Password Protection

[devilman]

I want to make

my console program password protected,

where I can write the password but

the text that I write will not appear

instead it should show ' * ' and when I press

enter it should test the password if it is

correct,and when I press delete or backspace

it should decrease the number of the * on the

screen.

For example :

in one moment I have pressed :

==>>protected -- 9 caracters

// in the display are shown 9 " * " like this :

==>>*********

when I press delete or backspace

the text now is ==>>protecte d--was deleted

and in the screen now are shown 8 " * "

An another problem that I have is that I cant make

my program to test the password when I press !! enter !!

,with other keys like space , tab , esc , ect.. I can and

it works correctly but with enter not

If someone can help me please give me an idea.

[kranny]

If you are working on windows system,use getch() to not display the character and
cout<<"*";
Since there is no getch() in UNIX,try turning off the echo attribute of the console by using system("stty -echo"), then reading the input a character at a time, and reenabling the echo afterwards.

Also try using getpass() function which leaves its result in an internal static object and returns a pointer to that object

[Duthomhas]

Stars are often used, but a bad idea. I suggest you avoid them. Instead, just turn off echo.
http://www.cplusplus.com/forum/general/12256/page1.html#msg58590

If you are sticking to Windows, you can use this:
http://www.cplusplus.com/forum/general/3570/page1.html#msg15410

You can also play with the following for getting unbuffered input:
http://www.cplusplus.com/forum/articles/7312/page1.html#msg33734

Good luck!

[Null]

How about this crappy code?

#include <conio.h>
#include <iostream>
#include <cstdlib>
using namespace std;
int main()
{
char ch;
char buff[100];
char *password="asilas";
int pos=0;

while(true)
{
ch=getch();
if(ch==13) break; // enter was pressed
if(ch==8) { // discard * and char from buffer
cout <<"\b \b"; buff[pos-1]='\0'; pos--; }
else { // display * and put char to buffer
 cout<<"*"; buff[pos]=ch; buff[pos+1]='\0'; pos++;
}
if(pos<=0) pos=0;
}
if(strcmp(password,buff)==0) cout <<"\ncorrect password";
getch();
}

[mcleano]

@Null... Why offer it when you think it's crappy yourself?

[efeX]

Null

Nice C...