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663996b3 MS |
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 | ||
663996b3 MS |
22 | #include <stdlib.h> |
23 | #include <pthread.h> | |
24 | #include <unistd.h> | |
25 | #include <fcntl.h> | |
26 | ||
27 | #include "log.h" | |
28 | #include "util.h" | |
29 | #include "macro.h" | |
e3bff60a | 30 | #include "formats-util.h" |
663996b3 MS |
31 | |
32 | #include "sd-bus.h" | |
663996b3 MS |
33 | #include "bus-error.h" |
34 | #include "bus-match.h" | |
35 | #include "bus-internal.h" | |
60f067b4 | 36 | #include "bus-util.h" |
663996b3 | 37 | |
e3bff60a | 38 | static int match_callback(sd_bus_message *m, void *userdata, sd_bus_error *ret_error) { |
663996b3 MS |
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 | } | |
42 | ||
e3bff60a | 43 | static int object_callback(sd_bus_message *m, void *userdata, sd_bus_error *ret_error) { |
663996b3 MS |
44 | int r; |
45 | ||
14228c0d | 46 | if (sd_bus_message_is_method_error(m, NULL)) |
663996b3 MS |
47 | return 0; |
48 | ||
49 | if (sd_bus_message_is_method_call(m, "org.object.test", "Foobar")) { | |
50 | log_info("Invoked Foobar() on %s", sd_bus_message_get_path(m)); | |
51 | ||
60f067b4 | 52 | r = sd_bus_reply_method_return(m, NULL); |
f47781d8 MP |
53 | if (r < 0) |
54 | return log_error_errno(r, "Failed to send reply: %m"); | |
663996b3 MS |
55 | |
56 | return 1; | |
57 | } | |
58 | ||
59 | return 0; | |
60 | } | |
61 | ||
62 | static int server_init(sd_bus **_bus) { | |
63 | sd_bus *bus = NULL; | |
64 | sd_id128_t id; | |
65 | int r; | |
66 | const char *unique; | |
67 | ||
e735f4d4 | 68 | assert_se(_bus); |
663996b3 MS |
69 | |
70 | r = sd_bus_open_user(&bus); | |
71 | if (r < 0) { | |
f47781d8 | 72 | log_error_errno(r, "Failed to connect to user bus: %m"); |
663996b3 MS |
73 | goto fail; |
74 | } | |
75 | ||
f47781d8 | 76 | r = sd_bus_get_bus_id(bus, &id); |
663996b3 | 77 | if (r < 0) { |
f47781d8 | 78 | log_error_errno(r, "Failed to get server ID: %m"); |
663996b3 MS |
79 | goto fail; |
80 | } | |
81 | ||
82 | r = sd_bus_get_unique_name(bus, &unique); | |
83 | if (r < 0) { | |
f47781d8 | 84 | log_error_errno(r, "Failed to get unique name: %m"); |
663996b3 MS |
85 | goto fail; |
86 | } | |
87 | ||
88 | log_info("Peer ID is " SD_ID128_FORMAT_STR ".", SD_ID128_FORMAT_VAL(id)); | |
89 | log_info("Unique ID: %s", unique); | |
90 | log_info("Can send file handles: %i", sd_bus_can_send(bus, 'h')); | |
91 | ||
92 | r = sd_bus_request_name(bus, "org.freedesktop.systemd.test", 0); | |
93 | if (r < 0) { | |
f47781d8 | 94 | log_error_errno(r, "Failed to acquire name: %m"); |
663996b3 MS |
95 | goto fail; |
96 | } | |
97 | ||
60f067b4 | 98 | r = sd_bus_add_fallback(bus, NULL, "/foo/bar", object_callback, NULL); |
663996b3 | 99 | if (r < 0) { |
f47781d8 | 100 | log_error_errno(r, "Failed to add object: %m"); |
663996b3 MS |
101 | goto fail; |
102 | } | |
