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56 lines
2.4 KiB
C++
56 lines
2.4 KiB
C++
/*
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* Copyright (C) 2008 The Android Open Source Project
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include "system_properties/prop_info.h"
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#include <string.h>
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constexpr static const char kLongLegacyError[] =
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"Must use __system_property_read_callback() to read";
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static_assert(sizeof(kLongLegacyError) < prop_info::kLongLegacyErrorBufferSize,
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"Error message for long properties read by legacy libc must fit within 56 chars");
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prop_info::prop_info(const char* name, uint32_t namelen, const char* value, uint32_t valuelen) {
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memcpy(this->name, name, namelen);
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this->name[namelen] = '\0';
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atomic_init(&this->serial, valuelen << 24);
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memcpy(this->value, value, valuelen);
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this->value[valuelen] = '\0';
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}
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prop_info::prop_info(const char* name, uint32_t namelen, uint32_t long_offset) {
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memcpy(this->name, name, namelen);
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this->name[namelen] = '\0';
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auto error_value_len = sizeof(kLongLegacyError) - 1;
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atomic_init(&this->serial, error_value_len << 24 | kLongFlag);
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memcpy(this->long_property.error_message, kLongLegacyError, sizeof(kLongLegacyError));
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this->long_property.offset = long_offset;
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}
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