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52ad194e | 1 | /* SPDX-License-Identifier: LGPL-2.1+ */ |
663996b3 MS |
2 | /*** |
3 | This file is part of systemd. | |
4 | ||
5 | Copyright 2013 Lennart Poettering | |
6 | ||
7 | systemd is free software; you can redistribute it and/or modify it | |
8 | under the terms of the GNU Lesser General Public License as published by | |
9 | the Free Software Foundation; either version 2.1 of the License, or | |
10 | (at your option) any later version. | |
11 | ||
12 | systemd is distributed in the hope that it will be useful, but | |
13 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 | Lesser General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU Lesser General Public License | |
18 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
19 | ***/ | |
20 | ||
db2df898 | 21 | #include <fcntl.h> |
663996b3 | 22 | #include <pthread.h> |
db2df898 | 23 | #include <stdlib.h> |
663996b3 | 24 | #include <unistd.h> |
663996b3 MS |
25 | |
26 | #include "sd-bus.h" | |
db2df898 MP |
27 | |
28 | #include "alloc-util.h" | |
663996b3 | 29 | #include "bus-error.h" |
663996b3 | 30 | #include "bus-internal.h" |
db2df898 | 31 | #include "bus-match.h" |
60f067b4 | 32 | #include "bus-util.h" |
db2df898 | 33 | #include "fd-util.h" |
2897b343 | 34 | #include "format-util.h" |
db2df898 MP |
35 | #include "log.h" |
36 | #include "macro.h" | |
37 | #include "util.h" | |
663996b3 | 38 | |
e3bff60a | 39 | static int match_callback(sd_bus_message *m, void *userdata, sd_bus_error *ret_error) { |
663996b3 MS |
40 | log_info("Match triggered! interface=%s member=%s", strna(sd_bus_message_get_interface(m)), strna(sd_bus_message_get_member(m))); |
41 | return 0; | |
42 | } | |
43 | ||
e3bff60a | 44 | static int object_callback(sd_bus_message *m, void *userdata, sd_bus_error *ret_error) { |
663996b3 MS |
45 | int r; |
46 | ||
14228c0d | 47 | if (sd_bus_message_is_method_error(m, NULL)) |
663996b3 MS |
48 | return 0; |
49 | ||
50 | if (sd_bus_message_is_method_call(m, "org.object.test", "Foobar")) { | |
51 | log_info("Invoked Foobar() on %s", sd_bus_message_get_path(m)); | |
52 | ||
60f067b4 | 53 | r = sd_bus_reply_method_return(m, NULL); |
f47781d8 MP |
54 | if (r < 0) |
55 | return log_error_errno(r, "Failed to send reply: %m"); | |
663996b3 MS |
56 | |
57 | return 1; | |
58 | } | |
59 | ||
60 | return 0; | |
61 | } | |
62 | ||
63 | static int server_init(sd_bus **_bus) { | |
64 | sd_bus *bus = NULL; | |
65 | sd_id128_t id; | |
66 | int r; | |
67 | const char *unique; | |
68 | ||
e735f4d4 | 69 | assert_se(_bus); |
663996b3 MS |
70 | |
71 | r = sd_bus_open_user(&bus); | |
72 | if (r < 0) { | |
f47781d8 | 73 | log_error_errno(r, "Failed to connect to user bus: %m"); |
663996b3 MS |
74 | goto fail; |
75 | } | |
76 | ||
f47781d8 | 77 | r = sd_bus_get_bus_id(bus, &id); |
663996b3 | 78 | if (r < 0) { |
f47781d8 | 79 | log_error_errno(r, "Failed to get server ID: %m"); |
663996b3 MS |
80 | goto fail; |
81 | } | |
82 | ||
83 | r = sd_bus_get_unique_name(bus, &unique); | |
84 | if (r < 0) { | |
f47781d8 | 85 | log_error_errno(r, "Failed to get unique name: %m"); |