103 | ||
60f067b4 | 104 | r = sd_bus_add_match(bus, NULL, "type='signal',interface='foo.bar',member='Notify'", match_callback, NULL); |
663996b3 | 105 | if (r < 0) { |
f47781d8 | 106 | log_error_errno(r, "Failed to add match: %m"); |
663996b3 MS |
107 | goto fail; |
108 | } | |
109 | ||
60f067b4 | 110 | r = sd_bus_add_match(bus, NULL, "type='signal',interface='org.freedesktop.DBus',member='NameOwnerChanged'", match_callback, NULL); |
663996b3 | 111 | if (r < 0) { |
f47781d8 | 112 | log_error_errno(r, "Failed to add match: %m"); |
663996b3 MS |
113 | goto fail; |
114 | } | |
115 | ||
116 | bus_match_dump(&bus->match_callbacks, 0); | |
117 | ||
118 | *_bus = bus; | |
119 | return 0; | |
120 | ||
121 | fail: | |
122 | if (bus) | |
123 | sd_bus_unref(bus); | |
124 | ||
125 | return r; | |
126 | } | |
127 | ||
128 | static int server(sd_bus *bus) { | |
129 | int r; | |
130 | bool client1_gone = false, client2_gone = false; | |
131 | ||
132 | while (!client1_gone || !client2_gone) { | |
133 | _cleanup_bus_message_unref_ sd_bus_message *m = NULL; | |
134 | pid_t pid = 0; | |
135 | const char *label = NULL; | |
136 | ||
137 | r = sd_bus_process(bus, &m); | |
138 | if (r < 0) { | |
f47781d8 | 139 | log_error_errno(r, "Failed to process requests: %m"); |
663996b3 MS |
140 | goto fail; |
141 | } | |
142 | ||
143 | if (r == 0) { | |
144 | r = sd_bus_wait(bus, (uint64_t) -1); | |
145 | if (r < 0) { | |
f47781d8 | 146 | log_error_errno(r, "Failed to wait: %m"); |
663996b3 MS |
147 | goto fail; |
148 | } | |
149 | ||
150 | continue; | |
151 | } | |
152 | ||
153 | if (!m) | |
154 | continue; | |
155 | ||
60f067b4 JS |
156 | sd_bus_creds_get_pid(sd_bus_message_get_creds(m), &pid); |
157 | sd_bus_creds_get_selinux_context(sd_bus_message_get_creds(m), &label); | |
158 | log_info("Got message! member=%s pid="PID_FMT" label=%s", | |
663996b3 | 159 | strna(sd_bus_message_get_member(m)), |
60f067b4 | 160 | pid, |
663996b3 MS |
161 | strna(label)); |
162 | /* bus_message_dump(m); */ | |
163 | /* sd_bus_message_rewind(m, true); */ | |
164 | ||
165 | if (sd_bus_message_is_method_call(m, "org.freedesktop.systemd.test", "LowerCase")) { | |
166 | const char *hello; | |
167 | _cleanup_free_ char *lowercase = NULL; | |
168 | ||
169 | r = sd_bus_message_read(m, "s", &hello); | |
170 | if (r < 0) { | |
f47781d8 | 171 | log_error_errno(r, "Failed to get parameter: %m"); |
663996b3 MS |
172 | goto fail; |
173 | } | |
174 | ||
175 | lowercase = strdup(hello); | |
176 | if (!lowercase) { | |
177 | r = log_oom(); | |
178 | goto fail; | |
179 | } | |
180 | ||
181 | ascii_strlower(lowercase); | |
182 | ||
60f067b4 | 183 | r = sd_bus_reply_method_return(m, "s", lowercase); |
663996b3 | 184 | if (r < 0) { |
f47781d8 | 185 | log_error_errno(r, "Failed to send reply: %m"); |
663996b3 MS |
186 | goto fail; |
187 | } | |
188 | } else if (sd_bus_message_is_method_call(m, "org.freedesktop.systemd.test", "ExitClient1")) { | |
