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Diffstat (limited to 'src/testing/gnunet-cmds-helper.c')
-rw-r--r-- | src/testing/gnunet-cmds-helper.c | 662 |
1 files changed, 662 insertions, 0 deletions
diff --git a/src/testing/gnunet-cmds-helper.c b/src/testing/gnunet-cmds-helper.c new file mode 100644 index 000000000..d9fcf3541 --- /dev/null +++ b/src/testing/gnunet-cmds-helper.c | |||
@@ -0,0 +1,662 @@ | |||
1 | /* | ||
2 | This file is part of GNUnet | ||
3 | Copyright (C) 2008--2013, 2016 GNUnet e.V. | ||
4 | |||
5 | GNUnet is free software: you can redistribute it and/or modify it | ||
6 | under the terms of the GNU Affero General Public License as published | ||
7 | by the Free Software Foundation, either version 3 of the License, | ||
8 | or (at your option) any later version. | ||
9 | |||
10 | GNUnet 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 | Affero General Public License for more details. | ||
14 | |||
15 | You should have received a copy of the GNU Affero General Public License | ||
16 | along with this program. If not, see <http://www.gnu.org/licenses/>. | ||
17 | |||
18 | SPDX-License-Identifier: AGPL3.0-or-later | ||
19 | */ | ||
20 | |||
21 | /** | ||
22 | * @file testbed/gnunet-cmds-helper.c | ||
23 | * @brief Helper binary that is started from a remote interpreter loop to start | ||
24 | * a local interpreter loop. | ||
25 | * | ||
26 | * This helper monitors for three termination events. They are: (1)The | ||
27 | * stdin of the helper is closed for reading; (2)the helper received | ||
28 | * SIGTERM/SIGINT; (3)the local loop crashed. In case of events 1 and 2 | ||
29 | * the helper kills the interpreter loop. When the interpreter loop | ||
30 | * crashed (event 3), the helper should send a SIGTERM to its own process | ||
31 | * group; this behaviour will help terminate any child processes the loop | ||
32 | * has started and prevents them from leaking and running forever. | ||
33 | * | ||
34 | * @author t3sserakt | ||
35 | * @author Sree Harsha Totakura <sreeharsha@totakura.in> | ||
36 | */ | ||
37 | |||
38 | |||
39 | #include "platform.h" | ||
40 | #include "gnunet_util_lib.h" | ||
41 | #include "gnunet_testing_lib.h" | ||
42 | #include "gnunet_testing_ng_lib.h" | ||
43 | #include "testing_cmds.h" | ||
44 | #include "gnunet_testing_plugin.h" | ||
45 | #include <zlib.h> | ||
46 | |||
47 | |||
48 | /** | ||
49 | * Generic logging shortcut | ||
50 | */ | ||
51 | #define LOG(kind, ...) GNUNET_log (kind, __VA_ARGS__) | ||
52 | |||
53 | /** | ||
54 | * Debug logging shorthand | ||
55 | */ | ||
56 | #define LOG_DEBUG(...) LOG (GNUNET_ERROR_TYPE_DEBUG, __VA_ARGS__) | ||
57 | |||
58 | #define NODE_BASE_IP "192.168.15." | ||
59 | |||
60 | #define ROUTER_BASE_IP "92.68.150." | ||
61 | |||
62 | /** | ||
63 | * Handle for a plugin. | ||
64 | */ | ||
65 | struct Plugin | ||
66 | { | ||
67 | /** | ||
68 | * Name of the shared library. | ||
69 | */ | ||
70 | char *library_name; | ||
71 | |||
72 | /** | ||
73 | * Plugin API. | ||
74 | */ | ||
