add copyright file header

Author: NikolasK-source

src/Modbus_TCP_Slave.cpp

@@ -1,3 +1,8 @@
+/*
+ * Copyright (C) 2021-2022 Nikolas Koesling <nikolas@koesling.info>.
+ * This program is free software. You can redistribute it and/or modify it under the terms of the MIT License.
+ */
+
 #include "Modbus_TCP_Slave.hpp"
 
 #include <stdexcept>

src/Modbus_TCP_Slave.hpp

@@ -1,3 +1,8 @@
+/*
+ * Copyright (C) 2021-2022 Nikolas Koesling <nikolas@koesling.info>.
+ * This program is free software. You can redistribute it and/or modify it under the terms of the MIT License.
+ */
+
 #pragma once
 
 #include <modbus/modbus.h>

src/license.cpp

@@ -1,3 +1,8 @@
+/*
+ * Copyright (C) 2022 Nikolas Koesling <nikolas@koesling.info>.
+ * This program is free software. You can redistribute it and/or modify it under the terms of the MIT License.
+ */
+
 #include "license.hpp"
 
 void print_licenses(std::ostream &o) {

src/license.hpp

@@ -1,5 +1,14 @@
+/*
+ * Copyright (C) 2022 Nikolas Koesling <nikolas@koesling.info>.
+ * This program is free software. You can redistribute it and/or modify it under the terms of the MIT License.
+ */
+
 #pragma once
 
 #include <ostream>
 
+/**
+ * \brief print licences
+ * @param o output stream used to print licenses
+ */
 void print_licenses(std::ostream &o);

src/main.cpp

@@ -1,3 +1,8 @@
+/*
+ * Copyright (C) 2021-2022 Nikolas Koesling <nikolas@koesling.info>.
+ * This program is free software. You can redistribute it and/or modify it under the terms of the MIT License.
+ */
+
 #include <csignal>
 #include <cxxopts.hpp>
 #include <filesystem>

src/modbus_shm.cpp

@@ -1,7 +1,11 @@
+/*
+ * Copyright (C) 2021-2022 Nikolas Koesling <nikolas@koesling.info>.
+ * This program is free software. You can redistribute it and/or modify it under the terms of the MIT License.
+ */
+
 #include "modbus_shm.hpp"
 
 #include <fcntl.h>
-#include <iostream>
 #include <stdexcept>
 #include <sys/mman.h>
 #include <system_error>

src/modbus_shm.hpp

@@ -1,3 +1,8 @@
+/*
+ * Copyright (C) 2021-2022 Nikolas Koesling <nikolas@koesling.info>.
+ * This program is free software. You can redistribute it and/or modify it under the terms of the MIT License.
+ */
+
 #pragma once
 
 #include "modbus/modbus.h"