src/libsystemd/sd-bus/test-bus-objects.c

   1 /***
   2   This file is part of systemd.
   3
   4   Copyright 2013 Lennart Poettering
   5
   6   systemd is free software; you can redistribute it and/or modify it
   7   under the terms of the GNU Lesser General Public License as published by
   8   the Free Software Foundation; either version 2.1 of the License, or
   9   (at your option) any later version.
  10
  11   systemd is distributed in the hope that it will be useful, but
  12   WITHOUT ANY WARRANTY; without even the implied warranty of
  13   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  14   Lesser General Public License for more details.
  15
  16   You should have received a copy of the GNU Lesser General Public License
  17   along with systemd; If not, see <http://www.gnu.org/licenses/>.
  18 ***/
  19
  20 #include <pthread.h>
  21 #include <stdlib.h>
  22
  23 #include "sd-bus.h"
  24
  25 #include "alloc-util.h"
  26 #include "bus-dump.h"
  27 #include "bus-internal.h"
  28 #include "bus-message.h"
  29 #include "bus-util.h"
  30 #include "log.h"
  31 #include "macro.h"
  32 #include "strv.h"
  33 #include "util.h"
  34
  35 struct context {
  36         int fds[2];
  37         bool quit;
  38         char *something;
  39         char *automatic_string_property;
  40         uint32_t automatic_integer_property;
  41 };
  42
  43 static int something_handler(sd_bus_message *m, void *userdata, sd_bus_error *error) {
  44         struct context *c = userdata;
  45         const char *s;
  46         char *n = NULL;
  47         int r;
  48
  49         r = sd_bus_message_read(m, "s", &s);
  50         assert_se(r > 0);
  51
  52         n = strjoin("<<<", s, ">>>", NULL);
  53         assert_se(n);
  54
  55         free(c->something);
  56         c->something = n;
  57
  58         log_info("AlterSomething() called, got %s, returning %s", s, n);
  59
  60         /* This should fail, since the return type doesn't match */
  61         assert_se(sd_bus_reply_method_return(m, "u", 4711) == -ENOMSG);
  62
  63         r = sd_bus_reply_method_return(m, "s", n);
  64         assert_se(r >= 0);
  65
  66         return 1;
  67 }
  68
  69 static int exit_handler(sd_bus_message *m, void *userdata, sd_bus_error *error) {
  70         struct context *c = userdata;
  71         int r;
  72
  73         c->quit = true;
  74
  75         log_info("Exit called");
  76
  77         r = sd_bus_reply_method_return(m, "");
  78         assert_se(r >= 0);
  79
  80         return 1;
  81 }
  82
  83 static int get_handler(sd_bus *bus, const char *path, const char *interface, const char *property, sd_bus_message *reply, void *userdata, sd_bus_error *error) {
  84         struct context *c = userdata;
  85         int r;
  86
  87         log_info("property get for %s called, returning \"%s\".", property, c->something);
  88
  89         r = sd_bus_message_append(reply, "s", c->something);
  90         assert_se(r >= 0);
  91
  92         return 1;
  93 }
  94
  95 static int set_handler(sd_bus *bus, const char *path, const char *interface, const char *property, sd_bus_message *value, void *userdata, sd_bus_error *error) {
  96         struct context *c = userdata;
  97         const char *s;
  98         char *n;
  99         int r;
 100
 101         log_info("property set for %s called", property);
 102
 103         r = sd_bus_message_read(value, "s", &s);
 104         assert_se(r >= 0);
 105
 106         n = strdup(s);
 107         assert_se(n);
 108
 109         free(c->something);
 110         c->something = n;
 111
 112         return 1;
 113 }
 114
