common/vc_command.c

   1 /*
   2 * Copyright (c) 2011-2015 Samsung Electronics Co., Ltd All Rights Reserved
   3 *
   4 * Licensed under the Apache License, Version 2.0 (the License);
   5 * you may not use this file except in compliance with the License.
   6 * You may obtain a copy of the License at
   7 *
   8 * http://www.apache.org/licenses/LICENSE-2.0
   9 *
  10 * Unless required by applicable law or agreed to in writing, software
  11 * distributed under the License is distributed on an AS IS BASIS,
  12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13 * See the License for the specific language governing permissions and
  14 * limitations under the License.
  15 */
  16
  17 #include <cynara-client.h>
  18 #include <cynara-error.h>
  19 #include <cynara-session.h>
  20 #include <libintl.h>
  21 #include <stdlib.h>
  22 #include <system_info.h>
  23
  24 #include "vc_command.h"
  25 #include "vc_main.h"
  26 #include "voice_control_command.h"
  27 #include "voice_control_command_expand.h"
  28 #include "voice_control_common.h"
  29 #include "voice_control_key_defines.h"
  30
  31 static int g_feature_enabled = -1;
  32
  33 static int g_privilege_allowed = 1; /* Always True */
  34 static cynara *p_cynara = NULL;
  35
  36 static int __vc_cmd_get_feature_enabled()
  37 {
  38         if (0 == g_feature_enabled) {
  39                 SLOG(LOG_ERROR, TAG_VCCMD, "[ERROR] Voice control feature NOT supported");
  40                 return VC_ERROR_NOT_SUPPORTED;
  41         } else if (-1 == g_feature_enabled) {
  42                 bool vc_supported = false;
  43                 bool mic_supported = false;
  44                 if (0 == system_info_get_platform_bool(VC_FEATURE_PATH, &vc_supported)) {
  45                         if (0 == system_info_get_platform_bool(VC_MIC_FEATURE_PATH, &mic_supported)) {
  46                                 if (false == vc_supported || false == mic_supported) {
  47                                         SLOG(LOG_ERROR, TAG_VCCMD, "[ERROR] Voice control feature NOT supported");
  48                                         g_feature_enabled = 0;
  49                                         return VC_ERROR_NOT_SUPPORTED;
  50                                 }
  51
  52                                 g_feature_enabled = 1;
  53                         } else {
  54                                 SLOG(LOG_ERROR, TAG_VCCMD, "[ERROR] Fail to get feature value");
  55                                 return VC_ERROR_NOT_SUPPORTED;
  56                         }
  57                 } else {
  58                         SLOG(LOG_ERROR, TAG_VCCMD, "[ERROR] Fail to get feature value");
  59                         return VC_ERROR_NOT_SUPPORTED;
  60                 }
  61         }
  62
  63         return 0;
  64 }
  65
  66 static int __check_privilege_initialize()
  67 {
  68         int ret = cynara_initialize(&p_cynara, NULL);
  69         if (CYNARA_API_SUCCESS != ret)
  70                 SLOG(LOG_ERROR, TAG_VCCMD, "[ERROR] fail to initialize");
  71
  72         return ret == CYNARA_API_SUCCESS;
  73 }
  74
  75 static int __check_privilege(const char* uid, const char * privilege)
  76 {
  77         FILE *fp = NULL;
  78         char smack_label[1024] = "/proc/self/attr/current";
  79
  80         if (!p_cynara) {
  81             return false;
  82         }
  83
  84         fp = fopen(smack_label, "r");
  85         if (fp != NULL) {
  86             if (fread(smack_label, 1, sizeof(smack_label), fp) <= 0)
  87                 SLOG(LOG_ERROR, TAG_VCCMD, "[ERROR] fail to fread");
  88
  89             fclose(fp);
  90         }
  91
  92         pid_t pid = getpid();
  93         char *session = cynara_session_from_pid(pid);
  94         int ret = cynara_check(p_cynara, smack_label, session, uid, privilege);
  95         SLOG(LOG_DEBUG, TAG_VCCMD, "[Client]cynara_check returned %d(%s)", ret, (CYNARA_API_ACCESS_ALLOWED == ret) ? "Allowed" : "Denied");
  96         if (session)
  97             free(session);
  98
  99         if (ret != CYNARA_API_ACCESS_ALLOWED)
 100             return false;
 101         return true;
 102 }
 103
 104 static void __check_privilege_deinitialize()
 105 {
 106         if (p_cynara)
 107                 cynara_finish(p_cynara);
 108         p_cynara = NULL;
 109 }
 110
 111 static int __vc_cmd_check_privilege()
 112 {
 113         char uid[16];
 114
 115         if (0 == g_privilege_allowed) {
 116                 SLOG(LOG_ERROR, TAG_VCCMD, "[ERROR] Permission is denied");
 117                 return VC_ERROR_PERMISSION_DENIED;
 118         } else if (-1 == g_privilege_allowed) {
 119                 if (false == __check_privilege_initialize()) {
 120                         SLOG(LOG_ERROR, TAG_VCCMD, "[ERROR] privilege initialize is failed");
 121                         return VC_ERROR_PERMISSION_DENIED;
 122                 }
 123                 snprintf(uid, 16, "%d", getuid());
 124                 if (false == __check_privilege(uid, VC_PRIVILEGE)) {
 125                         SLOG(LOG_ERROR, TAG_VCCMD, "[ERROR] Permission is denied");
 126                         g_privilege_allowed = 0;
 127                         __check_privilege_deinitialize();