75 | struct GNUNET_TESTING_PluginFunctions *api; | ||
76 | |||
77 | char *node_ip; | ||
78 | |||
79 | char *plugin_name; | ||
80 | |||
81 | char *global_n; | ||
82 | |||
83 | char *local_m; | ||
84 | |||
85 | char *n; | ||
86 | |||
87 | char *m; | ||
88 | }; | ||
89 | |||
90 | struct NodeIdentifier | ||
91 | { | ||
92 | char *n; | ||
93 | |||
94 | char *m; | ||
95 | |||
96 | char *global_n; | ||
97 | |||
98 | char *local_m; | ||
99 | }; | ||
100 | |||
101 | /** | ||
102 | * Context for a single write on a chunk of memory | ||
103 | */ | ||
104 | struct WriteContext | ||
105 | { | ||
106 | /** | ||
107 | * The data to write | ||
108 | */ | ||
109 | void *data; | ||
110 | |||
111 | /** | ||
112 | * The length of the data | ||
113 | */ | ||
114 | size_t length; | ||
115 | |||
116 | /** | ||
117 | * The current position from where the write operation should begin | ||
118 | */ | ||
119 | size_t pos; | ||
120 | }; | ||
121 | |||
122 | struct Plugin *plugin; | ||
123 | |||
124 | /** | ||
125 | * The process handle to the testbed service | ||
126 | |||
127 | static struct GNUNET_OS_Process *cmd_binary_process;*/ | ||
128 | |||
129 | /** | ||
130 | * Handle to the testing system | ||
131 | */ | ||
132 | static struct GNUNET_TESTING_System *test_system; | ||
133 | |||
134 | /** | ||
135 | * Our message stream tokenizer | ||
136 | */ | ||
137 | struct GNUNET_MessageStreamTokenizer *tokenizer; | ||
138 | |||
139 | /** | ||
140 | * Disk handle from stdin | ||
141 | */ | ||
142 | static struct GNUNET_DISK_FileHandle *stdin_fd; | ||
143 | |||
144 | /** | ||
145 | * Disk handle for stdout | ||
146 | */ | ||
147 | static struct GNUNET_DISK_FileHandle *stdout_fd; | ||
148 | |||
149 | /** | ||
150 | * Pipe used to communicate shutdown via signal. | ||
151 | */ | ||
152 | static struct GNUNET_DISK_PipeHandle *sigpipe; | ||
153 | |||
154 | /** | ||
155 | * Task identifier for the read task | ||
156 | */ | ||
157 | static struct GNUNET_SCHEDULER_Task *read_task_id; | ||
158 | |||
159 | /** | ||
160 | * Task identifier for the write task | ||
161 | */ | ||
162 | static struct GNUNET_SCHEDULER_Task *write_task_id; | ||
163 | |||
164 | /** | ||
165 | * Task to kill the child | ||
166 | */ | ||
167 | static struct GNUNET_SCHEDULER_Task *child_death_task_id; | ||
168 | |||
169 | /** | ||
170 | * Are we done reading messages from stdin? | ||
171 | */ | ||
172 | static int done_reading; | ||
173 | |||
174 | /** | ||
175 | * Result to return in case we fail | ||
176 | */ | ||
177 | static int status; | ||
178 | |||
179 | |||
180 | /** | ||
181 | * Task to shut down cleanly | ||
182 | * | ||
183 | * @param cls NULL | ||
184 | */ | ||
185 | static void | ||
186 | shutdown_task (void *cls) | ||
187 | { | ||
188 | |||
189 | LOG_DEBUG ("Shutting down.\n"); | ||
190 | LOG (GNUNET_ERROR_TYPE_ERROR, | ||
191 | "Shutting down tokenizer!\n"); | ||
192 | |||
193 | if (NULL != read_task_id) | ||
194 | { | ||
195 | GNUNET_SCHEDULER_cancel (read_task_id); | ||
196 | read_task_id = NULL; | ||
197 | } | ||
198 | if (NULL != write_task_id) | ||