 115 static int value_handler(sd_bus *bus, const char *path, const char *interface, const char *property, sd_bus_message *reply, void *userdata, sd_bus_error *error) {
 116         _cleanup_free_ char *s = NULL;
 117         const char *x;
 118         int r;
 119
 120         assert_se(asprintf(&s, "object %p, path %s", userdata, path) >= 0);
 121         r = sd_bus_message_append(reply, "s", s);
 122         assert_se(r >= 0);
 123
 124         assert_se(x = startswith(path, "/value/"));
 125
 126         assert_se(PTR_TO_UINT(userdata) == 30);
 127
 128         return 1;
 129 }
 130
 131 static int notify_test(sd_bus_message *m, void *userdata, sd_bus_error *error) {
 132         int r;
 133
 134         assert_se(sd_bus_emit_properties_changed(sd_bus_message_get_bus(m), m->path, "org.freedesktop.systemd.ValueTest", "Value", NULL) >= 0);
 135
 136         r = sd_bus_reply_method_return(m, NULL);
 137         assert_se(r >= 0);
 138
 139         return 1;
 140 }
 141
 142 static int notify_test2(sd_bus_message *m, void *userdata, sd_bus_error *error) {
 143         int r;
 144
 145         assert_se(sd_bus_emit_properties_changed_strv(sd_bus_message_get_bus(m), m->path, "org.freedesktop.systemd.ValueTest", NULL) >= 0);
 146
 147         r = sd_bus_reply_method_return(m, NULL);
 148         assert_se(r >= 0);
 149
 150         return 1;
 151 }
 152
 153 static int emit_interfaces_added(sd_bus_message *m, void *userdata, sd_bus_error *error) {
 154         int r;
 155
 156         assert_se(sd_bus_emit_interfaces_added(sd_bus_message_get_bus(m), "/value/a/x", "org.freedesktop.systemd.ValueTest", NULL) >= 0);
 157
 158         r = sd_bus_reply_method_return(m, NULL);
 159         assert_se(r >= 0);
 160
 161         return 1;
 162 }
 163
 164 static int emit_interfaces_removed(sd_bus_message *m, void *userdata, sd_bus_error *error) {
 165         int r;
 166
 167         assert_se(sd_bus_emit_interfaces_removed(sd_bus_message_get_bus(m), "/value/a/x", "org.freedesktop.systemd.ValueTest", NULL) >= 0);
 168
 169         r = sd_bus_reply_method_return(m, NULL);
 170         assert_se(r >= 0);
 171
 172         return 1;
 173 }
 174
 175 static int emit_object_added(sd_bus_message *m, void *userdata, sd_bus_error *error) {
 176         int r;
 177
 178         assert_se(sd_bus_emit_object_added(sd_bus_message_get_bus(m), "/value/a/x") >= 0);
 179
 180         r = sd_bus_reply_method_return(m, NULL);
 181         assert_se(r >= 0);
 182
 183         return 1;
 184 }
 185
 186 static int emit_object_removed(sd_bus_message *m, void *userdata, sd_bus_error *error) {
 187         int r;
 188
 189         assert_se(sd_bus_emit_object_removed(sd_bus_message_get_bus(m), "/value/a/x") >= 0);
 190
 191         r = sd_bus_reply_method_return(m, NULL);
 192         assert_se(r >= 0);
 193
 194         return 1;
 195 }
 196
 197 static const sd_bus_vtable vtable[] = {
 198         SD_BUS_VTABLE_START(0),
 199         SD_BUS_METHOD("AlterSomething", "s", "s", something_handler, 0),
 200         SD_BUS_METHOD("Exit", "", "", exit_handler, 0),
 201         SD_BUS_WRITABLE_PROPERTY("Something", "s", get_handler, set_handler, 0, 0),
 202         SD_BUS_WRITABLE_PROPERTY("AutomaticStringProperty", "s", NULL, NULL, offsetof(struct context, automatic_string_property), 0),
 203         SD_BUS_WRITABLE_PROPERTY("AutomaticIntegerProperty", "u", NULL, NULL, offsetof(struct context, automatic_integer_property), 0),
 204         SD_BUS_METHOD("NoOperation", NULL, NULL, NULL, 0),
 205         SD_BUS_METHOD("EmitInterfacesAdded", NULL, NULL, emit_interfaces_added, 0),
 206         SD_BUS_METHOD("EmitInterfacesRemoved", NULL, NULL, emit_interfaces_removed, 0),
 207         SD_BUS_METHOD("EmitObjectAdded", NULL, NULL, emit_object_added, 0),
