1 | /* Test message queue passing. |
2 | Copyright (C) 2004-2022 Free Software Foundation, Inc. |
3 | This file is part of the GNU C Library. |
4 | |
5 | The GNU C Library is free software; you can redistribute it and/or |
6 | modify it under the terms of the GNU Lesser General Public |
7 | License as published by the Free Software Foundation; either |
8 | version 2.1 of the License, or (at your option) any later version. |
9 | |
10 | The GNU C Library is distributed in the hope that it will be useful, |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
13 | Lesser General Public License for more details. |
14 | |
15 | You should have received a copy of the GNU Lesser General Public |
16 | License along with the GNU C Library; if not, see |
17 | <https://www.gnu.org/licenses/>. */ |
18 | |
19 | #include <errno.h> |
20 | #include <fcntl.h> |
21 | #include <mqueue.h> |
22 | #include <signal.h> |
23 | #include <stdio.h> |
24 | #include <stdlib.h> |
25 | #include <string.h> |
26 | #include <sys/time.h> |
27 | #include <sys/wait.h> |
28 | #include <time.h> |
29 | #include <unistd.h> |
30 | #include <support/check.h> |
31 | #include "tst-mqueue.h" |
32 | |
33 | static void |
34 | alrm_handler (int sig) |
35 | { |
36 | } |
37 | |
38 | #define TEST_FUNCTION do_test () |
39 | static int |
40 | do_test (void) |
41 | { |
42 | int result = 0; |
43 | |
44 | char name[sizeof "/tst-mqueue2-" + sizeof (pid_t) * 3]; |
45 | snprintf (s: name, maxlen: sizeof (name), format: "/tst-mqueue2-%u" , getpid ()); |
46 | |
47 | struct mq_attr attr = { .mq_maxmsg = 2, .mq_msgsize = 2 }; |
48 | mqd_t q = mq_open (name: name, O_CREAT | O_EXCL | O_RDWR, 0600, &attr); |
49 | |
50 | if (q == (mqd_t) -1) |
51 | { |
52 | if (errno == ENOSYS) |
53 | FAIL_UNSUPPORTED ("mq_open not supported" ); |
54 | |
55 | printf (format: "mq_open failed with: %m\n" ); |
56 | return 1; |
57 | } |
58 | |
59 | add_temp_mq (name); |
60 | |
61 | mqd_t q2 = mq_open (name: name, O_CREAT | O_EXCL | O_RDWR, 0600, &attr); |
62 | if (q2 != (mqd_t) -1) |
63 | { |
64 | puts (s: "mq_open with O_EXCL unexpectedly succeeded" ); |
65 | result = 1; |
66 | } |
67 | else if (errno != EEXIST) |
68 | { |
69 | printf (format: "mq_open did not fail with EEXIST: %m\n" ); |
70 | result = 1; |
71 | } |
72 | |
73 | char name2[sizeof "/tst-mqueue2-2-" + sizeof (pid_t) * 3]; |
74 | snprintf (s: name2, maxlen: sizeof (name2), format: "/tst-mqueue2-2-%u" , getpid ()); |
75 | |
76 | attr.mq_maxmsg = -2; |
77 | q2 = mq_open (name: name2, O_CREAT | O_EXCL | O_RDWR, 0600, &attr); |
78 | if (q2 != (mqd_t) -1) |
79 | { |
80 | puts (s: "mq_open with invalid mq_maxmsg unexpectedly succeeded" ); |
81 | add_temp_mq (name: name2); |
82 | result = 1; |
83 | } |
84 | else if (errno != EINVAL) |
85 | { |
86 | printf (format: "mq_open with invalid mq_maxmsg did not fail with " |
87 | "EINVAL: %m\n" ); |
88 | result = 1; |
89 | } |
90 | |
91 | attr.mq_maxmsg = 2; |
92 | attr.mq_msgsize = -56; |
93 | q2 = mq_open (name: name2, O_CREAT | O_EXCL | O_RDWR, 0600, &attr); |
94 | if (q2 != (mqd_t) -1) |
95 | { |
96 | puts (s: "mq_open with invalid mq_msgsize unexpectedly succeeded" ); |