 128                         return VC_ERROR_PERMISSION_DENIED;
 129                 }
 130                 __check_privilege_deinitialize();
 131         }
 132
 133         g_privilege_allowed = 1;
 134
 135         return VC_ERROR_NONE;
 136 }
 137
 138 int vc_cmd_list_create(vc_cmd_list_h* vc_cmd_list)
 139 {
 140         if (0 != __vc_cmd_get_feature_enabled()) {
 141                 return VC_ERROR_NOT_SUPPORTED;
 142         }
 143         if (0 != __vc_cmd_check_privilege()) {
 144                 return VC_ERROR_PERMISSION_DENIED;
 145         }
 146
 147         if (NULL == vc_cmd_list) {
 148                 SLOG(LOG_ERROR, TAG_VCCMD, "[ERROR] Input parameter is NULL");
 149                 return VC_ERROR_INVALID_PARAMETER;
 150         }
 151
 152         vc_cmd_list_s* list = (vc_cmd_list_s*)calloc(1, sizeof(vc_cmd_list_s));
 153
 154         if (NULL == list) {
 155                 SLOG(LOG_ERROR, TAG_VCCMD, "[ERROR] Not enough memory");
 156                 return VC_ERROR_OUT_OF_MEMORY;
 157         }
 158
 159         list->index = -1;
 160         list->list = NULL;
 161
 162         *vc_cmd_list = (vc_cmd_list_h)list;
 163
 164         SLOG(LOG_DEBUG, TAG_VCCMD, "[List] list(%p)", *vc_cmd_list);
 165
 166         return VC_ERROR_NONE;
 167 }
 168
 169 int vc_cmd_list_destroy(vc_cmd_list_h vc_cmd_list, bool release_command)
 170 {
 171         if (0 != __vc_cmd_get_feature_enabled()) {
 172                 return VC_ERROR_NOT_SUPPORTED;
 173         }
 174         if (0 != __vc_cmd_check_privilege()) {
 175                 return VC_ERROR_PERMISSION_DENIED;
 176         }
 177
 178         if (NULL == vc_cmd_list) {
 179                 SLOG(LOG_ERROR, TAG_VCCMD, "[ERROR] Input parameter is NULL");
 180                 return VC_ERROR_INVALID_PARAMETER;
 181         }
 182
 183         vc_cmd_list_remove_all(vc_cmd_list, release_command);
 184
 185         vc_cmd_list_s* list = NULL;
 186         list = (vc_cmd_list_s*)vc_cmd_list;
 187
 188         SLOG(LOG_DEBUG, TAG_VCCMD, "[List] list(%p)", list);
 189
 190         if (NULL != list) {
 191                 free(list);
 192                 list = NULL;
 193         }
 194
 195         return VC_ERROR_NONE;
 196 }
 197
 198 int vc_cmd_list_get_count(vc_cmd_list_h vc_cmd_list, int* count)
 199 {
 200         if (0 != __vc_cmd_get_feature_enabled()) {
 201                 return VC_ERROR_NOT_SUPPORTED;
 202         }
 203         if (0 != __vc_cmd_check_privilege()) {
 204                 return VC_ERROR_PERMISSION_DENIED;
 205         }
 206
 207         if (NULL == vc_cmd_list || NULL == count) {
 208                 SLOG(LOG_ERROR, TAG_VCCMD, "[ERROR] Get command count : Input parameter is NULL");
 209                 return VC_ERROR_INVALID_PARAMETER;
 210         }
 211
 212         vc_cmd_list_s* list = NULL;
 213         list = (vc_cmd_list_s*)vc_cmd_list;
 214
 215         *count = g_slist_length(list->list);
 216
 217         SLOG(LOG_DEBUG, TAG_VCCMD, "[List] list(%p), count(%d)", list, *count);
 218
 219         return VC_ERROR_NONE;
 220 }
 221
 222 int vc_cmd_list_add(vc_cmd_list_h vc_cmd_list, vc_cmd_h vc_command)
 223 {
 224         if (0 != __vc_cmd_get_feature_enabled()) {
 225                 return VC_ERROR_NOT_SUPPORTED;
 226         }
 227         if (0 != __vc_cmd_check_privilege()) {
 228                 return VC_ERROR_PERMISSION_DENIED;
 229         }
 230
 231         if (NULL == vc_cmd_list || NULL == vc_command) {
 232                 SLOG(LOG_ERROR, TAG_VCCMD, "[ERROR] Input parameter is NULL");
 233                 return VC_ERROR_INVALID_PARAMETER;
 234         }
 235
 236         vc_cmd_list_s* list = NULL;
 237         list = (vc_cmd_list_s*)vc_cmd_list;
 238
 239         vc_cmd_s* cmd = NULL;
 240         cmd = (vc_cmd_s*)vc_command;
 241
 242         list->list = g_slist_append(list->list, cmd);
 243
 244         if (1 == g_slist_length(list->list)) {
 245                 list->index = 0;
 246         }
 247
 248         SLOG(LOG_DEBUG, TAG_VCCMD, "[List] list(%p), command(%p)", list, cmd);
 249
 250         return VC_ERROR_NONE;
 251 }
 252
 253 int vc_cmd_list_remove(vc_cmd_list_h vc_cmd_list, vc_cmd_h vc_command)
 254 {
 255         if (0 != __vc_cmd_get_feature_enabled()) {
 256                 return VC_ERROR_NOT_SUPPORTED;
 257         }
 258         if (0 != __vc_cmd_check_privilege()) {
 259                 return VC_ERROR_PERMISSION_DENIED;
 260         }
 261
 262         if (NULL == vc_cmd_list || NULL == vc_command) {
 263                 SLOG(LOG_ERROR, TAG_VCCMD, "[ERROR] Input parameter is NULL");
 264                 return VC_ERROR_INVALID_PARAMETER;
 265         }
 266
 267         vc_cmd_list_s* list = NULL;
 268         list = (vc_cmd_list_s*)vc_cmd_list;
 269
 270         vc_cmd_s* cmd = NULL;
 271         cmd = (vc_cmd_s*)vc_command;
 272
 273         SLOG(LOG_DEBUG, TAG_VCCMD, "[List] list(%p), command(%p)", list, cmd);
 274
 275         vc_cmd_s* temp_cmd = NULL;
 276         GSList *iter = NULL;
 277
 278         iter = g_slist_nth(list->list, 0);
 279
 280         while (NULL != iter) {
 281                 temp_cmd = iter->data;
 282
 283                 if (NULL != temp_cmd && cmd == temp_cmd) {