189 | ||
60f067b4 | 190 | r = sd_bus_reply_method_return(m, NULL); |
663996b3 | 191 | if (r < 0) { |
f47781d8 | 192 | log_error_errno(r, "Failed to send reply: %m"); |
663996b3 MS |
193 | goto fail; |
194 | } | |
195 | ||
196 | client1_gone = true; | |
197 | } else if (sd_bus_message_is_method_call(m, "org.freedesktop.systemd.test", "ExitClient2")) { | |
198 | ||
60f067b4 | 199 | r = sd_bus_reply_method_return(m, NULL); |
663996b3 | 200 | if (r < 0) { |
f47781d8 | 201 | log_error_errno(r, "Failed to send reply: %m"); |
663996b3 MS |
202 | goto fail; |
203 | } | |
204 | ||
205 | client2_gone = true; | |
206 | } else if (sd_bus_message_is_method_call(m, "org.freedesktop.systemd.test", "Slow")) { | |
207 | ||
208 | sleep(1); | |
209 | ||
60f067b4 | 210 | r = sd_bus_reply_method_return(m, NULL); |
663996b3 | 211 | if (r < 0) { |
f47781d8 | 212 | log_error_errno(r, "Failed to send reply: %m"); |
663996b3 MS |
213 | goto fail; |
214 | } | |
215 | ||
216 | } else if (sd_bus_message_is_method_call(m, "org.freedesktop.systemd.test", "FileDescriptor")) { | |
217 | int fd; | |
218 | static const char x = 'X'; | |
219 | ||
220 | r = sd_bus_message_read(m, "h", &fd); | |
221 | if (r < 0) { | |
f47781d8 | 222 | log_error_errno(r, "Failed to get parameter: %m"); |
663996b3 MS |
223 | goto fail; |
224 | } | |
225 | ||
60f067b4 JS |
226 | log_info("Received fd=%d", fd); |
227 | ||
663996b3 | 228 | if (write(fd, &x, 1) < 0) { |
f47781d8 | 229 | log_error_errno(errno, "Failed to write to fd: %m"); |
60f067b4 | 230 | safe_close(fd); |
663996b3 MS |
231 | goto fail; |
232 | } | |
233 | ||
60f067b4 | 234 | r = sd_bus_reply_method_return(m, NULL); |
663996b3 | 235 | if (r < 0) { |
f47781d8 | 236 | log_error_errno(r, "Failed to send reply: %m"); |
663996b3 MS |
237 | goto fail; |
238 | } | |
239 | ||
240 | } else if (sd_bus_message_is_method_call(m, NULL, NULL)) { | |
241 | ||
242 | r = sd_bus_reply_method_error( | |
60f067b4 JS |
243 | m, |
244 | &SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_UNKNOWN_METHOD, "Unknown method.")); | |
663996b3 | 245 | if (r < 0) { |
f47781d8 | 246 | log_error_errno(r, "Failed to send reply: %m"); |
663996b3 MS |
247 | goto fail; |
248 | } | |
249 | } | |
250 | } | |
251 | ||
252 | r = 0; | |
253 | ||
254 | fail: | |
255 | if (bus) { | |
256 | sd_bus_flush(bus); | |
257 | sd_bus_unref(bus); | |
258 | } | |
259 | ||
260 | return r; | |
261 | } | |
262 | ||
263 | static void* client1(void*p) { | |
264 | _cleanup_bus_message_unref_ sd_bus_message *reply = NULL; | |
e3bff60a MP |
265 | _cleanup_bus_close_unref_ sd_bus *bus = NULL; |
266 | _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; | |
663996b3 MS |
267 | const char *hello; |
268 | int r; | |
e3bff60a | 269 | _cleanup_close_pair_ int pp[2] = { -1, -1 }; |
663996b3 MS |
270 | char x; |
271 | ||
272 | r = sd_bus_open_user(&bus); | |
273 | if (r < 0) { | |
