Return-Path: From: Luiz Augusto von Dentz To: linux-bluetooth@vger.kernel.org Subject: [RFC 5/9] android: Add cutils/properties.h Date: Thu, 17 Oct 2013 11:55:24 +0300 Message-Id: <1382000128-23762-6-git-send-email-luiz.dentz@gmail.com> In-Reply-To: <1382000128-23762-1-git-send-email-luiz.dentz@gmail.com> References: <1382000128-23762-1-git-send-email-luiz.dentz@gmail.com> Sender: linux-bluetooth-owner@vger.kernel.org List-ID: From: Luiz Augusto von Dentz --- android/cutils/properties.h | 65 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 65 insertions(+) create mode 100644 android/cutils/properties.h diff --git a/android/cutils/properties.h b/android/cutils/properties.h new file mode 100644 index 0000000..a9f7554 --- /dev/null +++ b/android/cutils/properties.h @@ -0,0 +1,65 @@ +/* + * 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. + */ + +#ifndef __CUTILS_PROPERTIES_H +#define __CUTILS_PROPERTIES_H + +#include +#include + +#ifdef __cplusplus +extern "C" { +#endif + +#define PROPERTY_KEY_MAX 32 +#define PROPERTY_VALUE_MAX 92 + +/* 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). +*/ +static inline int property_get(const char *key, char *value, + const char *default_value) +{ + const char *env; + + env = getenv(key); + if (!env) + env = default_value; + + if (!value) + return 0; + + strncpy(value, env, PROPERTY_VALUE_MAX); + + return strlen(value); +} + +/* property_set: returns 0 on success, < 0 on failure +*/ +static inline int property_set(const char *key, const char *value) +{ + return setenv(key, value, 0); +} + +#ifdef __cplusplus +} +#endif + +#endif -- 1.8.3.1