663996b3 MS |
86 | goto fail; |
87 | } | |
88 | ||
89 | log_info("Peer ID is " SD_ID128_FORMAT_STR ".", SD_ID128_FORMAT_VAL(id)); | |
90 | log_info("Unique ID: %s", unique); | |
91 | log_info("Can send file handles: %i", sd_bus_can_send(bus, 'h')); | |
92 | ||
93 | r = sd_bus_request_name(bus, "org.freedesktop.systemd.test", 0); | |
94 | if (r < 0) { | |
f47781d8 | 95 | log_error_errno(r, "Failed to acquire name: %m"); |
663996b3 MS |
96 | goto fail; |
97 | } | |
98 | ||
60f067b4 | 99 | r = sd_bus_add_fallback(bus, NULL, "/foo/bar", object_callback, NULL); |
663996b3 | 100 | if (r < 0) { |
f47781d8 | 101 | log_error_errno(r, "Failed to add object: %m"); |
663996b3 MS |
102 | goto fail; |
103 | } | |
104 | ||
60f067b4 | 105 | r = sd_bus_add_match(bus, NULL, "type='signal',interface='foo.bar',member='Notify'", match_callback, NULL); |
663996b3 | 106 | if (r < 0) { |
f47781d8 | 107 | log_error_errno(r, "Failed to add match: %m"); |
663996b3 MS |
108 | goto fail; |
109 | } | |
110 | ||
60f067b4 | 111 | r = sd_bus_add_match(bus, NULL, "type='signal',interface='org.freedesktop.DBus',member='NameOwnerChanged'", match_callback, NULL); |
663996b3 | 112 | if (r < 0) { |
f47781d8 | 113 | log_error_errno(r, "Failed to add match: %m"); |
663996b3 MS |
114 | goto fail; |
115 | } | |
116 | ||
117 | bus_match_dump(&bus->match_callbacks, 0); | |
118 | ||
119 | *_bus = bus; | |
120 | return 0; | |
121 | ||
122 | fail: | |
13d276d0 | 123 | sd_bus_unref(bus); |
663996b3 MS |
124 | return r; |
125 | } | |
126 | ||
127 | static int server(sd_bus *bus) { | |
128 | int r; | |
129 | bool client1_gone = false, client2_gone = false; | |
130 | ||
131 | while (!client1_gone || !client2_gone) { | |
4c89c718 | 132 | _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL; |
663996b3 MS |
133 | pid_t pid = 0; |
134 | const char *label = NULL; | |
135 | ||
136 | r = sd_bus_process(bus, &m); | |
137 | if (r < 0) { | |
f47781d8 | 138 | log_error_errno(r, "Failed to process requests: %m"); |
663996b3 MS |
139 | goto fail; |
140 | } | |
141 | ||
142 | if (r == 0) { | |
143 | r = sd_bus_wait(bus, (uint64_t) -1); | |
144 | if (r < 0) { | |
f47781d8 | 145 | log_error_errno(r, "Failed to wait: %m"); |
663996b3 MS |
146 | goto fail; |
147 | } | |
148 | ||
149 | continue; | |
150 | } | |
151 | ||
152 | if (!m) | |
153 | continue; | |
154 | ||
60f067b4 JS |
155 | sd_bus_creds_get_pid(sd_bus_message_get_creds(m), &pid); |
156 | sd_bus_creds_get_selinux_context(sd_bus_message_get_creds(m), &label); | |
157 | log_info("Got message! member=%s pid="PID_FMT" label=%s", | |
663996b3 | 158 | strna(sd_bus_message_get_member(m)), |
60f067b4 | 159 | pid, |
663996b3 MS |
160 | strna(label)); |
161 | /* bus_message_dump(m); */ | |
162 | /* sd_bus_message_rewind(m, true); */ | |
163 | ||
164 | if (sd_bus_message_is_method_call(m, "org.freedesktop.systemd.test", "LowerCase")) { | |
165 | const char *hello; | |
166 | _cleanup_free_ char *lowercase = NULL; | |
167 | ||
168 | r = sd_bus_message_read(m, "s", &hello); | |
169 | if (r < 0) { | |
f47781d8 | 170 | log_error_errno(r, "Failed to get parameter: %m"); |
663996b3 MS |
