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

const char *password = "23door42\n";

int main(void) {
    size_t input_size = 0;
    char *input_line = NULL;

    printf("Please enter Password: ");

    // read in password from standard input, exit on error.
    if (getline(&input_line, &input_size, stdin) == -1) {
        perror("Error");
        exit(EXIT_FAILURE);
    }

    // compare password, print info, exit appropriately
    if (strcmp(input_line, password) == 0) {
        puts("Success!");
        exit(EXIT_SUCCESS);
    } else {
        puts("How about no?!");
        exit(EXIT_FAILURE);
    }
}