 284                         list->list = g_slist_remove(list->list, temp_cmd);
 285                         /*
 286                         if (true == release_command) {
 287                                 SLOG(LOG_DEBUG, TAG_VCCMD, "Release command data");
 288                                 if (NULL != temp_cmd->command)          free(temp_cmd->command);
 289                                 if (NULL != temp_cmd->parameter)        free(temp_cmd->parameter);
 290                                 free(temp_cmd);
 291                                 temp_cmd = NULL;
 292                         }
 293                         */
 294                 }
 295
 296                 iter = g_slist_next(iter);
 297         }
 298
 299         int count = g_slist_length(list->list);
 300
 301         if (0 == count) {
 302                 list->index = -1;
 303         } else if (list->index == count) {
 304                 list->index = count - 1;
 305         }
 306
 307         return VC_ERROR_NONE;
 308 }
 309
 310 int vc_cmd_list_remove_all(vc_cmd_list_h vc_cmd_list, bool release_command)
 311 {
 312         if (0 != __vc_cmd_get_feature_enabled()) {
 313                 return VC_ERROR_NOT_SUPPORTED;
 314         }
 315         if (0 != __vc_cmd_check_privilege()) {
 316                 return VC_ERROR_PERMISSION_DENIED;
 317         }
 318
 319         SLOG(LOG_DEBUG, TAG_VCCMD, "===== Destroy all command");
 320
 321         if (NULL == vc_cmd_list) {
 322                 SLOG(LOG_ERROR, TAG_VCCMD, "[ERROR] Input parameter is NULL");
 323                 return VC_ERROR_INVALID_PARAMETER;
 324         }
 325
 326         vc_cmd_list_s* list = NULL;
 327         list = (vc_cmd_list_s*)vc_cmd_list;
 328
 329         SLOG(LOG_DEBUG, TAG_VCCMD, "[List] list (%p), release command (%s)"
 330                  , list, release_command ? "true" : "false");
 331
 332         int count = g_slist_length(list->list);
 333
 334         int i ;
 335         vc_cmd_s *temp_cmd;
 336
 337         for (i = 0; i < count ; i++) {
 338                 temp_cmd = g_slist_nth_data(list->list, 0);
 339
 340                 if (NULL != temp_cmd) {
 341                         list->list = g_slist_remove(list->list, temp_cmd);
 342
 343                         if (true == release_command) {
 344                                 SLOG(LOG_DEBUG, TAG_VCCMD, "Free command(%p)", temp_cmd);
 345                                 if (NULL != temp_cmd->command)          free(temp_cmd->command);
 346                                 if (NULL != temp_cmd->parameter)        free(temp_cmd->parameter);
 347                                 free(temp_cmd);
 348                                 temp_cmd = NULL;
 349                         }
 350                 }
 351         }
 352
 353         list->index = -1;
 354
 355         SLOG(LOG_DEBUG, TAG_VCCMD, "=====");
 356         SLOG(LOG_DEBUG, TAG_VCCMD, " ");
 357
 358         return VC_ERROR_NONE;
 359 }
 360
 361 int vc_cmd_list_foreach_commands(vc_cmd_list_h vc_cmd_list, vc_cmd_list_cb callback, void* user_data)
 362 {
 363         if (0 != __vc_cmd_get_feature_enabled()) {
 364                 return VC_ERROR_NOT_SUPPORTED;
 365         }
 366         if (0 != __vc_cmd_check_privilege()) {
 367                 return VC_ERROR_PERMISSION_DENIED;
 368         }
 369
 370         if (NULL == vc_cmd_list) {
 371                 SLOG(LOG_ERROR, TAG_VCCMD, "[ERROR] Input parameter is NULL");
 372                 return VC_ERROR_INVALID_PARAMETER;
 373         }
 374
 375         vc_cmd_list_s* list = NULL;
 376         list = (vc_cmd_list_s*)vc_cmd_list;
 377
 378         int count = g_slist_length(list->list);
 379         int i ;
 380
 381         GSList *iter = NULL;
 382         vc_cmd_s *temp_cmd;
 383
 384         iter = g_slist_nth(list->list, 0);
 385
 386         for (i = 0; i < count; i++) {
 387                 if (NULL == iter) {
 388                         SLOG(LOG_ERROR, TAG_VCCMD, "[ERROR] No command in list");
 389                         return VC_ERROR_OPERATION_FAILED;
 390                 }
 391
 392                 temp_cmd = iter->data;
 393
 394                 if (NULL != temp_cmd) {
 395                         if (false == callback((vc_cmd_h)temp_cmd, user_data)) {
 396                                 break;
 397                         }
 398
 399                 }
 400                 iter = g_slist_next(iter);
 401         }
 402
 403         SLOG(LOG_DEBUG, TAG_VCCMD, "===== Foreach commands Done");
 404
 405         return VC_ERROR_NONE;
 406 }
 407
 408 int vc_cmd_list_filter_by_type(vc_cmd_list_h original, int type, vc_cmd_list_h* filtered)
 409 {
 410         SLOG(LOG_DEBUG, TAG_VCCMD, "===== Filter by type");
 411
 412         if (0 != __vc_cmd_get_feature_enabled()) {
 413                 return VC_ERROR_NOT_SUPPORTED;
 414         }
 415         if (0 != __vc_cmd_check_privilege()) {
 416                 return VC_ERROR_PERMISSION_DENIED;
 417         }
 418
 419         if (NULL == original) {
 420                 SLOG(LOG_ERROR, TAG_VCCMD, "[ERROR] Input parameter is NULL");
 421                 return VC_ERROR_INVALID_PARAMETER;
 422         }
 423