f47781d8 | 274 | log_error_errno(r, "Failed to connect to user bus: %m"); |
663996b3 MS |
275 | goto finish; |
276 | } | |
277 | ||
278 | r = sd_bus_call_method( | |
279 | bus, | |
280 | "org.freedesktop.systemd.test", | |
281 | "/", | |
282 | "org.freedesktop.systemd.test", | |
283 | "LowerCase", | |
284 | &error, | |
285 | &reply, | |
286 | "s", | |
287 | "HELLO"); | |
288 | if (r < 0) { | |
f47781d8 | 289 | log_error_errno(r, "Failed to issue method call: %m"); |
663996b3 MS |
290 | goto finish; |
291 | } | |
292 | ||
293 | r = sd_bus_message_read(reply, "s", &hello); | |
294 | if (r < 0) { | |
f47781d8 | 295 | log_error_errno(r, "Failed to get string: %m"); |
663996b3 MS |
296 | goto finish; |
297 | } | |
298 | ||
e735f4d4 | 299 | assert_se(streq(hello, "hello")); |
663996b3 MS |
300 | |
301 | if (pipe2(pp, O_CLOEXEC|O_NONBLOCK) < 0) { | |
f47781d8 | 302 | log_error_errno(errno, "Failed to allocate pipe: %m"); |
663996b3 MS |
303 | r = -errno; |
304 | goto finish; | |
305 | } | |
306 | ||
60f067b4 JS |
307 | log_info("Sending fd=%d", pp[1]); |
308 | ||
663996b3 MS |
309 | r = sd_bus_call_method( |
310 | bus, | |
311 | "org.freedesktop.systemd.test", | |
312 | "/", | |
313 | "org.freedesktop.systemd.test", | |
314 | "FileDescriptor", | |
315 | &error, | |
316 | NULL, | |
317 | "h", | |
318 | pp[1]); | |
319 | if (r < 0) { | |
f47781d8 | 320 | log_error_errno(r, "Failed to issue method call: %m"); |
663996b3 MS |
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 | ||
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, | |
60f067b4 | 338 | &q, |
663996b3 MS |
339 | "org.freedesktop.systemd.test", |
340 | "/", | |
341 | "org.freedesktop.systemd.test", | |
60f067b4 | 342 | "ExitClient1"); |
663996b3 | 343 | if (r < 0) |
f47781d8 | 344 | log_error_errno(r, "Failed to allocate method call: %m"); |
663996b3 MS |
345 | else |
346 | sd_bus_send(bus, q, NULL); | |
347 | ||
663996b3 MS |
348 | } |
349 | ||
663996b3 MS |
350 | return INT_TO_PTR(r); |
351 | } | |
352 | ||
e3bff60a | 353 | static int quit_callback(sd_bus_message *m, void *userdata, sd_bus_error *ret_error) { |
663996b3 MS |
354 | bool *x = userdata; |
355 | ||
60f067b4 | 356 | log_error("Quit callback: %s", strerror(sd_bus_message_get_errno(m))); |
663996b3 MS |
357 | |
358 | *x = 1; | |
359 | return 1; | |
360 | } | |
361 | ||
362 | static void* client2(void*p) { | |
363 | _cleanup_bus_message_unref_ sd_bus_message *m = NULL, *reply = NULL; | |
e3bff60a MP |
364 | _cleanup_bus_close_unref_ sd_bus *bus = NULL; |
365 | _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; | |
663996b3 MS |
366 | bool quit = false; |
367 | const char *mid; | |
368 | int r; | |
369 | ||
370 | r = sd_bus_open_user(&bus); | |
371 | if (r < 0) { | |
f47781d8 | 372 | log_error_errno(r, "Failed to connect to user bus: %m"); |
663996b3 MS |
373 | goto finish; |
374 | } | |
375 | ||
376 | r = sd_bus_message_new_method_call( | |
