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hiding password input

how can I hide, or mask with asterisks, the user input to a C program, such as an input password?
I want to collect the user input, but not have it visable on the terminal screen.

Comments

  • GabeGabe Member Posts: 61
    Hi!

    I think you should use the [italic]char *getpass(const char *prompt);[/italic] function defined in [italic]unistd.h[/italic].

    For example:
    [code]
    #include
    #include

    int main()
    {
    char *pass;

    pass=getpass("Enter your password:");

    printf("
    The password you entered:%s
    ",pass);

    return 0;
    }
    [/code]
    IMPORTANT!!

    This function returns a pointer to it's own allocated memory. So you MUST copy the string into an another memory area otherwise the next call to [italic]getpass[/italic] will destroy the previos value!

    Gabe
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