C++程序  |  41行  |  1.09 KB

/*
 * 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;
#ifndef __LP64__
    len = __system_property_get(key, value);
#else
    len = 0;
#endif
    if (len > 0) {
        return len;
    }

    if (default_value) {
        len = strlen(default_value);
        memcpy(value, default_value, len + 1);
    }
    return len;

}