377 | bus, | |
60f067b4 | 378 | &m, |
663996b3 MS |
379 | "org.freedesktop.systemd.test", |
380 | "/foo/bar/waldo/piep", | |
381 | "org.object.test", | |
60f067b4 | 382 | "Foobar"); |
663996b3 | 383 | if (r < 0) { |
f47781d8 | 384 | log_error_errno(r, "Failed to allocate method call: %m"); |
663996b3 MS |
385 | goto finish; |
386 | } | |
387 | ||
388 | r = sd_bus_send(bus, m, NULL); | |
389 | if (r < 0) { | |
390 | log_error("Failed to issue method call: %s", bus_error_message(&error, -r)); | |
391 | goto finish; | |
392 | } | |
393 | ||
e3bff60a | 394 | m = sd_bus_message_unref(m); |
663996b3 MS |
395 | |
396 | r = sd_bus_message_new_signal( | |
397 | bus, | |
60f067b4 | 398 | &m, |
663996b3 MS |
399 | "/foobar", |
400 | "foo.bar", | |
60f067b4 | 401 | "Notify"); |
663996b3 | 402 | if (r < 0) { |
f47781d8 | 403 | log_error_errno(r, "Failed to allocate signal: %m"); |
663996b3 MS |
404 | goto finish; |
405 | } | |
406 | ||
407 | r = sd_bus_send(bus, m, NULL); | |
408 | if (r < 0) { | |
409 | log_error("Failed to issue signal: %s", bus_error_message(&error, -r)); | |
410 | goto finish; | |
411 | } | |
412 | ||
e3bff60a | 413 | m = sd_bus_message_unref(m); |
663996b3 MS |
414 | |
415 | r = sd_bus_message_new_method_call( | |
416 | bus, | |
60f067b4 | 417 | &m, |
663996b3 MS |
418 | "org.freedesktop.systemd.test", |
419 | "/", | |
420 | "org.freedesktop.DBus.Peer", | |
60f067b4 | 421 | "GetMachineId"); |
663996b3 | 422 | if (r < 0) { |
f47781d8 | 423 | log_error_errno(r, "Failed to allocate method call: %m"); |
663996b3 MS |
424 | goto finish; |
425 | } | |
426 | ||
60f067b4 | 427 | r = sd_bus_call(bus, m, 0, &error, &reply); |
663996b3 MS |
428 | if (r < 0) { |
429 | log_error("Failed to issue method call: %s", bus_error_message(&error, -r)); | |
430 | goto finish; | |
431 | } | |
432 | ||
433 | r = sd_bus_message_read(reply, "s", &mid); | |
434 | if (r < 0) { | |
f47781d8 | 435 | log_error_errno(r, "Failed to parse machine ID: %m"); |
663996b3 MS |
436 | goto finish; |
437 | } | |
438 | ||
439 | log_info("Machine ID is %s.", mid); | |
440 | ||
e3bff60a | 441 | m = sd_bus_message_unref(m); |
663996b3 MS |
442 | |
443 | r = sd_bus_message_new_method_call( | |
444 | bus, | |
60f067b4 | 445 | &m, |
663996b3 MS |
446 | "org.freedesktop.systemd.test", |
447 | "/", | |
448 | "org.freedesktop.systemd.test", | |
60f067b4 | 449 | "Slow"); |
663996b3 | 450 | if (r < 0) { |
f47781d8 | 451 | log_error_errno(r, "Failed to allocate method call: %m"); |
663996b3 MS |
452 | goto finish; |
453 | } | |
454 | ||
e3bff60a | 455 | reply = sd_bus_message_unref(reply); |
663996b3 | 456 | |
60f067b4 | 457 | r = sd_bus_call(bus, m, 200 * USEC_PER_MSEC, &error, &reply); |
663996b3 MS |
458 | if (r < 0) |
459 | log_info("Failed to issue method call: %s", bus_error_message(&error, -r)); | |
460 | else | |
461 | log_info("Slow call succeed."); | |
462 | ||
