1 files changed, 51 insertions, 0 deletions
diff --git a/gd/os/android/system_properties.cc b/gd/os/android/system_properties.cc
new file mode 100644
index 000000000..a53c1bf6d
--- /dev/null
+++ b/gd/os/android/system_properties.cc
@@ -0,0 +1,51 @@
+/*
+ * Copyright 2019 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 "os/system_properties.h"
+
+#include <cutils/properties.h>
+
+#include <array>
+
+#include "os/log.h"
+
+namespace bluetooth {
+namespace os {
+
+std::optional<std::string> GetSystemProperty(const std::string& property) {
+  std::array<char, PROPERTY_VALUE_MAX> value_array{0};
+  auto value_len = property_get(property.c_str(), value_array.data(), nullptr);
+  if (value_len <= 0) {
+    return std::nullopt;
+  }
+  return std::string(value_array.data(), value_len);
+}
+
+bool SetSystemProperty(const std::string& property, const std::string& value) {
+  if (value.size() >= PROPERTY_VALUE_MAX) {
+    LOG_ERROR("Property value's maximum size is %d, but %zu chars were given", PROPERTY_VALUE_MAX - 1, value.size());
+    return false;
+  }
+  auto ret = property_set(property.c_str(), value.c_str());
+  if (ret != 0) {
+    LOG_ERROR("Set property %s failed with error code %d", property.c_str(), ret);
+    return false;
+  }
+  return true;
+}
+
+}  // namespace os
+}  // namespace bluetooth
+\ No newline at end of file