// MousePas.C
// To compile with Turbo C++
//     tcc MousePas.c
// To comlile with Borland C++
//     bcc MousePas.c
#include <dos.h>	// i86
#include <conio.h>	// kbhit()
#include <string.h>	// strcmp()
#include <stdio.h>	// printf()

void instructions() {
		clrscr();
		printf("You will be prompted to enter a password.\n");
		printf("Click on the left and right mouse buttons.\n");
		printf("And their clicks will become part of the password.\n");
		printf("You must have a mouse driver loaded to use the mous.\n");
}

int get_button() {
		struct REGPACK regs;
		regs.r_ax = 3;
		regs.r_bx = regs.r_cx = regs.r_dx = regs.r_es = 0;
		regs.r_es = 0;
		intr(0x33, &regs);
		return regs.r_bx;
}

void get_mouse_string(char *string, int maxlen) {
		int i = 0, button;
		char key = 0;
		while (key != 13 && i < maxlen) {
				if (kbhit()) {
						key = getch();
						if (key != 13 && key > 2) {
								printf("*");
								string[i++] = key;
						}
				}
				else if ((button = get_button()) != 0) {
						if (button == 1) 
								printf("L");
						else 
								printf("R");
						string[i++] = button;
						while ((button = get_button()) != 0);
				}
		}
		string[i] = 0;
}

void main () {
		char password[128];
		char validate[128];
		instructions();
		printf("Enter a password: ");
		get_mouse_string(password, 127);
		// This is the cool part!
		printf("\nValidate password: ");
		get_mouse_string(validate, 127);
		if (strcmp(password, validate)) 
				printf("\n\nValidation FAILED\n");
		else 
				printf("\n\nValidation PASSWD\n");
}