Fold uevent message origin checking from init into libcutils.

Change-Id: I7cbc0cb840d1b4962e6c360fdad9a9c0ce20e87b
diff --git a/include/cutils/uevent.h b/include/cutils/uevent.h
new file mode 100644
index 0000000..587149c
--- /dev/null
+++ b/include/cutils/uevent.h
@@ -0,0 +1,32 @@
+/*
+ * Copyright (C) 2011 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.
+ */
+
+#ifndef __CUTILS_UEVENT_H
+#define __CUTILS_UEVENT_H
+
+#include <sys/socket.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+ssize_t uevent_checked_recv(int socket, void *buffer, size_t length);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __CUTILS_UEVENT_H */