1 /*
2  * Copyright (C) 2019 The Android Open Source Project
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 "linkerconfig/environment.h"
18 
19 #include <unistd.h>
20 
21 #include "linkerconfig/variables.h"
22 
23 namespace android {
24 namespace linkerconfig {
25 namespace modules {
26 bool IsLegacyDevice() {
27   return (!Variables::GetValue("ro.vndk.version").has_value() &&
28           !Variables::GetValue("ro.vndk.lite").has_value()) ||
29          Variables::GetValue("ro.treble.enabled") == "false";
30 }
31 
32 bool IsVndkLiteDevice() {
33   return Variables::GetValue("ro.vndk.lite").value_or("") == "true";
34 }
35 
36 bool IsVndkInSystemNamespace() {
37   return Variables::GetValue("VNDK_USING_CORE_VARIANT_LIBRARIES").has_value();
38 }
39 
40 std::string GetVendorVndkVersion() {
41   return Variables::GetValue("ro.vndk.version").value_or("");
42 }
43 
44 std::string GetProductVndkVersion() {
45   return Variables::GetValue("ro.product.vndk.version").value_or("");
46 }
47 
48 bool IsProductVndkVersionDefined() {
49   return Variables::GetValue("ro.product.vndk.version").has_value();
50 }
51 
52 bool IsRecoveryMode() {
53   return access("/system/bin/recovery", F_OK) == 0;
54 }
55 }  // namespace modules
56 }  // namespace linkerconfig
57 }  // namespace android
58