e3bff60a | 463 | m = sd_bus_message_unref(m); |
663996b3 MS |
464 | |
465 | r = sd_bus_message_new_method_call( | |
466 | bus, | |
60f067b4 | 467 | &m, |
663996b3 MS |
468 | "org.freedesktop.systemd.test", |
469 | "/", | |
470 | "org.freedesktop.systemd.test", | |
60f067b4 | 471 | "Slow"); |
663996b3 | 472 | if (r < 0) { |
f47781d8 | 473 | log_error_errno(r, "Failed to allocate method call: %m"); |
663996b3 MS |
474 | goto finish; |
475 | } | |
476 | ||
60f067b4 | 477 | r = sd_bus_call_async(bus, NULL, m, quit_callback, &quit, 200 * USEC_PER_MSEC); |
663996b3 MS |
478 | if (r < 0) { |
479 | log_info("Failed to issue method call: %s", bus_error_message(&error, -r)); | |
480 | goto finish; | |
481 | } | |
482 | ||
483 | while (!quit) { | |
484 | r = sd_bus_process(bus, NULL); | |
485 | if (r < 0) { | |
f47781d8 | 486 | log_error_errno(r, "Failed to process requests: %m"); |
663996b3 MS |
487 | goto finish; |
488 | } | |
489 | if (r == 0) { | |
490 | r = sd_bus_wait(bus, (uint64_t) -1); | |
491 | if (r < 0) { | |
f47781d8 | 492 | log_error_errno(r, "Failed to wait: %m"); |
663996b3 MS |
493 | goto finish; |
494 | } | |
495 | } | |
496 | } | |
497 | ||
498 | r = 0; | |
499 | ||
500 | finish: | |
501 | if (bus) { | |
502 | _cleanup_bus_message_unref_ sd_bus_message *q; | |
503 | ||
504 | r = sd_bus_message_new_method_call( | |
505 | bus, | |
60f067b4 | 506 | &q, |
663996b3 MS |
507 | "org.freedesktop.systemd.test", |
508 | "/", | |
509 | "org.freedesktop.systemd.test", | |
60f067b4 | 510 | "ExitClient2"); |
663996b3 | 511 | if (r < 0) { |
f47781d8 | 512 | log_error_errno(r, "Failed to allocate method call: %m"); |
663996b3 MS |
513 | goto finish; |
514 | } | |
515 | ||
e3bff60a | 516 | (void) sd_bus_send(bus, q, NULL); |
663996b3 MS |
517 | } |
518 | ||
663996b3 MS |
519 | return INT_TO_PTR(r); |
520 | } | |
521 | ||
522 | int main(int argc, char *argv[]) { | |
523 | pthread_t c1, c2; | |
524 | sd_bus *bus; | |
525 | void *p; | |
526 | int q, r; | |
527 | ||
528 | r = server_init(&bus); | |
529 | if (r < 0) { | |
530 | log_info("Failed to connect to bus, skipping tests."); | |
531 | return EXIT_TEST_SKIP; | |
532 | } | |
533 | ||
534 | log_info("Initialized..."); | |
535 | ||
536 | r = pthread_create(&c1, NULL, client1, bus); | |
537 | if (r != 0) | |
538 | return EXIT_FAILURE; | |
539 | ||
540 | r = pthread_create(&c2, NULL, client2, bus); | |
541 | if (r != 0) | |
542 | return EXIT_FAILURE; | |
543 | ||
544 | r = server(bus); | |
545 | ||
546 | q = pthread_join(c1, &p); | |
547 | if (q != 0) | |
548 | return EXIT_FAILURE; | |
549 | if (PTR_TO_INT(p) < 0) | |
550 | return EXIT_FAILURE; | |
551 | ||
552 | q = pthread_join(c2, &p); | |
553 | if (q != 0) | |
554 | return EXIT_FAILURE; | |
555 | if (PTR_TO_INT(p) < 0) | |
556 | return EXIT_FAILURE; | |
557 | ||
558 | if (r < 0) | |
559 | return EXIT_FAILURE; | |
560 | ||
561 | return EXIT_SUCCESS; | |
562 | } |