97 | add_temp_mq (name: name2); |
98 | result = 1; |
99 | } |
100 | else if (errno != EINVAL) |
101 | { |
102 | printf (format: "mq_open with invalid mq_msgsize did not fail with " |
103 | "EINVAL: %m\n" ); |
104 | result = 1; |
105 | } |
106 | |
107 | char buf[3]; |
108 | struct timespec ts; |
109 | if (clock_gettime (CLOCK_REALTIME, tp: &ts) == 0) |
110 | ts.tv_sec += 10; |
111 | else |
112 | { |
113 | ts.tv_sec = time (NULL) + 10; |
114 | ts.tv_nsec = 0; |
115 | } |
116 | |
117 | if (mq_timedreceive (mqdes: q, msg_ptr: buf, msg_len: 1, NULL, abs_timeout: &ts) == 0) |
118 | { |
119 | puts (s: "mq_timedreceive with too small msg_len did not fail" ); |
120 | result = 1; |
121 | } |
122 | else if (errno != EMSGSIZE) |
123 | { |
124 | printf (format: "mq_timedreceive with too small msg_len did not fail with " |
125 | "EMSGSIZE: %m\n" ); |
126 | result = 1; |
127 | } |
128 | |
129 | ts.tv_nsec = -1; |
130 | if (mq_timedreceive (mqdes: q, msg_ptr: buf, msg_len: 2, NULL, abs_timeout: &ts) == 0) |
131 | { |
132 | puts (s: "mq_timedreceive with negative tv_nsec did not fail" ); |
133 | result = 1; |
134 | } |
135 | else if (errno != EINVAL) |
136 | { |
137 | printf (format: "mq_timedreceive with negative tv_nsec did not fail with " |
138 | "EINVAL: %m\n" ); |
139 | result = 1; |
140 | } |
141 | |
142 | ts.tv_nsec = 1000000000; |
143 | if (mq_timedreceive (mqdes: q, msg_ptr: buf, msg_len: 2, NULL, abs_timeout: &ts) == 0) |
144 | { |
145 | puts (s: "mq_timedreceive with tv_nsec >= 1000000000 did not fail" ); |
146 | result = 1; |
147 | } |
148 | else if (errno != EINVAL) |
149 | { |
150 | printf (format: "mq_timedreceive with tv_nsec >= 1000000000 did not fail with " |
151 | "EINVAL: %m\n" ); |
152 | result = 1; |
153 | } |
154 | |
155 | struct sigaction sa = { .sa_handler = alrm_handler, .sa_flags = 0 }; |
156 | sigemptyset (&sa.sa_mask); |
157 | sigaction (SIGALRM, act: &sa, NULL); |
158 | |
159 | struct itimerval it = { .it_value = { .tv_sec = 1 } }; |
160 | setitimer (ITIMER_REAL, new: &it, NULL); |
161 | |
162 | if (mq_receive (mqdes: q, msg_ptr: buf, msg_len: 2, NULL) == 0) |
163 | { |
164 | puts (s: "mq_receive on empty queue did not block" ); |
165 | result = 1; |
166 | } |
167 | else if (errno != EINTR) |
168 | { |
169 | printf (format: "mq_receive on empty queue did not fail with EINTR: %m\n" ); |
170 | result = 1; |
171 | } |
172 | |
173 | setitimer (ITIMER_REAL, new: &it, NULL); |
174 | |
175 | ts.tv_nsec = 0; |
176 | if (mq_timedreceive (mqdes: q, msg_ptr: buf, msg_len: 2, NULL, abs_timeout: &ts) == 0) |
177 | { |
178 | puts (s: "mq_timedreceive on empty queue did not block" ); |
179 | result = 1; |
180 | } |
181 | else if (errno != EINTR) |
182 | { |
183 | printf (format: "mq_timedreceive on empty queue did not fail with EINTR: %m\n" ); |
184 | result = 1; |
185 | } |
186 | |
187 | buf[0] = '6'; |
188 | buf[1] = '7'; |
189 | if (mq_send (mqdes: q, msg_ptr: buf, msg_len: 2, msg_prio: 3) != 0 |
190 | || (buf[0] = '8', mq_send (mqdes: q, msg_ptr: buf, msg_len: 1, msg_prio: 4) != 0)) |
191 | { |
