Implement property_get() for the compatibility library.

Bug: 10315692

This change also allows us to remove the dependency on libcutils for the
compatibility library. The implementation is the exact version that is in
libcutils.

Change-Id: If285962d6631cf9ca1030718c436e122f9be1d4f

1 files changed, 36 insertions, 0 deletions

diff --git a/rsCompatibilityLib.cpp b/rsCompatibilityLib.cpp
new file mode 100644
index 00000000..fa9f07e6
--- /dev/null
+++ b/rsCompatibilityLib.cpp
@@ -0,0 +1,36 @@
+/*
+ * Copyright (C) 2013 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 "rsCompatibilityLib.h"
+#include <string.h>
+#include <sys/system_properties.h>
+
+// Implementation of property_get from libcutils
+int property_get(const char *key, char *value, const char *default_value) {
+    int len;
+
+    len = __system_property_get(key, value);
+    if (len > 0) {
+        return len;
+    }
+
+    if (default_value) {
+        len = strlen(default_value);
+        memcpy(value, default_value, len + 1);
+    }
+    return len;
+}
+