 424         if (VC_COMMAND_TYPE_NONE >= type || VC_COMMAND_TYPE_EXCLUSIVE < type) {
 425                 SLOG(LOG_ERROR, TAG_VCCMD, "[ERROR] Invalid type");
 426                 return VC_ERROR_INVALID_PARAMETER;
 427         }
 428
 429         vc_cmd_list_s* list = NULL;
 430         list = (vc_cmd_list_s*)original;
 431
 432         vc_cmd_list_h temp_list;
 433         if (0 != vc_cmd_list_create(&temp_list)) {
 434                 SLOG(LOG_ERROR, TAG_VCCMD, "[ERROR] Fail to list create");
 435                 return VC_ERROR_OPERATION_FAILED;
 436         }
 437
 438         int count = g_slist_length(list->list);
 439         int i;
 440
 441         GSList *iter = NULL;
 442         vc_cmd_s *iter_cmd;
 443
 444         iter = g_slist_nth(list->list, 0);
 445
 446         for (i = 0; i < count; i++) {
 447                 if (NULL == iter) {
 448                         SLOG(LOG_ERROR, TAG_VCCMD, "[ERROR] No command in list");
 449                         return VC_ERROR_OPERATION_FAILED;
 450                 }
 451                 if (NULL != iter->data) {
 452                         iter_cmd = iter->data;
 453
 454                         if (NULL != iter_cmd) {
 455                                 int iter_type;
 456                                 if (0 != vc_cmd_get_type((vc_cmd_h)iter_cmd, &iter_type)) {
 457                                         SLOG(LOG_ERROR, TAG_VCCMD, "[ERROR] Fail to get command type");
 458                                         continue;
 459                                 }
 460
 461                                 if (iter_type == type) {
 462                                         vc_cmd_h temp_cmd;
 463                                         if (0 != vc_cmd_create(&temp_cmd)) {
 464                                                 SLOG(LOG_ERROR, TAG_VCCMD, "[ERROR] Fail to create cmd");
 465                                                 continue;
 466                                         }
 467
 468                                         memcpy(temp_cmd, iter_cmd, sizeof(vc_cmd_s));
 469                                         if (NULL != iter_cmd->command) {
 470                                                 ((vc_cmd_s*)temp_cmd)->command = strdup(iter_cmd->command);
 471                                         }
 472                                         if (NULL != iter_cmd->parameter) {
 473                                                 ((vc_cmd_s*)temp_cmd)->parameter = strdup(iter_cmd->parameter);
 474                                         }
 475
 476                                         if (0 != vc_cmd_list_add(temp_list, temp_cmd)) {
 477                                                 SLOG(LOG_ERROR, TAG_VCCMD, "[ERROR] Fail to cmd list add");
 478                                                 vc_cmd_destroy(temp_cmd);
 479                                                 continue;
 480                                         }
 481                                 }
 482                         }
 483                 }
 484                 iter = g_slist_next(iter);
 485         }
 486
 487         count = 0;
 488         if (0 != vc_cmd_list_get_count(temp_list, &count)) {
 489                 SLOG(LOG_ERROR, TAG_VCCMD, "[ERROR] Fail to get count");
 490         } else {
 491                 SLOG(LOG_DEBUG, TAG_VCCMD, "Filtering result : (%d) command", count);
 492         }
 493
 494         *filtered = temp_list;
 495
 496         SLOG(LOG_DEBUG, TAG_VCCMD, "=====");
 497
 498         return VC_ERROR_NONE;
 499 }
 500
 501 int vc_cmd_list_first(vc_cmd_list_h vc_cmd_list)
 502 {
 503         if (0 != __vc_cmd_get_feature_enabled()) {
 504                 return VC_ERROR_NOT_SUPPORTED;
 505         }
 506         if (0 != __vc_cmd_check_privilege()) {
 507                 return VC_ERROR_PERMISSION_DENIED;
 508         }
 509
 510         if (NULL == vc_cmd_list) {
 511                 SLOG(LOG_ERROR, TAG_VCCMD, "[ERROR] Input parameter is NULL");
 512                 return VC_ERROR_INVALID_PARAMETER;
 513         }
 514
 515         vc_cmd_list_s* list = NULL;
 516         list = (vc_cmd_list_s*)vc_cmd_list;
 517
 518         if (0 == g_slist_length(list->list)) {
 519                 SLOG(LOG_ERROR, TAG_VCCMD, "[ERROR] List is empty");
 520                 return VC_ERROR_EMPTY;
 521         }
 522
 523         list->index = 0;
 524
 525         return VC_ERROR_NONE;
 526 }
 527
 528 int vc_cmd_list_last(vc_cmd_list_h vc_cmd_list)
 529 {
 530         if (0 != __vc_cmd_get_feature_enabled()) {
 531                 return VC_ERROR_NOT_SUPPORTED;
 532         }
 533         if (0 != __vc_cmd_check_privilege()) {
 534                 return VC_ERROR_PERMISSION_DENIED;
 535         }
 536
 537         if (NULL == vc_cmd_list) {
 538                 SLOG(LOG_ERROR, TAG_VCCMD, "[ERROR] Input parameter is NULL");
 539                 return VC_ERROR_INVALID_PARAMETER;
 540         }
 541
 542         vc_cmd_list_s* list = NULL;
 543         list = (vc_cmd_list_s*)vc_cmd_list;
 544
 545         int count = g_slist_length(list->list);
 546
 547         if (0 == count) {
 548                 SLOG(LOG_ERROR, TAG_VCCMD, "[ERROR] List is empty");
 549                 return VC_ERROR_EMPTY;
