J2S1-Kobuki/src/C++/Socket/main.cpp

#include <cstring>
#include <iostream>
#include <netinet/in.h>
#include <sys/socket.h>
#include <unistd.h>

int serverSocket = socket(AF_INET, SOCK_STREAM, 0);

using namespace std;

int main()
{
    sockaddr_in serverAddress;
    serverAddress.sin_family = AF_INET;
    serverAddress.sin_port = htons(4204);
    serverAddress.sin_addr.s_addr = INADDR_ANY;

    bind(serverSocket, (struct sockaddr *)&serverAddress, sizeof(serverAddress));

    listen(serverSocket, 5);

    int clientSocket = accept(serverSocket, nullptr, nullptr);

    char buffer[1024] = {0};
    recv(clientSocket, buffer, sizeof(buffer), 0);
    cout << "Message from client: " << buffer << endl;


    close(serverSocket);
    return 0;
}

// https://www.geeksforgeeks.org/socket-programming-in-cpp/