199 | { | ||
200 | struct WriteContext *wc; | ||
201 | |||
202 | wc = GNUNET_SCHEDULER_cancel (write_task_id); | ||
203 | write_task_id = NULL; | ||
204 | GNUNET_free (wc->data); | ||
205 | GNUNET_free (wc); | ||
206 | } | ||
207 | if (NULL != child_death_task_id) | ||
208 | { | ||
209 | GNUNET_SCHEDULER_cancel (child_death_task_id); | ||
210 | child_death_task_id = NULL; | ||
211 | } | ||
212 | if (NULL != stdin_fd) | ||
213 | (void) GNUNET_DISK_file_close (stdin_fd); | ||
214 | if (NULL != stdout_fd) | ||
215 | (void) GNUNET_DISK_file_close (stdout_fd); | ||
216 | GNUNET_MST_destroy (tokenizer); | ||
217 | tokenizer = NULL; | ||
218 | |||
219 | if (NULL != test_system) | ||
220 | { | ||
221 | GNUNET_TESTING_system_destroy (test_system, GNUNET_YES); | ||
222 | test_system = NULL; | ||
223 | } | ||
224 | } | ||
225 | |||
226 | |||
227 | /** | ||
228 | * Task to write to the standard out | ||
229 | * | ||
230 | * @param cls the WriteContext | ||
231 | */ | ||
232 | static void | ||
233 | write_task (void *cls) | ||
234 | { | ||
235 | struct WriteContext *wc = cls; | ||
236 | ssize_t bytes_wrote; | ||
237 | |||
238 | LOG (GNUNET_ERROR_TYPE_ERROR, | ||
239 | "Writing data!\n"); | ||
240 | |||
241 | GNUNET_assert (NULL != wc); | ||
242 | write_task_id = NULL; | ||
243 | bytes_wrote = GNUNET_DISK_file_write (stdout_fd, | ||
244 | wc->data + wc->pos, | ||
245 | wc->length - wc->pos); | ||
246 | if (GNUNET_SYSERR == bytes_wrote) | ||
247 | { | ||
248 | LOG (GNUNET_ERROR_TYPE_WARNING, | ||
249 | "Cannot reply back successful initialization\n"); | ||
250 | GNUNET_free (wc->data); | ||
251 | GNUNET_free (wc); | ||
252 | return; | ||
253 | } | ||
254 | wc->pos += bytes_wrote; | ||
255 | if (wc->pos == wc->length) | ||
256 | { | ||
257 | GNUNET_free (wc->data); | ||
258 | GNUNET_free (wc); | ||
259 | LOG (GNUNET_ERROR_TYPE_ERROR, | ||
260 | "Written successfully!\n"); | ||
261 | return; | ||
262 | } | ||
263 | LOG (GNUNET_ERROR_TYPE_ERROR, | ||
264 | "Written data!\n"); | ||
265 | write_task_id = GNUNET_SCHEDULER_add_write_file (GNUNET_TIME_UNIT_FOREVER_REL, | ||
266 | stdout_fd, | ||
267 | &write_task, | ||
268 | wc); | ||
269 | } | ||
270 | |||
271 | |||
272 | /** | ||
273 | * Task triggered whenever we receive a SIGCHLD (child | ||
274 | * process died). | ||
275 | * | ||
276 | * @param cls closure, NULL if we need to self-restart | ||
277 | */ | ||
278 | /*static void | ||
279 | child_death_task (void *cls) | ||
280 | { | ||
281 | const struct GNUNET_DISK_FileHandle *pr; | ||
282 | char c[16]; | ||
283 | |||
284 | pr = GNUNET_DISK_pipe_handle (sigpipe, GNUNET_DISK_PIPE_END_READ); | ||
285 | child_death_task_id = NULL; | ||
286 | // consume the signal | ||
287 | GNUNET_break (0 < GNUNET_DISK_file_read (pr, &c, sizeof(c))); | ||
288 | LOG_DEBUG ("Got SIGCHLD\n"); | ||
289 | |||
290 | LOG_DEBUG ("Child hasn't died. Resuming to monitor its status\n"); | ||
291 | child_death_task_id = | ||
292 | GNUNET_SCHEDULER_add_read_file (GNUNET_TIME_UNIT_FOREVER_REL, | ||
293 | pr, | ||