192 | printf (format: "mq_send failed: %m\n" ); |
193 | result = 1; |
194 | } |
195 | |
196 | memset (buf, ' ', sizeof (buf)); |
197 | |
198 | unsigned int prio; |
199 | ssize_t rets = mq_receive (mqdes: q, msg_ptr: buf, msg_len: 3, msg_prio: &prio); |
200 | if (rets != 1) |
201 | { |
202 | if (rets == -1) |
203 | printf (format: "mq_receive failed: %m\n" ); |
204 | else |
205 | printf (format: "mq_receive returned %zd != 1\n" , rets); |
206 | result = 1; |
207 | } |
208 | else if (prio != 4 || memcmp (buf, "8 " , 3) != 0) |
209 | { |
210 | printf (format: "mq_receive prio %u (4) buf \"%c%c%c\" (\"8 \")\n" , |
211 | prio, buf[0], buf[1], buf[2]); |
212 | result = 1; |
213 | } |
214 | |
215 | rets = mq_receive (mqdes: q, msg_ptr: buf, msg_len: 2, NULL); |
216 | if (rets != 2) |
217 | { |
218 | if (rets == -1) |
219 | printf (format: "mq_receive failed: %m\n" ); |
220 | else |
221 | printf (format: "mq_receive returned %zd != 2\n" , rets); |
222 | result = 1; |
223 | } |
224 | else if (memcmp (buf, "67 " , 3) != 0) |
225 | { |
226 | printf (format: "mq_receive buf \"%c%c%c\" != \"67 \"\n" , |
227 | buf[0], buf[1], buf[2]); |
228 | result = 1; |
229 | } |
230 | |
231 | buf[0] = '2'; |
232 | buf[1] = '1'; |
233 | if (clock_gettime (CLOCK_REALTIME, tp: &ts) != 0) |
234 | ts.tv_sec = time (NULL); |
235 | ts.tv_nsec = -1000000001; |
236 | if ((mq_timedsend (mqdes: q, msg_ptr: buf, msg_len: 2, msg_prio: 5, abs_timeout: &ts) != 0 |
237 | && (errno != EINVAL || mq_send (mqdes: q, msg_ptr: buf, msg_len: 2, msg_prio: 5) != 0)) |
238 | || (buf[0] = '3', ts.tv_nsec = -ts.tv_nsec, |
239 | (mq_timedsend (mqdes: q, msg_ptr: buf, msg_len: 1, msg_prio: 4, abs_timeout: &ts) != 0 |
240 | && (errno != EINVAL || mq_send (mqdes: q, msg_ptr: buf, msg_len: 1, msg_prio: 4) != 0)))) |
241 | { |
242 | printf (format: "mq_timedsend failed: %m\n" ); |
243 | result = 1; |
244 | } |
245 | |
246 | buf[0] = '-'; |
247 | ts.tv_nsec = 1000000001; |
248 | if (mq_timedsend (mqdes: q, msg_ptr: buf, msg_len: 1, msg_prio: 6, abs_timeout: &ts) == 0) |
249 | { |
250 | puts (s: "mq_timedsend with tv_nsec >= 1000000000 did not fail" ); |
251 | result = 1; |
252 | } |
253 | else if (errno != EINVAL) |
254 | { |
255 | printf (format: "mq_timedsend with tv_nsec >= 1000000000 did not fail with " |
256 | "EINVAL: %m\n" ); |
257 | result = 1; |
258 | } |
259 | |
260 | ts.tv_nsec = -2; |
261 | if (mq_timedsend (mqdes: q, msg_ptr: buf, msg_len: 1, msg_prio: 6, abs_timeout: &ts) == 0) |
262 | { |
263 | puts (s: "mq_timedsend with negative tv_nsec did not fail" ); |
264 | result = 1; |
265 | } |
266 | else if (errno != EINVAL) |
267 | { |
268 | printf (format: "mq_timedsend with megatove tv_nsec did not fail with " |
269 | "EINVAL: %m\n" ); |
270 | result = 1; |
271 | } |
272 | |
273 | setitimer (ITIMER_REAL, new: &it, NULL); |
274 | |
275 | if (mq_send (mqdes: q, msg_ptr: buf, msg_len: 2, msg_prio: 8) == 0) |
276 | { |
277 | puts (s: "mq_send on full queue did not block" ); |
278 | result = 1; |
279 | } |
280 | else if (errno != EINTR) |
281 | { |
282 | printf (format: "mq_send on full queue did not fail with EINTR: %m\n" ); |
