plugin/app2sd/common/src/app2sd_utils.c

   1 /*
   2  * app2ext
   3  *
   4  * Copyright (c) 2016 Samsung Electronics Co., Ltd. All rights reserved.
   5  *
   6  * Licensed under the Apache License, Version 2.0 (the "License");
   7  * you may not use this file except in compliance with the License.
   8  * You may obtain a copy of the License at
   9  *
  10  * http://www.apache.org/licenses/LICENSE-2.0
  11  *
  12  * Unless required by applicable law or agreed to in writing, software
  13  * distributed under the License is distributed on an "AS IS" BASIS,
  14  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  15  * See the License for the specific language governing permissions and
  16  * limitations under the License.
  17  *
  18  */
  19
  20 #include <stdio.h>
  21 #include <stdlib.h>
  22
  23 #include "app2sd_utils.h"
  24
  25 int _is_global(uid_t uid)
  26 {
  27         if (uid == OWNER_ROOT || uid == GLOBAL_USER)
  28                 return 1;
  29         else
  30                 return 0;
  31 }
  32
  33 char *_app2sd_get_encoded_name(const char *pkgid, uid_t uid)
  34 {
  35         char *new_name = NULL;
  36         char *temp_string = NULL;
  37         char source_name[FILENAME_MAX] = { 0, };
  38         GChecksum *checksum;
  39
  40         snprintf(source_name, FILENAME_MAX - 1, "%s_%d", pkgid, uid);
  41         checksum = g_checksum_new(G_CHECKSUM_MD5);
  42         g_checksum_update(checksum, (const guchar *)source_name, strlen(source_name));
  43         temp_string = (char *)g_checksum_get_string(checksum);
  44         new_name = strdup(temp_string);
  45         g_checksum_free(checksum);
  46
  47         return new_name;
  48 }
  49
  50 int _app2sd_delete_directory(const char *dirname)
  51 {
  52         DIR *dp = NULL;
  53         struct dirent ep;
  54         struct dirent *er = NULL;
  55         char abs_filename[FILENAME_MAX] = { 0, };
  56         int ret = 0;
  57
  58         dp = opendir(dirname);
  59         if (dp != NULL) {
  60                 while (readdir_r(dp, &ep, &er) == 0 && er != NULL) {
  61                         struct stat stFileInfo;
  62
  63                         snprintf(abs_filename, FILENAME_MAX, "%s/%s", dirname,
  64                                 ep.d_name);
  65
  66                         if (lstat(abs_filename, &stFileInfo) < 0) {
  67                                 perror(abs_filename);
  68                                 (void)closedir(dp);
  69                                 return -1;
  70                         }
  71
  72                         if (S_ISDIR(stFileInfo.st_mode)) {
  73                                 if (strcmp(ep.d_name, ".")
  74                                     && strcmp(ep.d_name, "..")) {
  75                                         ret = _app2sd_delete_directory(abs_filename);
  76                                         if (ret < 0) {
  77                                                 (void)closedir(dp);
  78                                                 return -1;
  79                                         }
  80                                 }
  81                         } else {
  82                                 ret = remove(abs_filename);
  83                                 if (ret < 0) {
  84                                         (void)closedir(dp);
  85                                         return -1;
  86                                 }
  87                         }
  88                 }
  89                 (void)closedir(dp);
  90                 ret = remove(dirname);
  91                 if (ret < 0)
  92                         return -1;
  93         } else {
  94                 _W("couldn't open the directory[%s]", dirname);
  95         }
  96         return 0;
  97 }