171 | goto fail; |
172 | } | |
173 | ||
174 | lowercase = strdup(hello); | |
175 | if (!lowercase) { | |
176 | r = log_oom(); | |
177 | goto fail; | |
178 | } | |
179 | ||
180 | ascii_strlower(lowercase); | |
181 | ||
60f067b4 | 182 | r = sd_bus_reply_method_return(m, "s", lowercase); |
663996b3 | 183 | if (r < 0) { |
f47781d8 | 184 | log_error_errno(r, "Failed to send reply: %m"); |
663996b3 MS |
185 | goto fail; |
186 | } | |
187 | } else if (sd_bus_message_is_method_call(m, "org.freedesktop.systemd.test", "ExitClient1")) { | |
188 | ||
60f067b4 | 189 | r = sd_bus_reply_method_return(m, NULL); |
663996b3 | 190 | if (r < 0) { |
f47781d8 | 191 | log_error_errno(r, "Failed to send reply: %m"); |
663996b3 MS |
192 | goto fail; |
193 | } | |
194 | ||
195 | client1_gone = true; | |
196 | } else if (sd_bus_message_is_method_call(m, "org.freedesktop.systemd.test", "ExitClient2")) { | |
197 | ||
60f067b4 | 198 | r = sd_bus_reply_method_return(m, NULL); |
663996b3 | 199 | if (r < 0) { |
f47781d8 | 200 | log_error_errno(r, "Failed to send reply: %m"); |
663996b3 MS |
201 | goto fail; |
202 | } | |
203 | ||
204 | client2_gone = true; | |
205 | } else if (sd_bus_message_is_method_call(m, "org.freedesktop.systemd.test", "Slow")) { | |
206 | ||
207 | sleep(1); | |
208 | ||
60f067b4 | 209 | r = sd_bus_reply_method_return(m, NULL); |
663996b3 | 210 | if (r < 0) { |
f47781d8 | 211 | log_error_errno(r, "Failed to send reply: %m"); |
663996b3 MS |
212 | goto fail; |
213 | } | |
214 | ||
215 | } else if (sd_bus_message_is_method_call(m, "org.freedesktop.systemd.test", "FileDescriptor")) { | |
216 | int fd; | |
217 | static const char x = 'X'; | |
218 | ||
219 | r = sd_bus_message_read(m, "h", &fd); | |
220 | if (r < 0) { | |
f47781d8 | 221 | log_error_errno(r, "Failed to get parameter: %m"); |
663996b3 MS |
222 | goto fail; |
223 | } | |
224 | ||
60f067b4 JS |
225 | log_info("Received fd=%d", fd); |
226 | ||
663996b3 | 227 | if (write(fd, &x, 1) < 0) { |
f47781d8 | 228 | log_error_errno(errno, "Failed to write to fd: %m"); |
60f067b4 | 229 | safe_close(fd); |
663996b3 MS |
230 | goto fail; |
231 | } | |
232 | ||
60f067b4 | 233 | r = sd_bus_reply_method_return(m, NULL); |
663996b3 | 234 | if (r < 0) { |
f47781d8 | 235 | log_error_errno(r, "Failed to send reply: %m"); |
663996b3 MS |
236 | goto fail; |
237 | } | |
238 | ||
239 | } else if (sd_bus_message_is_method_call(m, NULL, NULL)) { | |
240 | ||
241 | r = sd_bus_reply_method_error( | |
60f067b4 JS |
242 | m, |
243 | &SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_UNKNOWN_METHOD, "Unknown method.")); | |
663996b3 | 244 | if (r < 0) { |
f47781d8 | 245 | log_error_errno(r, "Failed to send reply: %m"); |
663996b3 MS |
246 | goto fail; |
247 | } | |
248 | } | |
249 | } | |
250 | ||
251 | r = 0; | |
252 | ||
253 | fail: | |
254 | if (bus) { | |
255 | sd_bus_flush(bus); | |
256 | sd_bus_unref(bus); | |
257 | } | |
258 | ||
259 | return r; | |
260 | } | |
261 | ||
262 | static void* client1(void*p) { | |
4c89c718 MP |
263 | _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; |
264 | _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL; | |
