| /* |
| * Copyright (C) 2012 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #include <stdlib.h> |
| #include <unistd.h> |
| #include <fcntl.h> |
| #include <cutils/multiuser.h> |
| |
| userid_t getUserId(uid_t uid) { |
| return uid / MULTIUSER_APP_PER_USER_RANGE; |
| } |
| |
| appid_t getAppId(uid_t uid) { |
| return uid % MULTIUSER_APP_PER_USER_RANGE; |
| } |
| |
| uid_t getUid(userid_t userId, appid_t appId) { |
| return userId * MULTIUSER_APP_PER_USER_RANGE + (appId % MULTIUSER_APP_PER_USER_RANGE); |
| } |