Tasmota/lib/lib_div/ArduinoNTPd/NTPPacket.cpp

40 lines
1005 B
C++

/*
* File: NTPPacket.cpp
* Description:
* NTP packet representation.
* Author: Mooneer Salem <mooneer@gmail.com>
* License: New BSD License
*/
#include "NTPPacket.h"
void NtpPacket::swapEndian()
{
reverseBytes_(&rootDelay);
reverseBytes_(&rootDispersion);
reverseBytes_(&referenceTimestampSeconds);
reverseBytes_(&referenceTimestampFraction);
reverseBytes_(&originTimestampSeconds);
reverseBytes_(&originTimestampFraction);
reverseBytes_(&receiveTimestampSeconds);
reverseBytes_(&receiveTimestampFraction);
reverseBytes_(&transmitTimestampSeconds);
reverseBytes_(&transmitTimestampFraction);
}
void NtpPacket::reverseBytes_(uint32_t *number)
{
char buf[4];
char *numberAsChar = (char*)number;
buf[0] = numberAsChar[3];
buf[1] = numberAsChar[2];
buf[2] = numberAsChar[1];
buf[3] = numberAsChar[0];
numberAsChar[0] = buf[0];
numberAsChar[1] = buf[1];
numberAsChar[2] = buf[2];
numberAsChar[3] = buf[3];
}