265 | _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; | |
663996b3 MS |
266 | const char *hello; |
267 | int r; | |
e3bff60a | 268 | _cleanup_close_pair_ int pp[2] = { -1, -1 }; |
663996b3 MS |
269 | char x; |
270 | ||
271 | r = sd_bus_open_user(&bus); | |
272 | if (r < 0) { | |
f47781d8 | 273 | log_error_errno(r, "Failed to connect to user bus: %m"); |
663996b3 MS |
274 | goto finish; |
275 | } | |
276 | ||
277 | r = sd_bus_call_method( | |
278 | bus, | |
279 | "org.freedesktop.systemd.test", | |
280 | "/", | |
281 | "org.freedesktop.systemd.test", | |
282 | "LowerCase", | |
283 | &error, | |
284 | &reply, | |
285 | "s", | |
286 | "HELLO"); | |
287 | if (r < 0) { | |
f47781d8 | 288 | log_error_errno(r, "Failed to issue method call: %m"); |
663996b3 MS |
289 | goto finish; |
290 | } | |
291 | ||
292 | r = sd_bus_message_read(reply, "s", &hello); | |
293 | if (r < 0) { | |
f47781d8 | 294 | log_error_errno(r, "Failed to get string: %m"); |
663996b3 MS |
295 | goto finish; |
296 | } | |
297 | ||
e735f4d4 | 298 | assert_se(streq(hello, "hello")); |
663996b3 MS |
299 | |
300 | if (pipe2(pp, O_CLOEXEC|O_NONBLOCK) < 0) { | |
f47781d8 | 301 | log_error_errno(errno, "Failed to allocate pipe: %m"); |
663996b3 MS |
302 | r = -errno; |
303 | goto finish; | |
304 | } | |
305 | ||
60f067b4 JS |
306 | log_info("Sending fd=%d", pp[1]); |
307 | ||
663996b3 MS |
308 | r = sd_bus_call_method( |
309 | bus, | |
310 | "org.freedesktop.systemd.test", | |
311 | "/", | |
312 | "org.freedesktop.systemd.test", | |
313 | "FileDescriptor", | |
314 | &error, | |
315 | NULL, | |
316 | "h", | |
317 | pp[1]); | |
318 | if (r < 0) { | |
f47781d8 | 319 | log_error_errno(r, "Failed to issue method call: %m"); |
663996b3 MS |
320 | goto finish; |
321 | } | |
322 | ||
323 | errno = 0; | |
324 | if (read(pp[0], &x, 1) <= 0) { | |
325 | log_error("Failed to read from pipe: %s", errno ? strerror(errno) : "early read"); | |
326 | goto finish; | |
327 | } | |
328 | ||
329 | r = 0; | |
330 | ||
331 | finish: | |
332 | if (bus) { | |
4c89c718 | 333 | _cleanup_(sd_bus_message_unrefp) sd_bus_message *q; |
663996b3 MS |
334 | |
335 | r = sd_bus_message_new_method_call( | |
336 | bus, | |
60f067b4 | 337 | &q, |
663996b3 MS |
338 | "org.freedesktop.systemd.test", |
339 | "/", | |
340 | "org.freedesktop.systemd.test", | |
60f067b4 | 341 | "ExitClient1"); |
663996b3 | 342 | if (r < 0) |
f47781d8 | 343 | log_error_errno(r, "Failed to allocate method call: %m"); |
663996b3 MS |
344 | else |
345 | sd_bus_send(bus, q, NULL); | |
346 | ||
663996b3 MS |
347 | } |
348 | ||
663996b3 MS |
349 | return INT_TO_PTR(r); |
350 | } | |
351 | ||
e3bff60a | 352 | static int quit_callback(sd_bus_message *m, void *userdata, sd_bus_error *ret_error) { |
663996b3 MS |
353 | bool *x = userdata; |
354 | ||
8a584da2 | 355 | log_error_errno(sd_bus_message_get_errno(m), "Quit callback: %m"); |
663996b3 MS |
356 | |
357 | *x = 1; | |
358 | return 1; | |
359 | } | |
360 | ||
361 | static void* client2(void*p) { | |
4c89c718 MP |
362 | _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL, *reply = NULL; |
