sven/libicsneo
1
0
Fork 0
mirror of https://github.com/intrepidcs/libicsneo.git synced 2026-08-05 01:18:36 +02:00
Code Issues Projects Releases Wiki Activity

Refactor ICSChecksum and packetWrap into the Packetizer

Browse Source
This commit is contained in:
Paul Hollinsky
2018-09-25 17:50:58 -04:00
parent aa25ba1728
commit 28de70aa05
6 changed files with 32 additions and 26 deletions
Download Patch File Download Diff File Expand all files Collapse all files
communication/packetizer.cpp
+18
View File
@@ -3,6 +3,24 @@
using namespace icsneo;
uint8_t Packetizer::ICSChecksum(const std::vector<uint8_t>& data) {
uint32_t checksum = 0;
for(auto i = 0; i < data.size(); i++)
checksum += data[i];
checksum = ~checksum;
checksum++;
return (uint8_t)checksum;
}
std::vector<uint8_t>& Packetizer::packetWrap(std::vector<uint8_t>& data) {
if(!disableChecksum)
data.push_back(ICSChecksum(data));
data.insert(data.begin(), 0xAA);
if(align16bit && data.size() % 2 == 1)
data.push_back('A');
return data;
}
bool Packetizer::input(const std::vector<uint8_t>& inputBytes) {
bool haveEnoughData = true;
bytes.insert(bytes.end(), inputBytes.begin(), inputBytes.end());