294 | &child_death_task, | ||
295 | NULL); | ||
296 | }*/ | ||
297 | |||
298 | |||
299 | static void | ||
300 | write_message (struct GNUNET_MessageHeader *message, size_t msg_length) | ||
301 | { | ||
302 | struct WriteContext *wc; | ||
303 | |||
304 | LOG (GNUNET_ERROR_TYPE_ERROR, | ||
305 | "enter write_message!\n"); | ||
306 | wc = GNUNET_new (struct WriteContext); | ||
307 | wc->length = msg_length; | ||
308 | wc->data = message; | ||
309 | write_task_id = GNUNET_SCHEDULER_add_write_file ( | ||
310 | GNUNET_TIME_UNIT_FOREVER_REL, | ||
311 | stdout_fd, | ||
312 | &write_task, | ||
313 | wc); | ||
314 | LOG (GNUNET_ERROR_TYPE_ERROR, | ||
315 | "leave write_message!\n"); | ||
316 | } | ||
317 | |||
318 | |||
319 | /** | ||
320 | * Function to run the test cases. | ||
321 | * | ||
322 | * @param cls plugin to use. | ||
323 | * | ||
324 | */ | ||
325 | /*static void | ||
326 | run_plugin (void *cls) | ||
327 | { | ||
328 | struct Plugin *plugin = cls; | ||
329 | char *router_ip; | ||
330 | char *node_ip; | ||
331 | |||
332 | router_ip = GNUNET_malloc (strlen (ROUTER_BASE_IP) + strlen (plugin->m) + 1); | ||
333 | strcpy (router_ip, ROUTER_BASE_IP); | ||
334 | strcat (router_ip, plugin->m); | ||
335 | |||
336 | node_ip = GNUNET_malloc (strlen (NODE_BASE_IP) + strlen (plugin->n) + 1); | ||
337 | strcat (node_ip, NODE_BASE_IP); | ||
338 | strcat (node_ip, plugin->n); | ||
339 | |||
340 | plugin->api->start_testcase (&write_message, router_ip, node_ip); | ||
341 | |||
342 | }*/ | ||
343 | |||
344 | |||
345 | /** | ||
346 | * Functions with this signature are called whenever a | ||
347 | * complete message is received by the tokenizer. | ||
348 | * | ||
349 | * Do not call #GNUNET_mst_destroy() in this callback | ||
350 | * | ||
351 | * @param cls identification of the client | ||
352 | * @param message the actual message | ||
353 | * @return #GNUNET_OK on success, | ||
354 | * #GNUNET_NO to stop further processing (no error) | ||
355 | * #GNUNET_SYSERR to stop further processing with error | ||
356 | */ | ||
357 | static int | ||
358 | tokenizer_cb (void *cls, const struct GNUNET_MessageHeader *message) | ||
359 | { | ||
360 | struct NodeIdentifier *ni = cls; | ||
361 | const struct GNUNET_CMDS_HelperInit *msg; | ||
362 | struct GNUNET_CMDS_HelperReply *reply; | ||
363 | char *binary; | ||
364 | char *plugin_name; | ||
365 | size_t plugin_name_size; | ||
366 | uint16_t msize; | ||
367 | size_t msg_length; | ||
368 | char *router_ip; | ||
369 | char *node_ip; | ||
370 | |||
371 | LOG (GNUNET_ERROR_TYPE_ERROR, | ||
372 | "tokenizer \n"); | ||
373 | |||
374 | msize = ntohs (message->size); | ||
375 | if (GNUNET_MESSAGE_TYPE_CMDS_HELPER_INIT == ntohs (message->type)) | ||
376 | { | ||
377 | msg = (const struct GNUNET_CMDS_HelperInit *) message; | ||
378 | plugin_name_size = ntohs (msg->plugin_name_size); | ||
379 | if ((sizeof(struct GNUNET_CMDS_HelperInit) + plugin_name_size) > msize) | ||
380 | { | ||
381 | GNUNET_break (0); | ||
382 | LOG (GNUNET_ERROR_TYPE_WARNING, | ||