283 | result = 1; |
284 | } |
285 | |
286 | setitimer (ITIMER_REAL, new: &it, NULL); |
287 | |
288 | ts.tv_sec += 10; |
289 | ts.tv_nsec = 0; |
290 | if (mq_timedsend (mqdes: q, msg_ptr: buf, msg_len: 2, msg_prio: 7, abs_timeout: &ts) == 0) |
291 | { |
292 | puts (s: "mq_timedsend on full queue did not block" ); |
293 | result = 1; |
294 | } |
295 | else if (errno != EINTR) |
296 | { |
297 | printf (format: "mq_timedsend on full queue did not fail with EINTR: %m\n" ); |
298 | result = 1; |
299 | } |
300 | |
301 | memset (buf, ' ', sizeof (buf)); |
302 | |
303 | if (clock_gettime (CLOCK_REALTIME, tp: &ts) != 0) |
304 | ts.tv_sec = time (NULL); |
305 | ts.tv_nsec = -1000000001; |
306 | rets = mq_timedreceive (mqdes: q, msg_ptr: buf, msg_len: 2, msg_prio: &prio, abs_timeout: &ts); |
307 | if (rets == -1 && errno == EINVAL) |
308 | rets = mq_receive (mqdes: q, msg_ptr: buf, msg_len: 2, msg_prio: &prio); |
309 | if (rets != 2) |
310 | { |
311 | if (rets == -1) |
312 | printf (format: "mq_timedreceive failed: %m\n" ); |
313 | else |
314 | printf (format: "mq_timedreceive returned %zd != 2\n" , rets); |
315 | result = 1; |
316 | } |
317 | else if (prio != 5 || memcmp (buf, "21 " , 3) != 0) |
318 | { |
319 | printf (format: "mq_timedreceive prio %u (5) buf \"%c%c%c\" (\"21 \")\n" , |
320 | prio, buf[0], buf[1], buf[2]); |
321 | result = 1; |
322 | } |
323 | |
324 | if (mq_receive (mqdes: q, msg_ptr: buf, msg_len: 1, NULL) == 0) |
325 | { |
326 | puts (s: "mq_receive with too small msg_len did not fail" ); |
327 | result = 1; |
328 | } |
329 | else if (errno != EMSGSIZE) |
330 | { |
331 | printf (format: "mq_receive with too small msg_len did not fail with " |
332 | "EMSGSIZE: %m\n" ); |
333 | result = 1; |
334 | } |
335 | |
336 | ts.tv_nsec = -ts.tv_nsec; |
337 | rets = mq_timedreceive (mqdes: q, msg_ptr: buf, msg_len: 2, NULL, abs_timeout: &ts); |
338 | if (rets == -1 && errno == EINVAL) |
339 | rets = mq_receive (mqdes: q, msg_ptr: buf, msg_len: 2, NULL); |
340 | if (rets != 1) |
341 | { |
342 | if (rets == -1) |
343 | printf (format: "mq_timedreceive failed: %m\n" ); |
344 | else |
345 | printf (format: "mq_timedreceive returned %zd != 1\n" , rets); |
346 | result = 1; |
347 | } |
348 | else if (memcmp (buf, "31 " , 3) != 0) |
349 | { |
350 | printf (format: "mq_timedreceive buf \"%c%c%c\" != \"31 \"\n" , |
351 | buf[0], buf[1], buf[2]); |
352 | result = 1; |
353 | } |
354 | |
355 | if (mq_send (mqdes: q, msg_ptr: "" , msg_len: 0, msg_prio: 2) != 0) |
356 | { |
357 | printf (format: "mq_send with msg_len 0 failed: %m\n" ); |
358 | result = 1; |
359 | } |
360 | |
361 | rets = mq_receive (mqdes: q, msg_ptr: buf, msg_len: 2, msg_prio: &prio); |
362 | if (rets) |
363 | { |
364 | if (rets == -1) |
365 | printf (format: "mq_receive failed: %m\n" ); |
366 | else |
367 | printf (format: "mq_receive returned %zd != 0\n" , rets); |
368 | result = 1; |
369 | } |
370 | |
371 | long mq_prio_max = sysconf (_SC_MQ_PRIO_MAX); |
372 | if (mq_prio_max > 0 && (unsigned int) mq_prio_max == mq_prio_max) |
373 | { |
374 | if (mq_send (mqdes: q, msg_ptr: buf, msg_len: 1, msg_prio: mq_prio_max) == 0) |