 550         } else {
 551                 list->index = count - 1;
 552                 SLOG(LOG_DEBUG, TAG_VCCMD, "[DEBUG] List index : %d", list->index);
 553         }
 554
 555         return VC_ERROR_NONE;
 556 }
 557
 558 int vc_cmd_list_next(vc_cmd_list_h vc_cmd_list)
 559 {
 560         if (0 != __vc_cmd_get_feature_enabled()) {
 561                 return VC_ERROR_NOT_SUPPORTED;
 562         }
 563         if (0 != __vc_cmd_check_privilege()) {
 564                 return VC_ERROR_PERMISSION_DENIED;
 565         }
 566
 567         if (NULL == vc_cmd_list) {
 568                 SLOG(LOG_ERROR, TAG_VCCMD, "[ERROR] Input parameter is NULL");
 569                 return VC_ERROR_INVALID_PARAMETER;
 570         }
 571
 572         vc_cmd_list_s* list = NULL;
 573         list = (vc_cmd_list_s*)vc_cmd_list;
 574
 575         int count = g_slist_length(list->list);
 576
 577         if (list->index < count - 1) {
 578                 list->index = list->index + 1;
 579                 SLOG(LOG_DEBUG, TAG_VCCMD, "[DEBUG] List index : %d", list->index);
 580         } else {
 581                 SLOG(LOG_DEBUG, TAG_VCCMD, "[DEBUG] List index : %d", list->index);
 582                 return VC_ERROR_ITERATION_END;
 583         }
 584
 585         return VC_ERROR_NONE;
 586 }
 587
 588 int vc_cmd_list_prev(vc_cmd_list_h vc_cmd_list)
 589 {
 590         if (0 != __vc_cmd_get_feature_enabled()) {
 591                 return VC_ERROR_NOT_SUPPORTED;
 592         }
 593         if (0 != __vc_cmd_check_privilege()) {
 594                 return VC_ERROR_PERMISSION_DENIED;
 595         }
 596
 597         if (NULL == vc_cmd_list) {
 598                 SLOG(LOG_ERROR, TAG_VCCMD, "[ERROR] Input parameter is NULL");
 599                 return VC_ERROR_INVALID_PARAMETER;
 600         }
 601
 602         vc_cmd_list_s* list = NULL;
 603         list = (vc_cmd_list_s*)vc_cmd_list;
 604
 605         if (list->index > 0) {
 606                 list->index = list->index - 1;
 607                 SLOG(LOG_DEBUG, TAG_VCCMD, "[DEBUG] List index : %d", list->index);
 608         } else {
 609                 SLOG(LOG_DEBUG, TAG_VCCMD, "[DEBUG] List index : %d", list->index);
 610                 return VC_ERROR_ITERATION_END;
 611         }
 612
 613         return VC_ERROR_NONE;
 614 }
 615
 616 int vc_cmd_list_get_current(vc_cmd_list_h vc_cmd_list, vc_cmd_h* vc_command)
 617 {
 618         if (0 != __vc_cmd_get_feature_enabled()) {
 619                 return VC_ERROR_NOT_SUPPORTED;
 620         }
 621         if (0 != __vc_cmd_check_privilege()) {
 622                 return VC_ERROR_PERMISSION_DENIED;
 623         }
 624
 625         if (NULL == vc_cmd_list || NULL == vc_command) {
 626                 SLOG(LOG_ERROR, TAG_VCCMD, "[ERROR] Input parameter is NULL");
 627                 return VC_ERROR_INVALID_PARAMETER;
 628         }
 629
 630         vc_cmd_list_s* list = NULL;
 631         list = (vc_cmd_list_s*)vc_cmd_list;
 632
 633         SLOG(LOG_DEBUG, TAG_VCCMD, "[List] list (%p), index (%d)", list, list->index);
 634
 635         if (0 == g_slist_length(list->list)) {
 636                 SLOG(LOG_DEBUG, TAG_VCCMD, "[List] list is empty");
 637                 *vc_command = NULL;
 638                 return VC_ERROR_EMPTY;
 639         }
 640
 641         vc_cmd_s *temp_cmd = NULL;
 642         temp_cmd = g_slist_nth_data(list->list, list->index);
 643
 644         *vc_command = (vc_cmd_h)temp_cmd;
 645
 646         SLOG(LOG_DEBUG, TAG_VCCMD, "[List] Get current command (%p)", *vc_command);
 647
 648         return VC_ERROR_NONE;
 649 }
 650
 651
 652 int vc_cmd_create(vc_cmd_h* vc_command)
 653 {
 654         if (0 != __vc_cmd_get_feature_enabled()) {
 655                 return VC_ERROR_NOT_SUPPORTED;
 656         }
 657         if (0 != __vc_cmd_check_privilege()) {
 658                 return VC_ERROR_PERMISSION_DENIED;
 659         }
 660
 661         if (NULL == vc_command) {
 662                 SLOG(LOG_ERROR, TAG_VCCMD, "[ERROR] Input parameter is NULL");
 663                 return VC_ERROR_INVALID_PARAMETER;
 664         }
 665
 666         vc_cmd_s* command = (vc_cmd_s*)calloc(1, sizeof(vc_cmd_s));
 667
 668         if (NULL == command) {
 669                 SLOG(LOG_ERROR, TAG_VCCMD, "[ERROR] Not enough memory");
 670                 return VC_ERROR_OUT_OF_MEMORY;
 671         }
 672
 673         command->pid = 0;
 674         command->id = 0;
 675         command->index = 0;
 676         command->type = VC_COMMAND_TYPE_NONE;
 677         command->format = VC_CMD_FORMAT_FIXED;
 678         command->command = NULL;
 679         command->parameter = NULL;
 680         command->domain = 0;
 681         command->key = VC_KEY_NONE;
 682         command->modifier = VC_MODIFIER_NONE;
 683
 684         *vc_command = (vc_cmd_h)command;
 685
 686         SLOG(LOG_DEBUG, TAG_VCCMD, "[Create command][%p]", *vc_command);
 687
 688         return VC_ERROR_NONE;
 689 }
 690
 691 int vc_cmd_destroy(vc_cmd_h vc_command)
 692 {
 693         if (0 != __vc_cmd_get_feature_enabled()) {
 694                 return VC_ERROR_NOT_SUPPORTED;
 695         }
 696         if (0 != __vc_cmd_check_privilege()) {