 208         SD_BUS_METHOD("EmitObjectRemoved", NULL, NULL, emit_object_removed, 0),
 209         SD_BUS_VTABLE_END
 210 };
 211
 212 static const sd_bus_vtable vtable2[] = {
 213         SD_BUS_VTABLE_START(0),
 214         SD_BUS_METHOD("NotifyTest", "", "", notify_test, 0),
 215         SD_BUS_METHOD("NotifyTest2", "", "", notify_test2, 0),
 216         SD_BUS_PROPERTY("Value", "s", value_handler, 10, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
 217         SD_BUS_PROPERTY("Value2", "s", value_handler, 10, SD_BUS_VTABLE_PROPERTY_EMITS_INVALIDATION),
 218         SD_BUS_PROPERTY("Value3", "s", value_handler, 10, SD_BUS_VTABLE_PROPERTY_CONST),
 219         SD_BUS_PROPERTY("Value4", "s", value_handler, 10, 0),
 220         SD_BUS_PROPERTY("AnExplicitProperty", "s", NULL, offsetof(struct context, something), SD_BUS_VTABLE_PROPERTY_EXPLICIT|SD_BUS_VTABLE_PROPERTY_EMITS_INVALIDATION),
 221         SD_BUS_VTABLE_END
 222 };
 223
 224 static int enumerator_callback(sd_bus *bus, const char *path, void *userdata, char ***nodes, sd_bus_error *error) {
 225
 226         if (object_path_startswith("/value", path))
 227                 assert_se(*nodes = strv_new("/value/a", "/value/b", "/value/c", NULL));
 228
 229         return 1;
 230 }
 231
 232 static int enumerator2_callback(sd_bus *bus, const char *path, void *userdata, char ***nodes, sd_bus_error *error) {
 233
 234         if (object_path_startswith("/value/a", path))
 235                 assert_se(*nodes = strv_new("/value/a/x", "/value/a/y", "/value/a/z", NULL));
 236
 237         return 1;
 238 }
 239
 240 static void *server(void *p) {
 241         struct context *c = p;
 242         sd_bus *bus = NULL;
 243         sd_id128_t id;
 244         int r;
 245
 246         c->quit = false;
 247
 248         assert_se(sd_id128_randomize(&id) >= 0);
 249
 250         assert_se(sd_bus_new(&bus) >= 0);
 251         assert_se(sd_bus_set_fd(bus, c->fds[0], c->fds[0]) >= 0);
 252         assert_se(sd_bus_set_server(bus, 1, id) >= 0);
 253
 254         assert_se(sd_bus_add_object_vtable(bus, NULL, "/foo", "org.freedesktop.systemd.test", vtable, c) >= 0);
 255         assert_se(sd_bus_add_object_vtable(bus, NULL, "/foo", "org.freedesktop.systemd.test2", vtable, c) >= 0);
 256         assert_se(sd_bus_add_fallback_vtable(bus, NULL, "/value", "org.freedesktop.systemd.ValueTest", vtable2, NULL, UINT_TO_PTR(20)) >= 0);
 257         assert_se(sd_bus_add_node_enumerator(bus, NULL, "/value", enumerator_callback, NULL) >= 0);
 258         assert_se(sd_bus_add_node_enumerator(bus, NULL, "/value/a", enumerator2_callback, NULL) >= 0);
 259         assert_se(sd_bus_add_object_manager(bus, NULL, "/value") >= 0);
 260         assert_se(sd_bus_add_object_manager(bus, NULL, "/value/a") >= 0);
 261
 262         assert_se(sd_bus_start(bus) >= 0);
 263
 264         log_error("Entering event loop on server");
 265
 266         while (!c->quit) {
 267                 log_error("Loop!");
 268
 269                 r = sd_bus_process(bus, NULL);
 270                 if (r < 0) {
 271                         log_error_errno(r, "Failed to process requests: %m");
 272                         goto fail;
 273                 }
 274
 275                 if (r == 0) {
 276                         r = sd_bus_wait(bus, (uint64_t) -1);
 277                         if (r < 0) {
 278                                 log_error_errno(r, "Failed to wait: %m");
 279                                 goto fail;
 280                         }
 281
 282                         continue;
 283                 }
 284         }
 285
 286         r = 0;
 287
 288 fail:
 289         if (bus) {
 290                 sd_bus_flush(bus);
