--- /dev/null
+/*
+ * Copyright (C) 2006 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.
+ */
+
+#pragma once
+
+#include <sys/cdefs.h>
+#include <stddef.h>
+#include <stdint.h>
+
+#if __has_include(<sys/system_properties.h>)
+#include <sys/system_properties.h>
+#else
+#define PROP_VALUE_MAX 92
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+//
+// Deprecated.
+//
+// See <android-base/properties.h> for better API.
+//
+
+#define PROPERTY_KEY_MAX PROP_NAME_MAX
+#define PROPERTY_VALUE_MAX PROP_VALUE_MAX
+
+/* property_get: returns the length of the value which will never be
+** greater than PROPERTY_VALUE_MAX - 1 and will always be zero terminated.
+** (the length does not include the terminating zero).
+**
+** If the property read fails or returns an empty value, the default
+** value is used (if nonnull).
+*/
+int property_get(const char* key, char* value, const char* default_value);
+
+/* property_get_bool: returns the value of key coerced into a
+** boolean. If the property is not set, then the default value is returned.
+**
+* The following is considered to be true (1):
+** "1", "true", "y", "yes", "on"
+**
+** The following is considered to be false (0):
+** "0", "false", "n", "no", "off"
+**
+** The conversion is whitespace-sensitive (e.g. " off" will not be false).
+**
+** If no property with this key is set (or the key is NULL) or the boolean
+** conversion fails, the default value is returned.
+**/
+int8_t property_get_bool(const char *key, int8_t default_value);
+
+/* property_get_int64: returns the value of key truncated and coerced into a
+** int64_t. If the property is not set, then the default value is used.
+**
+** The numeric conversion is identical to strtoimax with the base inferred:
+** - All digits up to the first non-digit characters are read
+** - The longest consecutive prefix of digits is converted to a long
+**
+** Valid strings of digits are:
+** - An optional sign character + or -
+** - An optional prefix indicating the base (otherwise base 10 is assumed)
+** -- 0 prefix is octal
+** -- 0x / 0X prefix is hex
+**
+** Leading/trailing whitespace is ignored. Overflow/underflow will cause
+** numeric conversion to fail.
+**
+** If no property with this key is set (or the key is NULL) or the numeric
+** conversion fails, the default value is returned.
+**/
+int64_t property_get_int64(const char *key, int64_t default_value);
+
+/* property_get_int32: returns the value of key truncated and coerced into an
+** int32_t. If the property is not set, then the default value is used.
+**
+** The numeric conversion is identical to strtoimax with the base inferred:
+** - All digits up to the first non-digit characters are read
+** - The longest consecutive prefix of digits is converted to a long
+**
+** Valid strings of digits are:
+** - An optional sign character + or -
+** - An optional prefix indicating the base (otherwise base 10 is assumed)
+** -- 0 prefix is octal
+** -- 0x / 0X prefix is hex
+**
+** Leading/trailing whitespace is ignored. Overflow/underflow will cause
+** numeric conversion to fail.
+**
+** If no property with this key is set (or the key is NULL) or the numeric
+** conversion fails, the default value is returned.
+**/
+int32_t property_get_int32(const char *key, int32_t default_value);
+
+/* property_set: returns 0 on success, < 0 on failure
+*/
+int property_set(const char *key, const char *value);
+
+int property_list(void (*propfn)(const char *key, const char *value, void *cookie), void *cookie);
+
+#if defined(__BIONIC_FORTIFY)
+#define __property_get_err_str "property_get() called with too small of a buffer"
+
+#if defined(__clang__)
+
+/* Some projects use -Weverything; diagnose_if is clang-specific. */
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wgcc-compat"
+int property_get(const char* key, char* value, const char* default_value)
+ __clang_error_if(__bos(value) != __BIONIC_FORTIFY_UNKNOWN_SIZE &&
+ __bos(value) < PROPERTY_VALUE_MAX,
+ __property_get_err_str);
+#pragma clang diagnostic pop
+
+#else /* defined(__clang__) */
+
+extern int __property_get_real(const char *, char *, const char *)
+ __asm__(__USER_LABEL_PREFIX__ "property_get");
+__errordecl(__property_get_too_small_error, __property_get_err_str);
+
+__BIONIC_FORTIFY_INLINE
+int property_get(const char *key, char *value, const char *default_value) {
+ size_t bos = __bos(value);
+ if (bos < PROPERTY_VALUE_MAX) {
+ __property_get_too_small_error();
+ }
+ return __property_get_real(key, value, default_value);
+}
+
+#endif /* defined(__clang__) */
+
+#undef __property_get_err_str
+#endif /* defined(__BIONIC_FORTIFY) */
+
+#ifdef __cplusplus
+}
+#endif