text: /**
   ******************************************************************************
   * @file    RecordAAR.cpp
   * @author  ST / Central Labs
   * @version V2.0.0
   * @date    28 Apr 2017
   * @brief   RecordAAR implementation.
   ******************************************************************************
   * @attention
   *
   * <h2><center>&copy; COPYRIGHT(c) 2015 STMicroelectronics</center></h2>
   *
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   *      this list of conditions and the following disclaimer.
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   *      this list of conditions and the following disclaimer in the documentation
   *      and/or other materials provided with the distribution.
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   *      may be used to endorse or promote products derived from this software
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   *
   * 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 HOLDER OR CONTRIBUTORS BE LIABLE
   * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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   ******************************************************************************
   */
  #include <cstring>
  #include "RecordAAR.h"
  
  namespace NDefLib {
  
  const char RecordAAR::sRecordType[] = { 'a', 'n', 'd', 'r', 'o', 'i', 'd', '.',
  		'c', 'o', 'm', ':', 'p', 'k', 'g' };
  
  RecordAAR::RecordAAR(const std::string &packageName) :
  		mPackageName(packageName) {
  	mRecordHeader.set_FNT(RecordHeader::NFC_external);
  	mRecordHeader.set_type_length(sizeof(sRecordType));
  	mRecordHeader.set_payload_length(mPackageName.size());
  
  }
  
  uint16_t RecordAAR::write(uint8_t *buffer) {
  	uint16_t offset = 0;
  	offset += mRecordHeader.write_header(buffer);
  	std::memcpy(buffer + offset, sRecordType, sizeof(sRecordType));
  	offset += sizeof(sRecordType);
  	std::memcpy(buffer + offset, mPackageName.c_str(), mPackageName.size());
  	offset += mPackageName.size();
  	return offset;
  }
  
  RecordAAR* RecordAAR::parse(const RecordHeader &header,
  		const uint8_t *buffer) {
  	uint8_t offset = 0;
  	if ((header.get_FNT() != RecordHeader::NFC_external)
  			&& (header.get_type_length() != sizeof(sRecordType))) {
  		return NULL;
  	} //else
  
  	if (std::memcmp(buffer + offset, sRecordType, sizeof(sRecordType)) != 0) {
  		return NULL;
  	} //else tagType == android.com:pkg
  
  	offset += sizeof(sRecordType);
  
  	return new RecordAAR(
  			std::string((const char*) buffer + offset,
  					header.get_payload_length()));
  }
  
  } /* namespace NDefLib */
  