383 | "Received unexpected message -- exiting\n"); | ||
384 | goto error; | ||
385 | } | ||
386 | plugin_name = GNUNET_malloc (plugin_name_size + 1); | ||
387 | GNUNET_strlcpy (plugin_name, | ||
388 | ((char *) &msg[1]), | ||
389 | plugin_name_size + 1); | ||
390 | |||
391 | binary = GNUNET_OS_get_libexec_binary_path ("gnunet-cmd"); | ||
392 | |||
393 | LOG (GNUNET_ERROR_TYPE_ERROR, | ||
394 | "plugin_name: %s \n", | ||
395 | plugin_name); | ||
396 | |||
397 | // cmd_binary_process = GNUNET_OS_start_process ( | ||
398 | /*GNUNET_OS_INHERIT_STD_ERR verbose? , | ||
399 | NULL, | ||
400 | NULL, | ||
401 | NULL, | ||
402 | binary, | ||
403 | plugin_name, | ||
404 | ni->global_n, | ||
405 | ni->local_m, | ||
406 | ni->n, | ||
407 | ni->m, | ||
408 | NULL);*/ | ||
409 | |||
410 | plugin = GNUNET_new (struct Plugin); | ||
411 | plugin->api = GNUNET_PLUGIN_load (plugin_name, | ||
412 | NULL); | ||
413 | plugin->library_name = GNUNET_strdup (basename (plugin_name)); | ||
414 | |||
415 | plugin->global_n = ni->global_n; | ||
416 | plugin->local_m = ni->local_m; | ||
417 | plugin->n = ni->n; | ||
418 | plugin->m = ni->m; | ||
419 | |||
420 | router_ip = GNUNET_malloc (strlen (ROUTER_BASE_IP) + strlen (plugin->m) | ||
421 | + 1); | ||
422 | strcpy (router_ip, ROUTER_BASE_IP); | ||
423 | strcat (router_ip, plugin->m); | ||
424 | |||
425 | node_ip = GNUNET_malloc (strlen (NODE_BASE_IP) + strlen (plugin->n) + 1); | ||
426 | strcat (node_ip, NODE_BASE_IP); | ||
427 | strcat (node_ip, plugin->n); | ||
428 | |||
429 | plugin->api->start_testcase (&write_message, router_ip, node_ip, plugin->m, | ||
430 | plugin->n, plugin->local_m); | ||
431 | |||
432 | LOG (GNUNET_ERROR_TYPE_ERROR, | ||
433 | "We got here!\n"); | ||
434 | |||
435 | /*if (NULL == cmd_binary_process) | ||
436 | { | ||
437 | LOG (GNUNET_ERROR_TYPE_ERROR, | ||
438 | "Starting plugin failed!\n"); | ||
439 | return GNUNET_SYSERR; | ||
440 | }*/ | ||
441 | |||
442 | LOG (GNUNET_ERROR_TYPE_ERROR, | ||
443 | "We got here 2!\n"); | ||
444 | |||
445 | LOG (GNUNET_ERROR_TYPE_ERROR, | ||
446 | "global_n: %s local_n: %s n: %s m: %s.\n", | ||
447 | ni->global_n, | ||
448 | ni->local_m, | ||
449 | ni->n, | ||
450 | ni->m); | ||
451 | |||
452 | LOG (GNUNET_ERROR_TYPE_ERROR, | ||
453 | "We got here 3!\n"); | ||
454 | |||
455 | GNUNET_free (binary); | ||
456 | |||
457 | // done_reading = GNUNET_YES; | ||
458 | |||
459 | msg_length = sizeof(struct GNUNET_CMDS_HelperReply); | ||
460 | reply = GNUNET_new (struct GNUNET_CMDS_HelperReply); | ||
461 | reply->header.type = htons (GNUNET_MESSAGE_TYPE_CMDS_HELPER_REPLY); | ||
462 | reply->header.size = htons ((uint16_t) msg_length); | ||
463 | |||
464 | LOG (GNUNET_ERROR_TYPE_ERROR, | ||
465 | "We got here 4!\n"); | ||
466 | |||
467 | write_message ((struct GNUNET_MessageHeader *) reply, msg_length); | ||
468 | |||
469 | LOG (GNUNET_ERROR_TYPE_ERROR, | ||
470 | "We got here 5!\n"); | ||
471 | |||
472 | /*child_death_task_id = GNUNET_SCHEDULER_add_read_file ( | ||
473 | GNUNET_TIME_UNIT_FOREVER_REL, | ||
