Please locate the incorrect error. We have made many ports, but all are still the same. The output that comes out is "error connection refused (ip address are correct and port are changed but still error)" Server C #include #include #include #include #include #include #include #define PORT 8080 #define MAX_LEN 1024 int main() { int server_socket, client_socket, pid; struct sockaddr_in server_address, client_address; socklen_t client_len = sizeof(client_address); char buffer[MAX_LEN]; // Create a socket if ((server_socket = socket(AF_INET, SOCK_STREAM, 0)) < 0) { perror("socket creation failed"); exit(EXIT_FAILURE); } // Bind socket to a specific address and port server_address.sin_family = AF_INET; server_address.sin_port = htons(PORT); server_address.sin_addr.s_addr = htonl(INADDR_ANY); if (bind(server_socket, (struct sockaddr*) &server_address, sizeof(server_address)) < 0) { perror("bind failed"); exit(EXIT_FAILURE); } // Listen for incoming connections if (listen(server_socket, 5) < 0) { perror("listen failed"); exit(EXIT_FAILURE); } // Loop to handle incoming connections while (1) { // Accept incoming connection if ((client_socket = accept(server_socket, (struct sockaddr*) &client_address, &client_len)) < 0) { perror("accept failed"); continue; } // Use fork to handle incoming connection pid = fork(); if (pid == 0) { // Child process close(server_socket); // Read incoming data from client memset(buffer, 0, MAX_LEN); if (read(client_socket, buffer, MAX_LEN) < 0) { perror("read failed"); exit(EXIT_FAILURE); } // Combine incoming data with string "from server xyz" strcat(buffer, " from server xyz"); // Write combined data back to client if (write(client_socket, buffer, strlen(buffer)) < 0) { perror("write failed"); exit(EXIT_FAILURE); } close(client_socket); exit(EXIT_SUCCESS); } else if (pid > 0) { // Parent process close(client_socket); } else { perror("fork failed"); } } return 0; } ======================= Client Python ======================= import socket c = socket.socket(socket.AF_INET, socket.SOCK_STREAM) c.connect(("172.104.177.86", 8080)) #Compose a string from user input request=input("Enter a message to send to the server: ") #send user input string to the server c.send(request.encode()) #print incoming input string to the server response = c.recv(1024).decode() print(f"Server reply: {response}") c.close()