 291                 sd_bus_unref(bus);
 292         }
 293
 294         return INT_TO_PTR(r);
 295 }
 296
 297 static int client(struct context *c) {
 298         _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
 299         _cleanup_(sd_bus_unrefp) sd_bus *bus = NULL;
 300         _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
 301         const char *s;
 302         int r;
 303
 304         assert_se(sd_bus_new(&bus) >= 0);
 305         assert_se(sd_bus_set_fd(bus, c->fds[1], c->fds[1]) >= 0);
 306         assert_se(sd_bus_start(bus) >= 0);
 307
 308         r = sd_bus_call_method(bus, "org.freedesktop.systemd.test", "/foo", "org.freedesktop.systemd.test", "NoOperation", &error, NULL, NULL);
 309         assert_se(r >= 0);
 310
 311         r = sd_bus_call_method(bus, "org.freedesktop.systemd.test", "/foo", "org.freedesktop.systemd.test", "AlterSomething", &error, &reply, "s", "hallo");
 312         assert_se(r >= 0);
 313
 314         r = sd_bus_message_read(reply, "s", &s);
 315         assert_se(r >= 0);
 316         assert_se(streq(s, "<<<hallo>>>"));
 317
 318         sd_bus_message_unref(reply);
 319         reply = NULL;
 320
 321         r = sd_bus_call_method(bus, "org.freedesktop.systemd.test", "/foo", "org.freedesktop.systemd.test", "Doesntexist", &error, &reply, "");
 322         assert_se(r < 0);
 323         assert_se(sd_bus_error_has_name(&error, SD_BUS_ERROR_UNKNOWN_METHOD));
 324
 325         sd_bus_error_free(&error);
 326
 327         r = sd_bus_call_method(bus, "org.freedesktop.systemd.test", "/foo", "org.freedesktop.systemd.test", "AlterSomething", &error, &reply, "as", 1, "hallo");
 328         assert_se(r < 0);
 329         assert_se(sd_bus_error_has_name(&error, SD_BUS_ERROR_INVALID_ARGS));
 330
 331         sd_bus_error_free(&error);
 332
 333         r = sd_bus_get_property(bus, "org.freedesktop.systemd.test", "/foo", "org.freedesktop.systemd.test", "Something", &error, &reply, "s");
 334         assert_se(r >= 0);
 335
 336         r = sd_bus_message_read(reply, "s", &s);
 337         assert_se(r >= 0);
 338         assert_se(streq(s, "<<<hallo>>>"));
 339
 340         sd_bus_message_unref(reply);
 341         reply = NULL;
 342
 343         r = sd_bus_set_property(bus, "org.freedesktop.systemd.test", "/foo", "org.freedesktop.systemd.test", "Something", &error, "s", "test");
 344         assert_se(r >= 0);
 345
 346         r = sd_bus_get_property(bus, "org.freedesktop.systemd.test", "/foo", "org.freedesktop.systemd.test", "Something", &error, &reply, "s");
 347         assert_se(r >= 0);
 348
 349         r = sd_bus_message_read(reply, "s", &s);
 350         assert_se(r >= 0);
 351         assert_se(streq(s, "test"));
 352
 353         sd_bus_message_unref(reply);
 354         reply = NULL;
 355
 356         r = sd_bus_set_property(bus, "org.freedesktop.systemd.test", "/foo", "org.freedesktop.systemd.test", "AutomaticIntegerProperty", &error, "u", 815);
 357         assert_se(r >= 0);
 358
 359         assert_se(c->automatic_integer_property == 815);
 360
 361         r = sd_bus_set_property(bus, "org.freedesktop.systemd.test", "/foo", "org.freedesktop.systemd.test", "AutomaticStringProperty", &error, "s", "Du Dödel, Du!");
 362         assert_se(r >= 0);
 363
 364         assert_se(streq(c->automatic_string_property, "Du Dödel, Du!"));
 365
 366         r = sd_bus_call_method(bus, "org.freedesktop.systemd.test", "/foo", "org.freedesktop.DBus.Introspectable", "Introspect", &error, &reply, "");
 367         assert_se(r >= 0);
 368
 369         r = sd_bus_message_read(reply, "s", &s);
 370         assert_se(r >= 0);
 371         fputs(s, stdout);
 372
 373         sd_bus_message_unref(reply);