474 | GNUNET_DISK_pipe_handle (sigpipe, GNUNET_DISK_PIPE_END_READ), | ||
475 | &child_death_task, | ||
476 | NULL);*/ | ||
477 | return GNUNET_OK; | ||
478 | } | ||
479 | else if (GNUNET_MESSAGE_TYPE_CMDS_HELPER_ALL_PEERS_STARTED == ntohs ( | ||
480 | message->type)) | ||
481 | { | ||
482 | plugin->api->all_peers_started (); | ||
483 | return GNUNET_OK; | ||
484 | } | ||
485 | else | ||
486 | { | ||
487 | LOG (GNUNET_ERROR_TYPE_WARNING, "Received unexpected message -- exiting\n"); | ||
488 | goto error; | ||
489 | } | ||
490 | |||
491 | |||
492 | error: | ||
493 | status = GNUNET_SYSERR; | ||
494 | LOG (GNUNET_ERROR_TYPE_ERROR, | ||
495 | "tokenizer shutting down!\n"); | ||
496 | GNUNET_SCHEDULER_shutdown (); | ||
497 | return GNUNET_SYSERR; | ||
498 | } | ||
499 | |||
500 | |||
501 | /** | ||
502 | * Task to read from stdin | ||
503 | * | ||
504 | * @param cls NULL | ||
505 | */ | ||
506 | static void | ||
507 | read_task (void *cls) | ||
508 | { | ||
509 | char buf[GNUNET_MAX_MESSAGE_SIZE]; | ||
510 | ssize_t sread; | ||
511 | |||
512 | read_task_id = NULL; | ||
513 | sread = GNUNET_DISK_file_read (stdin_fd, buf, sizeof(buf)); | ||
514 | if ((GNUNET_SYSERR == sread) || (0 == sread)) | ||
515 | { | ||
516 | LOG_DEBUG ("STDIN closed\n"); | ||
517 | LOG (GNUNET_ERROR_TYPE_ERROR, | ||
518 | "tokenizer shutting down during reading!\n"); | ||
519 | GNUNET_SCHEDULER_shutdown (); | ||
520 | return; | ||
521 | } | ||
522 | if (GNUNET_YES == done_reading) | ||
523 | { | ||
524 | /* didn't expect any more data! */ | ||
525 | GNUNET_break_op (0); | ||
526 | LOG (GNUNET_ERROR_TYPE_ERROR, | ||
527 | "tokenizer shutting down during reading, didn't expect any more data!\n"); | ||
528 | GNUNET_SCHEDULER_shutdown (); | ||
529 | return; | ||
530 | } | ||
531 | LOG_DEBUG ("Read %u bytes\n", (unsigned int) sread); | ||
532 | LOG (GNUNET_ERROR_TYPE_ERROR, | ||
533 | "Read %u bytes\n", (unsigned int) sread); | ||
534 | /* FIXME: could introduce a GNUNET_MST_read2 to read | ||
535 | directly from 'stdin_fd' and save a memcpy() here */ | ||
536 | if (GNUNET_OK != | ||
537 | GNUNET_MST_from_buffer (tokenizer, buf, sread, GNUNET_NO, GNUNET_NO)) | ||
538 | { | ||
539 | GNUNET_break (0); | ||
540 | LOG (GNUNET_ERROR_TYPE_ERROR, | ||
541 | "tokenizer shutting down during reading, writing to buffer failed!\n"); | ||
542 | GNUNET_SCHEDULER_shutdown (); | ||
543 | return; | ||
544 | } | ||
545 | read_task_id /* No timeout while reading */ | ||
546 | = GNUNET_SCHEDULER_add_read_file (GNUNET_TIME_UNIT_FOREVER_REL, | ||
547 | stdin_fd, | ||
548 | &read_task, | ||
549 | NULL); | ||
550 | } | ||
551 | |||
552 | |||
553 | /** | ||
554 | * Main function that will be run. | ||
555 | * | ||
556 | * @param cls closure | ||
557 | * @param args remaining command-line arguments | ||
558 | * @param cfgfile name of the configuration file used (for saving, can be NULL!) | ||
559 | * @param cfg configuration | ||
560 | */ | ||
561 | static void | ||
562 | run (void *cls, | ||
563 | char *const *args, | ||
564 | const char *cfgfile, | ||