375 | { |
376 | puts (s: "mq_send with MQ_PRIO_MAX priority unpexpectedly succeeded" ); |
377 | result = 1; |
378 | } |
379 | else if (errno != EINVAL) |
380 | { |
381 | printf (format: "mq_send with MQ_PRIO_MAX priority did not fail with " |
382 | "EINVAL: %m\n" ); |
383 | result = 1; |
384 | } |
385 | |
386 | if (mq_send (mqdes: q, msg_ptr: buf, msg_len: 1, msg_prio: mq_prio_max - 1) != 0) |
387 | { |
388 | printf (format: "mq_send with MQ_PRIO_MAX-1 priority failed: %m\n" ); |
389 | result = 1; |
390 | } |
391 | } |
392 | |
393 | if (mq_unlink (name: name) != 0) |
394 | { |
395 | printf (format: "mq_unlink failed: %m\n" ); |
396 | result = 1; |
397 | } |
398 | |
399 | q2 = mq_open (name: name, O_RDWR); |
400 | if (q2 != (mqd_t) -1) |
401 | { |
402 | printf (format: "mq_open of unlinked %s without O_CREAT unexpectedly" |
403 | "succeeded\n" , name); |
404 | result = 1; |
405 | } |
406 | else if (errno != ENOENT) |
407 | { |
408 | printf (format: "mq_open of unlinked %s without O_CREAT did not fail with " |
409 | "ENOENT: %m\n" , name); |
410 | result = 1; |
411 | } |
412 | |
413 | if (mq_close (mqdes: q) != 0) |
414 | { |
415 | printf (format: "mq_close in parent failed: %m\n" ); |
416 | result = 1; |
417 | } |
418 | |
419 | if (mq_receive (mqdes: q, msg_ptr: buf, msg_len: 2, NULL) == 0) |
420 | { |
421 | puts (s: "mq_receive on invalid mqd_t did not fail" ); |
422 | result = 1; |
423 | } |
424 | else if (errno != EBADF) |
425 | { |
426 | printf (format: "mq_receive on invalid mqd_t did not fail with EBADF: %m\n" ); |
427 | result = 1; |
428 | } |
429 | |
430 | if (mq_send (mqdes: q, msg_ptr: buf, msg_len: 1, msg_prio: 2) == 0) |
431 | { |
432 | puts (s: "mq_send on invalid mqd_t did not fail" ); |
433 | result = 1; |
434 | } |
435 | else if (errno != EBADF) |
436 | { |
437 | printf (format: "mq_send on invalid mqd_t did not fail with EBADF: %m\n" ); |
438 | result = 1; |
439 | } |
440 | |
441 | if (mq_getattr (mqdes: q, mqstat: &attr) == 0) |
442 | { |
443 | puts (s: "mq_getattr on invalid mqd_t did not fail" ); |
444 | result = 1; |
445 | } |
446 | else if (errno != EBADF) |
447 | { |
448 | printf (format: "mq_getattr on invalid mqd_t did not fail with EBADF: %m\n" ); |
449 | result = 1; |
450 | } |
451 | |
452 | memset (&attr, 0, sizeof (attr)); |
453 | if (mq_setattr (q, &attr, NULL) == 0) |
454 | { |
455 | puts (s: "mq_setattr on invalid mqd_t did not fail" ); |
456 | result = 1; |
457 | } |
458 | else if (errno != EBADF) |
459 | { |
460 | printf (format: "mq_setattr on invalid mqd_t did not fail with EBADF: %m\n" ); |
461 | result = 1; |
462 | } |
463 | |
464 | if (mq_unlink (name: "/tst-mqueue2-which-should-never-exist" ) != -1) |
465 | { |
466 | puts (s: "mq_unlink of non-existant message queue unexpectedly succeeded" ); |
467 | result = 1; |
468 | } |
469 | else if (errno != ENOENT) |
470 | { |
471 | printf (format: "mq_unlink of non-existant message queue did not fail with " |
472 | "ENOENT: %m\n" ); |
473 | result = 1; |
474 | } |
475 | return result; |
476 | } |
477 | |
478 | #include "../test-skeleton.c" |
479 | |