 374         reply = NULL;
 375
 376         r = sd_bus_get_property(bus, "org.freedesktop.systemd.test", "/value/xuzz", "org.freedesktop.systemd.ValueTest", "Value", &error, &reply, "s");
 377         assert_se(r >= 0);
 378
 379         r = sd_bus_message_read(reply, "s", &s);
 380         assert_se(r >= 0);
 381         log_info("read %s", s);
 382
 383         sd_bus_message_unref(reply);
 384         reply = NULL;
 385
 386         r = sd_bus_call_method(bus, "org.freedesktop.systemd.test", "/", "org.freedesktop.DBus.Introspectable", "Introspect", &error, &reply, "");
 387         assert_se(r >= 0);
 388
 389         r = sd_bus_message_read(reply, "s", &s);
 390         assert_se(r >= 0);
 391         fputs(s, stdout);
 392
 393         sd_bus_message_unref(reply);
 394         reply = NULL;
 395
 396         r = sd_bus_call_method(bus, "org.freedesktop.systemd.test", "/value", "org.freedesktop.DBus.Introspectable", "Introspect", &error, &reply, "");
 397         assert_se(r >= 0);
 398
 399         r = sd_bus_message_read(reply, "s", &s);
 400         assert_se(r >= 0);
 401         fputs(s, stdout);
 402
 403         sd_bus_message_unref(reply);
 404         reply = NULL;
 405
 406         r = sd_bus_call_method(bus, "org.freedesktop.systemd.test", "/value/a", "org.freedesktop.DBus.Introspectable", "Introspect", &error, &reply, "");
 407         assert_se(r >= 0);
 408
 409         r = sd_bus_message_read(reply, "s", &s);
 410         assert_se(r >= 0);
 411         fputs(s, stdout);
 412
 413         sd_bus_message_unref(reply);
 414         reply = NULL;
 415
 416         r = sd_bus_call_method(bus, "org.freedesktop.systemd.test", "/foo", "org.freedesktop.DBus.Properties", "GetAll", &error, &reply, "s", "");
 417         assert_se(r >= 0);
 418
 419         bus_message_dump(reply, stdout, BUS_MESSAGE_DUMP_WITH_HEADER);
 420
 421         sd_bus_message_unref(reply);
 422         reply = NULL;
 423
 424         r = sd_bus_call_method(bus, "org.freedesktop.systemd.test", "/value/a", "org.freedesktop.DBus.Properties", "GetAll", &error, &reply, "s", "org.freedesktop.systemd.ValueTest2");
 425         assert_se(r < 0);
 426         assert_se(sd_bus_error_has_name(&error, SD_BUS_ERROR_UNKNOWN_INTERFACE));
 427         sd_bus_error_free(&error);
 428
 429         r = sd_bus_call_method(bus, "org.freedesktop.systemd.test", "/foo", "org.freedesktop.DBus.ObjectManager", "GetManagedObjects", &error, &reply, "");
 430         assert_se(r < 0);
 431         assert_se(sd_bus_error_has_name(&error, SD_BUS_ERROR_UNKNOWN_METHOD));
 432         sd_bus_error_free(&error);
 433
 434         r = sd_bus_call_method(bus, "org.freedesktop.systemd.test", "/value", "org.freedesktop.DBus.ObjectManager", "GetManagedObjects", &error, &reply, "");
 435         assert_se(r >= 0);
 436
 437         bus_message_dump(reply, stdout, BUS_MESSAGE_DUMP_WITH_HEADER);
 438
 439         sd_bus_message_unref(reply);
 440         reply = NULL;
 441
 442         r = sd_bus_call_method(bus, "org.freedesktop.systemd.test", "/value/a", "org.freedesktop.systemd.ValueTest", "NotifyTest", &error, NULL, "");
 443         assert_se(r >= 0);
 444
 445         r = sd_bus_process(bus, &reply);
 446         assert_se(r > 0);
 447
 448         assert_se(sd_bus_message_is_signal(reply, "org.freedesktop.DBus.Properties", "PropertiesChanged"));
 449         bus_message_dump(reply, stdout, BUS_MESSAGE_DUMP_WITH_HEADER);
 450
 451         sd_bus_message_unref(reply);
 452         reply = NULL;
 453
 454         r = sd_bus_call_method(bus, "org.freedesktop.systemd.test", "/value/a", "org.freedesktop.systemd.ValueTest", "NotifyTest2", &error, NULL, "");
