1 //
2 // Copyright (C) 2013 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 "update_engine/common/hwid_override.h"
18 
19 #include <string>
20 
21 #include <base/files/file_path.h>
22 #include <base/files/file_util.h>
23 #include <brillo/key_value_store.h>
24 
25 using std::string;
26 
27 namespace chromeos_update_engine {
28 
29 const char HwidOverride::kHwidOverrideKey[] = "HWID_OVERRIDE";
30 
HwidOverride()31 HwidOverride::HwidOverride() {}
32 
~HwidOverride()33 HwidOverride::~HwidOverride() {}
34 
Read(const base::FilePath & root)35 string HwidOverride::Read(const base::FilePath& root) {
36   brillo::KeyValueStore lsb_release;
37   lsb_release.Load(base::FilePath(root.value() + "/etc/lsb-release"));
38   string result;
39   if (lsb_release.GetString(kHwidOverrideKey, &result))
40     return result;
41   return "";
42 }
43 
44 }  // namespace chromeos_update_engine
45