client.cpp

#include <iostream>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <cstring>
#include <linux/if_ether.h>

int main() {

    // probably completely wrong
    int socketfd = socket(AF_PACKET, SOCK_RAW, htons(ETH_P_IP));
    if (socketfd < 0) {
        std::cout << "socket could not be created\n";
        exit(-1);
    } else {
        std::cout << "socket created successfully\n";
    }

    struct sockaddr_in server_addr;
    server_addr.sin_family = AF_INET;
    server_addr.sin_port = 0;
    inet_pton(AF_INET, "127.0.0.1", &server_addr.sin_addr);

    sendto(socketfd, "text", strlen("text"), 0, (sockaddr *) &server_addr, sizeof(server_addr));

    return 0;
}