565 | const struct GNUNET_CONFIGURATION_Handle *cfg) | ||
566 | { | ||
567 | struct NodeIdentifier *ni = cls; | ||
568 | |||
569 | LOG_DEBUG ("Starting interpreter loop helper...\n"); | ||
570 | |||
571 | tokenizer = GNUNET_MST_create (&tokenizer_cb, ni); | ||
572 | stdin_fd = GNUNET_DISK_get_handle_from_native (stdin); | ||
573 | stdout_fd = GNUNET_DISK_get_handle_from_native (stdout); | ||
574 | read_task_id = GNUNET_SCHEDULER_add_read_file (GNUNET_TIME_UNIT_FOREVER_REL, | ||
575 | stdin_fd, | ||
576 | &read_task, | ||
577 | NULL); | ||
578 | GNUNET_SCHEDULER_add_shutdown (&shutdown_task, NULL); | ||
579 | } | ||
580 | |||
581 | |||
582 | /** | ||
583 | * Signal handler called for SIGCHLD. | ||
584 | */ | ||
585 | static void | ||
586 | sighandler_child_death () | ||
587 | { | ||
588 | static char c; | ||
589 | int old_errno; /* back-up errno */ | ||
590 | |||
591 | old_errno = errno; | ||
592 | GNUNET_break ( | ||
593 | 1 == | ||
594 | GNUNET_DISK_file_write (GNUNET_DISK_pipe_handle (sigpipe, | ||
595 | GNUNET_DISK_PIPE_END_WRITE), | ||
596 | &c, | ||
597 | sizeof(c))); | ||
598 | errno = old_errno; | ||
599 | } | ||
600 | |||
601 | |||
602 | /** | ||
603 | * Main function | ||
604 | * | ||
605 | * @param argc the number of command line arguments | ||
606 | * @param argv command line arg array | ||
607 | * @return return code | ||
608 | */ | ||
609 | int | ||
610 | main (int argc, char **argv) | ||
611 | { | ||
612 | struct NodeIdentifier *ni; | ||
613 | struct GNUNET_SIGNAL_Context *shc_chld; | ||
614 | struct GNUNET_GETOPT_CommandLineOption options[] = | ||
615 | { GNUNET_GETOPT_OPTION_END }; | ||
616 | int ret; | ||
617 | |||
618 | GNUNET_log_setup ("gnunet-cmds-helper", | ||
619 | "DEBUG", | ||
620 | NULL); | ||
621 | ni = GNUNET_new (struct NodeIdentifier); | ||
622 | ni->global_n = argv[1]; | ||
623 | ni->local_m = argv[2]; | ||
624 | ni->n = argv[3]; | ||
625 | ni->m = argv[4]; | ||
626 | |||
627 | LOG (GNUNET_ERROR_TYPE_ERROR, | ||
628 | "global_n: %s local_n: %s n: %s m: %s.\n", | ||
629 | ni->global_n, | ||
630 | ni->local_m, | ||
631 | ni->n, | ||
632 | ni->m); | ||
633 | |||
634 | status = GNUNET_OK; | ||
635 | if (NULL == | ||
636 | (sigpipe = GNUNET_DISK_pipe (GNUNET_DISK_PF_NONE))) | ||
637 | { | ||
638 | GNUNET_break (0); | ||
639 | return 1; | ||
640 | } | ||
641 | shc_chld = | ||
642 | GNUNET_SIGNAL_handler_install (GNUNET_SIGCHLD, &sighandler_child_death); | ||
643 | ret = GNUNET_PROGRAM_run (argc, | ||
644 | argv, | ||
645 | "gnunet-cmds-helper", | ||
646 | "Helper for starting a local interpreter loop", | ||
647 | options, | ||
648 | &run, | ||
649 | ni); | ||
650 | LOG (GNUNET_ERROR_TYPE_ERROR, | ||
651 | "run finished\n"); | ||
652 | GNUNET_SIGNAL_handler_uninstall (shc_chld); | ||
653 | shc_chld = NULL; | ||
654 | GNUNET_DISK_pipe_close (sigpipe); | ||
655 | GNUNET_free (ni); | ||
656 | if (GNUNET_OK != ret) | ||
657 | return 1; | ||
658 | return (GNUNET_OK == status) ? 0 : 1; | ||
659 | } | ||
660 | |||
661 | |||
662 | /* end of gnunet-cmds-helper.c */ | ||