Thread: Program : enter a password

HIII
i look for a way to write a function that hide the characters and replaces them by "*"
also using the secure text input to avoid buffer problem
So I wrote the code for the secure text input

here is the code :

Code:

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


void empty_buffer()
{
    int c = 0;
    while (c != '\n' && c != EOF)
    {
        c = getchar();
    }
}


int readpsw(char *chaine,int length)
{
    char *carac;


    if(fgets(chaine,length,stdin)!=NULL)
    {


        carac=strchr(chaine,'/n');
        if(carac!= NULL)
        {
            *carac='/0';
        }else
        {
            empty_buffer();
        }


    }


    else
    {
       empty_buffer();
    }


}


int main ( int argc, char** argv )


{


char psw[100];
printf("enter a password   :");
readpsw(psw,21);
        return 0;


 }

any suggestion ?

Thank you @stahta01 indeed i use Code::Blocks(MinGW/GCC)

can someone give me a little hand ^^

You didn't answer Salem's question about which OS you are using. You can find an example of what you're looking for here: FAQ > How can I get input without having the user hit [Enter]? - Cprogramming.com

You will need to disable echoing of user input on the console which, as Salem mentioned, is OS/compiler specific. Take a look at the Windows API documentation, specifically console functions: Console Functions (Windows). Find ones that have promising names for what you want to do, and read through their documentation, to see if they indeed will work for you. You're probably looking for something like "disable echo" or some such, which will prevent the console from echoing back the characters the user types. Note, that may not be in the function name, but rather in the documentation for a different function, that sets all the modes/attributes.

No i did
OS/Compiler : Code::Blocks(MinGW/GCC)
"for '/n' and '\n' i think maybe there are similar ^^" actually i don't know what's the difference i just found it on the internet

Thank you guys i'm gonna do some research , i hope that i'll find the solution

Actually Matticus, Code::Blocks is an IDE. MinGW (if that is what he is using) is the compiler, which would imply the OS is Windows. However, if the compiler is GCC, we can only guess it's probably some *NIX system. Still, slyer4ever, you should have mentioned all that explicitly. It's not hard to type "OS: Windows 7".

Actually Matticus, Code::Blocks is an IDE.

Yikes! I knew that! How embarrassing - my brain must have been focused elsewhere as I was typing that...

My OS : "Windows xp" this is a little old school