This is a C++ class that implements a NTP client. It has been tested with a chrony server. I have also included a sample of my chrony.conf file where I have setup a local server and client for my experiments.

First create an empty directory inside your working folder:

mkdir build && cd build

and then

cmake ..

and

cmake --build .

Optional, if you want to install:

make install DESTDIR={YOUR_INSTALLATION_PATH}

By default, the installation path is /usr/local/

Part of the code has been based to C NTPClient by David Lettier

• UDP Server-Client implementation in C
• Let's make a NTP Client in C
• Technical information - NTP Data Packet

• Ubuntu Bionic: Using chrony to configure NTP (which works for Xenial as well)
• rosbee - chrony.wiki

MIT

Angelos Plastropoulos
Jairo Reyes