 697                 return VC_ERROR_PERMISSION_DENIED;
 698         }
 699
 700         if (NULL == vc_command) {
 701                 SLOG(LOG_ERROR, TAG_VCCMD, "[ERROR] Input parameter is NULL");
 702                 return VC_ERROR_INVALID_PARAMETER;
 703         }
 704
 705         vc_cmd_s* command = NULL;
 706         command = (vc_cmd_s*)vc_command;
 707
 708         SLOG(LOG_DEBUG, TAG_VCCMD, "[Destroy command][%p]", command);
 709
 710         if (NULL != command) {
 711                 if (NULL != command->command)   free(command->command);
 712                 if (NULL != command->parameter) free(command->parameter);
 713                 free(command);
 714                 command = NULL;
 715         }
 716
 717         return VC_ERROR_NONE;
 718 }
 719
 720 int vc_cmd_set_id(vc_cmd_h vc_command, int id)
 721 {
 722         if (0 != __vc_cmd_get_feature_enabled()) {
 723                 return VC_ERROR_NOT_SUPPORTED;
 724         }
 725         if (0 != __vc_cmd_check_privilege()) {
 726                 return VC_ERROR_PERMISSION_DENIED;
 727         }
 728
 729         if (NULL == vc_command) {
 730                 SLOG(LOG_ERROR, TAG_VCCMD, "[ERROR] Invalid parameter ");
 731                 return VC_ERROR_INVALID_PARAMETER;
 732         }
 733
 734         vc_cmd_s* cmd = NULL;
 735         cmd = (vc_cmd_s*)vc_command;
 736
 737         if (NULL != cmd) {
 738                 cmd->id = id;
 739                 SLOG(LOG_DEBUG, TAG_VCCMD, "[Set id][%p] id(%d)", vc_command, cmd->id);
 740         }
 741
 742         return 0;
 743 }
 744
 745 int vc_cmd_get_id(vc_cmd_h vc_command, int* id)
 746 {
 747         if (0 != __vc_cmd_get_feature_enabled()) {
 748                 return VC_ERROR_NOT_SUPPORTED;
 749         }
 750         if (0 != __vc_cmd_check_privilege()) {
 751                 return VC_ERROR_PERMISSION_DENIED;
 752         }
 753
 754         if (NULL == vc_command || NULL == id) {
 755                 SLOG(LOG_ERROR, TAG_VCCMD, "[ERROR] Invalid handle ");
 756                 return VC_ERROR_INVALID_PARAMETER;
 757         }
 758
 759         vc_cmd_s* cmd = NULL;
 760         cmd = (vc_cmd_s*)vc_command;
 761
 762         if (NULL != cmd) {
 763                 *id = cmd->id;
 764                 SLOG(LOG_DEBUG, TAG_VCCMD, "[Get id][%p] id(%d)", vc_command, *id);
 765         }
 766
 767         return 0;
 768 }
 769
 770 int vc_cmd_set_command(vc_cmd_h vc_command, const char* command)
 771 {
 772         if (0 != __vc_cmd_get_feature_enabled()) {
 773                 return VC_ERROR_NOT_SUPPORTED;
 774         }
 775         if (0 != __vc_cmd_check_privilege()) {
 776                 return VC_ERROR_PERMISSION_DENIED;
 777         }
 778
 779         if (NULL == vc_command) {
 780                 SLOG(LOG_ERROR, TAG_VCCMD, "[ERROR] Invalid parameter ");
 781                 return VC_ERROR_INVALID_PARAMETER;
 782         }
 783
 784         vc_cmd_s* cmd = NULL;
 785         cmd = (vc_cmd_s*)vc_command;
 786
 787         if (NULL != cmd->command) {
 788                 free(cmd->command);
 789         }
 790
 791         cmd->command = NULL;
 792
 793         if (NULL != command) {
 794                 cmd->command = strdup(command);
 795         }
 796
 797         SLOG(LOG_DEBUG, TAG_VCCMD, "[Set command][%p] Command(%s)", vc_command, cmd->command);
 798
 799         return 0;
 800 }
 801
 802 int vc_cmd_get_command(vc_cmd_h vc_command, char** command)
 803 {
 804         if (0 != __vc_cmd_get_feature_enabled()) {
 805                 return VC_ERROR_NOT_SUPPORTED;
 806         }
 807         if (0 != __vc_cmd_check_privilege()) {
 808                 return VC_ERROR_PERMISSION_DENIED;
 809         }
 810
 811         if (NULL == vc_command || NULL == command) {
 812                 SLOG(LOG_ERROR, TAG_VCCMD, "[ERROR] Invalid handle ");
 813                 return VC_ERROR_INVALID_PARAMETER;
 814         }
 815
 816         vc_cmd_s* cmd = NULL;
 817         cmd = (vc_cmd_s*)vc_command;
 818
 819         if (NULL != cmd->command) {
 820                 *command = strdup(gettext(cmd->command));
 821         }
 822
 823         SLOG(LOG_DEBUG, TAG_VCCMD, "[Get command][%p] Command(%s)", vc_command, *command);
 824
 825         return 0;
 826 }
 827
 828 int vc_cmd_set_unfixed_command(vc_cmd_h vc_command, const char* command)
 829 {
 830         if (0 != __vc_cmd_get_feature_enabled()) {
 831                 return VC_ERROR_NOT_SUPPORTED;
 832         }
 833         if (0 != __vc_cmd_check_privilege()) {
 834                 return VC_ERROR_PERMISSION_DENIED;
 835         }
 836
 837         if (NULL == vc_command) {
 838                 SLOG(LOG_ERROR, TAG_VCCMD, "[ERROR] Invalid parameter ");
 839                 return VC_ERROR_INVALID_PARAMETER;
 840         }
 841
 842         vc_cmd_s* cmd = NULL;
 843         cmd = (vc_cmd_s*)vc_command;
 844
 845         if (NULL != cmd->parameter) {
 846                 free(cmd->parameter);
 847         }
 848
 849         cmd->parameter = NULL;
 850
 851         if (NULL != command) {
 852                 cmd->parameter = strdup(command);
 853                 SLOG(LOG_DEBUG, TAG_VCCMD, "[Set parameter][%p] parameter(%s)", vc_command, cmd->parameter);
 854         }
 855