363 | _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL; | |
364 | _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; | |
663996b3 MS |
365 | bool quit = false; |
366 | const char *mid; | |
367 | int r; | |
368 | ||
369 | r = sd_bus_open_user(&bus); | |
370 | if (r < 0) { | |
f47781d8 | 371 | log_error_errno(r, "Failed to connect to user bus: %m"); |
663996b3 MS |
372 | goto finish; |
373 | } | |
374 | ||
375 | r = sd_bus_message_new_method_call( | |
376 | bus, | |
60f067b4 | 377 | &m, |
663996b3 MS |
378 | "org.freedesktop.systemd.test", |
379 | "/foo/bar/waldo/piep", | |
380 | "org.object.test", | |
60f067b4 | 381 | "Foobar"); |
663996b3 | 382 | if (r < 0) { |
f47781d8 | 383 | log_error_errno(r, "Failed to allocate method call: %m"); |
663996b3 MS |
384 | goto finish; |
385 | } | |
386 | ||
387 | r = sd_bus_send(bus, m, NULL); | |
388 | if (r < 0) { | |
389 | log_error("Failed to issue method call: %s", bus_error_message(&error, -r)); | |
390 | goto finish; | |
391 | } | |
392 | ||
e3bff60a | 393 | m = sd_bus_message_unref(m); |
663996b3 MS |
394 | |
395 | r = sd_bus_message_new_signal( | |
396 | bus, | |
60f067b4 | 397 | &m, |
663996b3 MS |
398 | "/foobar", |
399 | "foo.bar", | |
60f067b4 | 400 | "Notify"); |
663996b3 | 401 | if (r < 0) { |
f47781d8 | 402 | log_error_errno(r, "Failed to allocate signal: %m"); |
663996b3 MS |
403 | goto finish; |
404 | } | |
405 | ||
406 | r = sd_bus_send(bus, m, NULL); | |
407 | if (r < 0) { | |
408 | log_error("Failed to issue signal: %s", bus_error_message(&error, -r)); | |
409 | goto finish; | |
410 | } | |
411 | ||
e3bff60a | 412 | m = sd_bus_message_unref(m); |
663996b3 MS |
413 | |
414 | r = sd_bus_message_new_method_call( | |
415 | bus, | |
60f067b4 | 416 | &m, |
663996b3 MS |
417 | "org.freedesktop.systemd.test", |
418 | "/", | |
419 | "org.freedesktop.DBus.Peer", | |
60f067b4 | 420 | "GetMachineId"); |
663996b3 | 421 | if (r < 0) { |
f47781d8 | 422 | log_error_errno(r, "Failed to allocate method call: %m"); |
663996b3 MS |
423 | goto finish; |
424 | } | |
425 | ||
60f067b4 | 426 | r = sd_bus_call(bus, m, 0, &error, &reply); |
663996b3 MS |
427 | if (r < 0) { |
428 | log_error("Failed to issue method call: %s", bus_error_message(&error, -r)); | |
429 | goto finish; | |
430 | } | |
431 | ||
432 | r = sd_bus_message_read(reply, "s", &mid); | |
433 | if (r < 0) { | |
f47781d8 | 434 | log_error_errno(r, "Failed to parse machine ID: %m"); |
663996b3 MS |
435 | goto finish; |
436 | } | |
437 | ||
438 | log_info("Machine ID is %s.", mid); | |
439 | ||
e3bff60a | 440 | m = sd_bus_message_unref(m); |
663996b3 MS |
441 | |
442 | r = sd_bus_message_new_method_call( | |
443 | bus, | |
60f067b4 | 444 | &m, |
663996b3 MS |
445 | "org.freedesktop.systemd.test", |
446 | "/", | |
447 | "org.freedesktop.systemd.test", | |
60f067b4 | 448 | "Slow"); |
663996b3 | 449 | if (r < 0) { |
f47781d8 | 450 | log_error_errno(r, "Failed to allocate method call: %m"); |
663996b3 MS |
451 | goto finish; |
452 | } | |
453 | ||
e3bff60a | 454 | reply = sd_bus_message_unref(reply); |
663996b3 | 455 | |
60f067b4 | 456 | r = sd_bus_call(bus, m, 200 * USEC_PER_MSEC, &error, &reply); |
