#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <arpa/inet.h>

size_t ticket_number = 0;

void issue_ticket(int client_socket) {
    char buffer[100];
    snprintf(buffer, sizeof(buffer), "Your ticket number is %zu\n", 
             ticket_number++);
    send(client_socket, buffer, strlen(buffer), 0);
    close(client_socket);
}

int main() {
    struct sockaddr_in server_addr;
    int server_socket = socket(PF_INET, SOCK_STREAM, 0);
    // Set up the server socket
    server_addr.sin_family = AF_INET;
    server_addr.sin_addr.s_addr = INADDR_ANY;
    server_addr.sin_port = htons(12345);
    bind(server_socket, (struct sockaddr*)&server_addr, sizeof(server_addr));
    listen(server_socket, 5);

    while (1) {
        int client_socket = accept(server_socket, NULL, NULL);
        issue_ticket(client_socket);
    }

    return 0;
}