 856         return 0;
 857 }
 858
 859 int vc_cmd_get_unfixed_command(vc_cmd_h vc_command, char** command)
 860 {
 861         if (0 != __vc_cmd_get_feature_enabled()) {
 862                 return VC_ERROR_NOT_SUPPORTED;
 863         }
 864         if (0 != __vc_cmd_check_privilege()) {
 865                 return VC_ERROR_PERMISSION_DENIED;
 866         }
 867
 868         if (NULL == vc_command || NULL == command) {
 869                 SLOG(LOG_ERROR, TAG_VCCMD, "[ERROR] Invalid handle ");
 870                 return VC_ERROR_INVALID_PARAMETER;
 871         }
 872
 873         vc_cmd_s* cmd = NULL;
 874         cmd = (vc_cmd_s*)vc_command;
 875
 876         if (NULL != cmd->parameter) {
 877                 *command = strdup(gettext(cmd->parameter));
 878                 SLOG(LOG_DEBUG, TAG_VCCMD, "[Get nonfixed command][%p] nonfixed command(%s)", vc_command, *command);
 879         }
 880
 881         return 0;
 882 }
 883
 884 int vc_cmd_set_type(vc_cmd_h vc_command, int type)
 885 {
 886         if (0 != __vc_cmd_get_feature_enabled()) {
 887                 return VC_ERROR_NOT_SUPPORTED;
 888         }
 889         if (0 != __vc_cmd_check_privilege()) {
 890                 return VC_ERROR_PERMISSION_DENIED;
 891         }
 892
 893         if (NULL == vc_command) {
 894                 SLOG(LOG_ERROR, TAG_VCCMD, "[ERROR] Invalid parameter ");
 895                 return VC_ERROR_INVALID_PARAMETER;
 896         }
 897
 898         vc_cmd_s* cmd = NULL;
 899         cmd = (vc_cmd_s*)vc_command;
 900
 901         cmd->type = type;
 902
 903         SLOG(LOG_DEBUG, TAG_VCCMD, "[Set type][%p] type(%d)", vc_command, cmd->type);
 904
 905         return 0;
 906 }
 907
 908 int vc_cmd_get_type(vc_cmd_h vc_command, int* type)
 909 {
 910         if (0 != __vc_cmd_get_feature_enabled()) {
 911                 return VC_ERROR_NOT_SUPPORTED;
 912         }
 913         if (0 != __vc_cmd_check_privilege()) {
 914                 return VC_ERROR_PERMISSION_DENIED;
 915         }
 916
 917         if (NULL == vc_command || NULL == type) {
 918                 SLOG(LOG_ERROR, TAG_VCCMD, "[ERROR] Invalid parameter ");
 919                 return VC_ERROR_INVALID_PARAMETER;
 920         }
 921
 922         vc_cmd_s* cmd = NULL;
 923         cmd = (vc_cmd_s*)vc_command;
 924
 925         *type = cmd->type;
 926
 927         SLOG(LOG_DEBUG, TAG_VCCMD, "[Get type][%p] type(%d)", vc_command, *type);
 928
 929         return 0;
 930 }
 931
 932 int vc_cmd_set_format(vc_cmd_h vc_command, vc_cmd_format_e format)
 933 {
 934         if (0 != __vc_cmd_get_feature_enabled()) {
 935                 return VC_ERROR_NOT_SUPPORTED;
 936         }
 937         if (0 != __vc_cmd_check_privilege()) {
 938                 return VC_ERROR_PERMISSION_DENIED;
 939         }
 940
 941         if (NULL == vc_command) {
 942                 SLOG(LOG_ERROR, TAG_VCCMD, "[ERROR] Invalid parameter ");
 943                 return VC_ERROR_INVALID_PARAMETER;
 944         }
 945
 946         vc_cmd_s* cmd = NULL;
 947         cmd = (vc_cmd_s*)vc_command;
 948
 949         cmd->format = format;
 950
 951         SLOG(LOG_DEBUG, TAG_VCCMD, "[Set format][%p] format(%d)", vc_command, format);
 952
 953         return 0;
 954 }
 955
 956 int vc_cmd_get_format(vc_cmd_h vc_command, vc_cmd_format_e* format)
 957 {
 958         if (0 != __vc_cmd_get_feature_enabled()) {
 959                 return VC_ERROR_NOT_SUPPORTED;
 960         }
 961         if (0 != __vc_cmd_check_privilege()) {
 962                 return VC_ERROR_PERMISSION_DENIED;
 963         }
 964
 965         if (NULL == vc_command || NULL == format) {
 966                 SLOG(LOG_ERROR, TAG_VCCMD, "[ERROR] Invalid parameter ");
 967                 return VC_ERROR_INVALID_PARAMETER;
 968         }
 969
 970         vc_cmd_s* cmd = NULL;
 971         cmd = (vc_cmd_s*)vc_command;
 972
 973         *format = cmd->format;
 974
 975         SLOG(LOG_DEBUG, TAG_VCCMD, "[Get format][%p] format(%d)", vc_command, *format);
 976
 977         return 0;
 978 }
 979
 980 int vc_cmd_set_pid(vc_cmd_h vc_command, int pid)
 981 {
 982         if (0 != __vc_cmd_get_feature_enabled()) {
 983                 return VC_ERROR_NOT_SUPPORTED;
 984         }
 985         if (0 != __vc_cmd_check_privilege()) {
 986                 return VC_ERROR_PERMISSION_DENIED;
 987         }
 988
 989         if (NULL == vc_command) {
 990                 SLOG(LOG_ERROR, TAG_VCCMD, "[ERROR] Invalid parameter ");
 991                 return VC_ERROR_INVALID_PARAMETER;
 992         }
 993
 994         vc_cmd_s* cmd = NULL;
 995         cmd = (vc_cmd_s*)vc_command;
 996
 997         cmd->pid = pid;
 998
 999         SLOG(LOG_DEBUG, TAG_VCCMD, "[Set pid][%p] pid(%d)", vc_command, cmd->pid);
1000
1001         return 0;
1002 }
1003
1004 int vc_cmd_get_pid(vc_cmd_h vc_command, int* pid)
1005 {
1006         if (0 != __vc_cmd_get_feature_enabled()) {
1007                 return VC_ERROR_NOT_SUPPORTED;
1008         }
1009         if (0 != __vc_cmd_check_privilege()) {
1010                 return VC_ERROR_PERMISSION_DENIED;
1011         }
1012
1013         if (NULL == vc_command || NULL == pid) {
1014                 SLOG(LOG_ERROR, TAG_VCCMD, "[ERROR] Invalid parameter ");
