55 lines
2.0 KiB
C++
55 lines
2.0 KiB
C++
/*
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* Copyright (c) 2023 Fancy Code.
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "LittleEndianHandle.h"
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#include "ILog.h"
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#include "ModBusCRC16.h"
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#include <netinet/in.h>
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#include <string.h>
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LittleEndianHandle::LittleEndianHandle(const std::shared_ptr<VProtocolParam> ¶m) : ProtocolHandle(param)
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{
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}
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LittleEndianHandle::LittleEndianHandle(const void *data, const size_t &length) : ProtocolHandle(data, length)
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{
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}
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void LittleEndianHandle::BigEndianConversion(ProtocolPacket &packet)
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{
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packet.mHead = htons(packet.mHead);
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packet.mCommand = htons(packet.mCommand);
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packet.mLength = htons(packet.mLength);
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packet.mCheckCode = htons(packet.mCheckCode);
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packet.mSerialNumber = htonl(packet.mSerialNumber);
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}
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short LittleEndianHandle::BigEndianConversion(const short &number)
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{
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return htons(number);
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}
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void LittleEndianHandle::HostByteOrderConversion(ProtocolPacket &packet)
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{
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packet.mHead = ntohs(packet.mHead);
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packet.mCommand = ntohs(packet.mCommand);
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packet.mLength = ntohs(packet.mLength);
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packet.mCheckCode = ntohs(packet.mCheckCode);
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packet.mSerialNumber = ntohl(packet.mSerialNumber);
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}
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bool LittleEndianHandle::CheckoutTheCheckCode(const ProtocolPacket &packet)
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{
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ProtocolHandle::PrintHexadecimalData(&packet.mCheckCode, CHECK_CODE_LENGTH, "CheckoutTheCheckCode little endian:");
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short code = calculate_check_sum(mProtocolData, mProtocolDataLength - sizeof(short));
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// code = ntohs(code); // TODO:
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if (code == packet.mCheckCode) {
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return true;
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}
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return false;
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} |