server_6.c

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

#define PORT 8080

int main() {
    int server_fd, new_socket;
    struct sockaddr_in address;
    int opt = 1;
    int addrlen = sizeof(address);
    srand(time(0)); 

    if ((server_fd = socket(AF_INET, SOCK_STREAM, 0)) == 0) {
        perror("socket failed");
        exit(EXIT_FAILURE);
    }

    address.sin_family = AF_INET;  // IPv4
    address.sin_addr.s_addr = INADDR_ANY;
    address.sin_port = htons(PORT); 

    if (bind(server_fd, (struct sockaddr *)&address, sizeof(address)) < 0) {
        perror("bind failed");
        close(server_fd);
        exit(EXIT_FAILURE);
    }

    if (listen(server_fd, 3) < 0) {
        perror("listen failed");
        close(server_fd);
        exit(EXIT_FAILURE);
    }

    std::cout << "Server is listening on port " << PORT << std::endl;

    if ((new_socket = accept(server_fd, (struct sockaddr *)&address, (socklen_t*)&addrlen)) < 0) {
        perror("accept failed");
        close(server_fd);
        exit(EXIT_FAILURE);
    }

    while (true) {
        int random_number = rand() % 100;
        if (write(new_socket, &random_number, sizeof(random_number)) == -1) {
            perror("write failed");
            close(new_socket);
            close(server_fd);
            exit(EXIT_FAILURE);
        }
        std::cout << "Sent: " << random_number << std::endl;
        sleep(1);
    }

    close(new_socket);
    close(server_fd);
    return 0;
}