#include <stdio.h>
#include <stdlib.h>
#include <string.h>


typedef struct {
    char username[20];
    char password[16];
} Login;

char password[] = "follow_@wtfsper";

int check_password(Login *login) {

    int result = 0;
    char buff[16];

    printf("password: ");
    scanf("%s", buff);

    strcpy(login->password, buff);
    if(strncmp(login->password, password, sizeof(password)) == 0)
        result = 1;

    return result;


}

int main(int argc, char** argv) {

    Login l;

    printf("*****************************************************************\n");
    printf("*                WELCOME TO UNIVERSITY OF TEXAS(S)              *\n");
    printf("*                  GRADE REPORT SYSTEM - 3.2.1                  *\n");
    printf("*                                                               *\n");
    printf("*                      PLEASE LOGIN TO                          *\n");
    printf("*                       ACCESS GRADES                           *\n");
    printf("*****************************************************************\n");

    printf("username: ");

    scanf("%20s", l.username);
    int auth = check_password(&l);
    printf("%d\n", auth);
    if (auth == 0) {
        printf("auth failed :( \n");
        return 0;
    } else if (auth == 1) {
        system("cat grades.txt");
    } else if (auth == 2) {
        system("/bin/sh");
    }

    return 0;
}