PROGRAMMING - Hacking: The Art of Exploitation - page 103

game_of_chance.c
#include <stdio.h>
#include <string.h>
#include <fcntl.h>
#include <sys/stat.h>
#include <time.h>
#include <stdlib.h>
#include "hacking.h"
#define DATAFILE "/var/chance.data" // File to store user data
// Custom user struct to store information about users
struct user {
int uid;
int credits;
int highscore;
char name[100];
int (*current_game) ();
};
// Function prototypes
int get_player_data();
void register_new_player();
void update_player_data();
void show_highscore();
void jackpot();
void input_name();
void print_cards(char *, char *, int);
int take_wager(int, int);
void play_the_game();
int pick_a_number();
int dealer_no_match();
int find_the_ace();
void fatal(char *);
// Global variables
struct user player; // Player struct
int main() {
int choice, last_game;
srand(time(0)); // Seed the randomizer with the current time.
if(get_player_data() == -1) // Try to read player data from file.
register_new_player(); // If there is no data, register a new player.
while(choice != 7) {
printf("-=[ Game of Chance Menu ]=-\n");
printf("1 - Play the Pick a Number game\n");
printf("2 - Play the No Match Dealer game\n");
printf("3 - Play the Find the Ace game\n");
printf("4 - View current high score\n");
printf("5 - Change your user name\n");