 455         assert_se(r >= 0);
 456
 457         r = sd_bus_process(bus, &reply);
 458         assert_se(r > 0);
 459
 460         assert_se(sd_bus_message_is_signal(reply, "org.freedesktop.DBus.Properties", "PropertiesChanged"));
 461         bus_message_dump(reply, stdout, BUS_MESSAGE_DUMP_WITH_HEADER);
 462
 463         sd_bus_message_unref(reply);
 464         reply = NULL;
 465
 466         r = sd_bus_call_method(bus, "org.freedesktop.systemd.test", "/foo", "org.freedesktop.systemd.test", "EmitInterfacesAdded", &error, NULL, "");
 467         assert_se(r >= 0);
 468
 469         r = sd_bus_process(bus, &reply);
 470         assert_se(r > 0);
 471
 472         assert_se(sd_bus_message_is_signal(reply, "org.freedesktop.DBus.ObjectManager", "InterfacesAdded"));
 473         bus_message_dump(reply, stdout, BUS_MESSAGE_DUMP_WITH_HEADER);
 474
 475         sd_bus_message_unref(reply);
 476         reply = NULL;
 477
 478         r = sd_bus_call_method(bus, "org.freedesktop.systemd.test", "/foo", "org.freedesktop.systemd.test", "EmitInterfacesRemoved", &error, NULL, "");
 479         assert_se(r >= 0);
 480
 481         r = sd_bus_process(bus, &reply);
 482         assert_se(r > 0);
 483
 484         assert_se(sd_bus_message_is_signal(reply, "org.freedesktop.DBus.ObjectManager", "InterfacesRemoved"));
 485         bus_message_dump(reply, stdout, BUS_MESSAGE_DUMP_WITH_HEADER);
 486
 487         sd_bus_message_unref(reply);
 488         reply = NULL;
 489
 490         r = sd_bus_call_method(bus, "org.freedesktop.systemd.test", "/foo", "org.freedesktop.systemd.test", "EmitObjectAdded", &error, NULL, "");
 491         assert_se(r >= 0);
 492
 493         r = sd_bus_process(bus, &reply);
 494         assert_se(r > 0);
 495
 496         assert_se(sd_bus_message_is_signal(reply, "org.freedesktop.DBus.ObjectManager", "InterfacesAdded"));
 497         bus_message_dump(reply, stdout, BUS_MESSAGE_DUMP_WITH_HEADER);
 498
 499         sd_bus_message_unref(reply);
 500         reply = NULL;
 501
 502         r = sd_bus_call_method(bus, "org.freedesktop.systemd.test", "/foo", "org.freedesktop.systemd.test", "EmitObjectRemoved", &error, NULL, "");
 503         assert_se(r >= 0);
 504
 505         r = sd_bus_process(bus, &reply);
 506         assert_se(r > 0);
 507
 508         assert_se(sd_bus_message_is_signal(reply, "org.freedesktop.DBus.ObjectManager", "InterfacesRemoved"));
 509         bus_message_dump(reply, stdout, BUS_MESSAGE_DUMP_WITH_HEADER);
 510
 511         sd_bus_message_unref(reply);
 512         reply = NULL;
 513
 514         r = sd_bus_call_method(bus, "org.freedesktop.systemd.test", "/foo", "org.freedesktop.systemd.test", "Exit", &error, NULL, "");
 515         assert_se(r >= 0);
 516
 517         sd_bus_flush(bus);
 518
 519         return 0;
 520 }
 521
 522 int main(int argc, char *argv[]) {
 523         struct context c = {};
 524         pthread_t s;
 525         void *p;
 526         int r, q;
 527
 528         zero(c);
 529
 530         c.automatic_integer_property = 4711;
 531         assert_se(c.automatic_string_property = strdup("dudeldu"));
 532
 533         assert_se(socketpair(AF_UNIX, SOCK_STREAM, 0, c.fds) >= 0);
 534
 535         r = pthread_create(&s, NULL, server, &c);
 536         if (r != 0)
 537                 return -r;
 538
 539         r = client(&c);
 540
 541         q = pthread_join(s, &p);
 542         if (q != 0)
 543                 return -q;
 544
 545         if (r < 0)
 546                 return r;
 547
 548         if (PTR_TO_INT(p) < 0)
 549                 return PTR_TO_INT(p);
 550
 551         free(c.something);
 552         free(c.automatic_string_property);
 553
 554         return EXIT_SUCCESS;
 555 }