Add android_get_device_api_level.

Bug: http://b/113615412
Test: ran tests
Change-Id: I0a7ae336c96c9ed6543b6935cbc242d14d4a4a67

1 files changed, 48 insertions, 0 deletions

diff --git a/libc/include/bits/get_device_api_level_inlines.h b/libc/include/bits/get_device_api_level_inlines.h
new file mode 100644
index 000000000..8e1781471
--- /dev/null
+++ b/libc/include/bits/get_device_api_level_inlines.h
@@ -0,0 +1,48 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#pragma once
+
+#include <stdlib.h>
+#include <sys/cdefs.h>
+#include <sys/system_properties.h>
+
+#if !defined(__BIONIC_GET_DEVICE_API_LEVEL_INLINE)
+#define __BIONIC_GET_DEVICE_API_LEVEL_INLINE static __inline
+#endif
+
+__BEGIN_DECLS
+
+__BIONIC_GET_DEVICE_API_LEVEL_INLINE int android_get_device_api_level() {
+  char value[PROP_VALUE_MAX] = { 0 };
+  if (__system_property_get("ro.build.version.sdk", value) < 1) return -1;
+  int api_level = atoi(value);
+  return (api_level > 0) ? api_level : -1;
+}
+
+__END_DECLS