663996b3 MS |
457 | if (r < 0) |
458 | log_info("Failed to issue method call: %s", bus_error_message(&error, -r)); | |
459 | else | |
460 | log_info("Slow call succeed."); | |
461 | ||
e3bff60a | 462 | m = sd_bus_message_unref(m); |
663996b3 MS |
463 | |
464 | r = sd_bus_message_new_method_call( | |
465 | bus, | |
60f067b4 | 466 | &m, |
663996b3 MS |
467 | "org.freedesktop.systemd.test", |
468 | "/", | |
469 | "org.freedesktop.systemd.test", | |
60f067b4 | 470 | "Slow"); |
663996b3 | 471 | if (r < 0) { |
f47781d8 | 472 | log_error_errno(r, "Failed to allocate method call: %m"); |
663996b3 MS |
473 | goto finish; |
474 | } | |
475 | ||
60f067b4 | 476 | r = sd_bus_call_async(bus, NULL, m, quit_callback, &quit, 200 * USEC_PER_MSEC); |
663996b3 MS |
477 | if (r < 0) { |
478 | log_info("Failed to issue method call: %s", bus_error_message(&error, -r)); | |
479 | goto finish; | |
480 | } | |
481 | ||
482 | while (!quit) { | |
483 | r = sd_bus_process(bus, NULL); | |
484 | if (r < 0) { | |
f47781d8 | 485 | log_error_errno(r, "Failed to process requests: %m"); |
663996b3 MS |
486 | goto finish; |
487 | } | |
488 | if (r == 0) { | |
489 | r = sd_bus_wait(bus, (uint64_t) -1); | |
490 | if (r < 0) { | |
f47781d8 | 491 | log_error_errno(r, "Failed to wait: %m"); |
663996b3 MS |
492 | goto finish; |
493 | } | |
494 | } | |
495 | } | |
496 | ||
497 | r = 0; | |
498 | ||
499 | finish: | |
500 | if (bus) { | |
4c89c718 | 501 | _cleanup_(sd_bus_message_unrefp) sd_bus_message *q; |
663996b3 MS |
502 | |
503 | r = sd_bus_message_new_method_call( | |
504 | bus, | |
60f067b4 | 505 | &q, |
663996b3 MS |
506 | "org.freedesktop.systemd.test", |
507 | "/", | |
508 | "org.freedesktop.systemd.test", | |
60f067b4 | 509 | "ExitClient2"); |
663996b3 | 510 | if (r < 0) { |
f47781d8 | 511 | log_error_errno(r, "Failed to allocate method call: %m"); |
663996b3 MS |
512 | goto finish; |
513 | } | |
514 | ||
e3bff60a | 515 | (void) sd_bus_send(bus, q, NULL); |
663996b3 MS |
516 | } |
517 | ||
663996b3 MS |
518 | return INT_TO_PTR(r); |
519 | } | |
520 | ||
521 | int main(int argc, char *argv[]) { | |
522 | pthread_t c1, c2; | |
523 | sd_bus *bus; | |
524 | void *p; | |
525 | int q, r; | |
526 | ||
527 | r = server_init(&bus); | |
528 | if (r < 0) { | |
529 | log_info("Failed to connect to bus, skipping tests."); | |
530 | return EXIT_TEST_SKIP; | |
531 | } | |
532 | ||
533 | log_info("Initialized..."); | |
534 | ||
535 | r = pthread_create(&c1, NULL, client1, bus); | |
536 | if (r != 0) | |
537 | return EXIT_FAILURE; | |
538 | ||
539 | r = pthread_create(&c2, NULL, client2, bus); | |
540 | if (r != 0) | |
541 | return EXIT_FAILURE; | |
542 | ||
543 | r = server(bus); | |
544 | ||
545 | q = pthread_join(c1, &p); | |
546 | if (q != 0) | |
547 | return EXIT_FAILURE; | |
548 | if (PTR_TO_INT(p) < 0) | |
549 | return EXIT_FAILURE; | |
550 | ||
551 | q = pthread_join(c2, &p); | |
552 | if (q != 0) | |
553 | return EXIT_FAILURE; | |
554 | if (PTR_TO_INT(p) < 0) | |
555 | return EXIT_FAILURE; | |
556 | ||
557 | if (r < 0) | |
558 | return EXIT_FAILURE; | |
559 | ||
560 | return EXIT_SUCCESS; | |
561 | } |