password_tutorial.c


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

int check_authentication(char *password) {
    	int auth_flag = 0;
    	char password_buffer[16];
    	int auth_flag2 = 0;
    	strcpy(password_buffer, password);

    	if(strcmp(password_buffer, "brillig") == 0)
        	auth_flag = 1;
    	if(strcmp(password_buffer, "outgrabe") == 0)
        	auth_flag = 1;

    	return auth_flag | auth_flag2;
}

int main(int argc, char *argv[]) {
    	if(argc < 2) {
        	printf("Usage: %s <password>\n", argv[0]);
        	exit(0);
    	}
    	if(check_authentication(argv[1])) {
        	printf("\n-=-=-=-=-=-=-=-=-=-=-=-=-=-\n");
        	printf("      Access Granted.\n");
        	printf("-=-=-=-=-=-=-=-=-=-=-=-=-=-\n");
    	} else {
        	printf("\nAccess Denied.\n");
   	}
}