1015                 return VC_ERROR_INVALID_PARAMETER;
1016         }
1017
1018         vc_cmd_s* cmd = NULL;
1019         cmd = (vc_cmd_s*)vc_command;
1020
1021         *pid = cmd->pid;
1022
1023         SLOG(LOG_DEBUG, TAG_VCCMD, "[Get pid][%p] pid(%d)", vc_command, *pid);
1024
1025         return 0;
1026 }
1027
1028 int vc_cmd_set_domain(vc_cmd_h vc_command, int domain)
1029 {
1030         if (0 != __vc_cmd_get_feature_enabled()) {
1031                 return VC_ERROR_NOT_SUPPORTED;
1032         }
1033         if (0 != __vc_cmd_check_privilege()) {
1034                 return VC_ERROR_PERMISSION_DENIED;
1035         }
1036
1037         if (NULL == vc_command) {
1038                 SLOG(LOG_ERROR, TAG_VCCMD, "[ERROR] Invalid parameter ");
1039                 return VC_ERROR_INVALID_PARAMETER;
1040         }
1041
1042         vc_cmd_s* cmd = NULL;
1043         cmd = (vc_cmd_s*)vc_command;
1044
1045         cmd->domain = domain;
1046
1047         SLOG(LOG_DEBUG, TAG_VCCMD, "[Set domain] domain : %d", domain);
1048
1049         return 0;
1050 }
1051
1052 int vc_cmd_get_domain(vc_cmd_h vc_command, int* domain)
1053 {
1054         if (0 != __vc_cmd_get_feature_enabled()) {
1055                 return VC_ERROR_NOT_SUPPORTED;
1056         }
1057         if (0 != __vc_cmd_check_privilege()) {
1058                 return VC_ERROR_PERMISSION_DENIED;
1059         }
1060
1061         if (NULL == vc_command || NULL == domain) {
1062                 SLOG(LOG_ERROR, TAG_VCCMD, "[ERROR] Invalid parameter ");
1063                 return VC_ERROR_INVALID_PARAMETER;
1064         }
1065
1066         vc_cmd_s* cmd = NULL;
1067         cmd = (vc_cmd_s*)vc_command;
1068
1069         *domain = cmd->domain;
1070
1071         SLOG(LOG_DEBUG, TAG_VCCMD, "[Get domain] domain : %d", *domain);
1072
1073         return 0;
1074 }
1075
1076 /**
1077 * @brief Sets key value of command.
1078 *
1079 * @param[in] vc_command Command handle
1080 * @param[in] key key value
1081 * @param[in] modifier modifier value
1082 *
1083 * @return 0 on success, otherwise a negative error value
1084 * @retval #VC_ERROR_NONE Successful
1085 * @retval #VC_ERROR_INVALID_PARAMETER Invalid parameter
1086 *
1087 * @see vc_cmd_get_result_key()
1088 */
1089 int vc_cmd_set_result_key(vc_cmd_h vc_command, int key, int modifier)
1090 {
1091         SLOG(LOG_DEBUG, TAG_VCCMD, "===== Set result key");
1092
1093         if (NULL == vc_command) {
1094                 SLOG(LOG_ERROR, TAG_VCCMD, "[ERROR] Invalid parameter ");
1095                 return VC_ERROR_INVALID_PARAMETER;
1096         }
1097
1098         vc_cmd_s* cmd = NULL;
1099         cmd = (vc_cmd_s*)vc_command;
1100
1101         SLOG(LOG_DEBUG, TAG_VCCMD, "key : %d, modifier : %d", key, modifier);
1102
1103         cmd->key = key;
1104         cmd->modifier = modifier;
1105
1106         SLOG(LOG_DEBUG, TAG_VCCMD, "=====");
1107         SLOG(LOG_DEBUG, TAG_VCCMD, " ");
1108
1109         return 0;
1110 }
1111
1112 /**
1113 * @brief Gets key value of command.
1114 *
1115 * @param[in] vc_command Command handle
1116 * @param[out] key key value
1117 * @param[out] modifier modifier value
1118 *
1119 * @return 0 on success, otherwise a negative error value
1120 * @retval #VC_ERROR_NONE Successful
1121 * @retval #VC_ERROR_INVALID_PARAMETER Invalid parameter
1122 *
1123 * @see vc_cmd_add_result_key()
1124 */
1125 int vc_cmd_get_result_key(vc_cmd_h vc_command, int* key, int* modifier)
1126 {
1127         SLOG(LOG_DEBUG, TAG_VCCMD, "===== Get result key");
1128
1129         if (NULL == vc_command || NULL == key || NULL == modifier) {
1130                 SLOG(LOG_ERROR, TAG_VCCMD, "[ERROR] Invalid parameter ");
1131                 return VC_ERROR_INVALID_PARAMETER;
1132         }
1133
1134         vc_cmd_s* cmd = NULL;
1135         cmd = (vc_cmd_s*)vc_command;
1136
1137         *key = cmd->key;
1138         *modifier = cmd->modifier;
1139
1140         SLOG(LOG_DEBUG, TAG_VCCMD, "=====");
1141         SLOG(LOG_DEBUG, TAG_VCCMD, " ");
1142
1143         return 0;
1144 }
1145
1146 int vc_cmd_print_list(vc_cmd_list_h vc_cmd_list)
1147 {
1148         if (NULL == vc_cmd_list) {
1149                 return -1;
1150         }
1151
1152         vc_cmd_list_s* list = NULL;
1153         list = (vc_cmd_list_s*)vc_cmd_list;
1154
1155         SLOG(LOG_DEBUG, TAG_VCCMD, "=== Command List ===");
1156         SLOG(LOG_DEBUG, TAG_VCCMD, "[List][%p]", list);
1157
1158         int count = g_slist_length(list->list);
1159
1160         int i;
1161         vc_cmd_s *temp_cmd = NULL;
1162
1163         for (i = 0; i < count ; i++) {
1164                 temp_cmd = g_slist_nth_data(list->list, i);
1165
1166                 if (NULL != temp_cmd) {
1167                         SLOG(LOG_DEBUG, TAG_VCCMD, "  [%d][%p] PID(%d) ID(%d) Type(%d) Format(%d) Domain(%d) Command(%s) Param(%s)",
1168                                  i, temp_cmd, temp_cmd->pid, temp_cmd->index, temp_cmd->type, temp_cmd->format, temp_cmd->domain, temp_cmd->command, temp_cmd->parameter);
1169                 }
1170         }
1171
1172         SLOG(LOG_DEBUG, TAG_VCCMD, "==================");
1173         SLOG(LOG_DEBUG, TAG_VCCMD, " ");
1174
1175         return 0;
1176 }