1 /*
2 * Copyright (C) 2015 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 <string.h>
18
19 #include <string>
20 #include <unordered_map>
21
22 #include <sys/system_properties.h>
23
24 std::unordered_map<std::string, std::string> g_properties;
25
property_set(const char * name,const char * value)26 extern "C" int property_set(const char* name, const char* value) {
27 if (g_properties.count(name) != 0) {
28 g_properties.erase(name);
29 }
30 g_properties[name] = value;
31 return 0;
32 }
33
property_get(const char * key,char * value,const char * default_value)34 extern "C" int property_get(const char* key, char* value, const char* default_value) {
35 if (g_properties.count(key) == 0) {
36 if (default_value == nullptr) {
37 return 0;
38 }
39 strncpy(value, default_value, PROP_VALUE_MAX-1);
40 } else {
41 strncpy(value, g_properties[key].c_str(), PROP_VALUE_MAX-1);
42 }
43 value[PROP_VALUE_MAX-1] = '\0';
44 return strlen(value);
45 }
46