Hide password input on terminal

Question

I want to mask my password while writing it with *. I use Linux GCC for this code. I know one solution is to use getch() function like this

Answer 1

In C you can use getpasswd() function which pretty much doing similar thing as stty in shell, example:

#include 
#include 
#include 
#include 

int main()
{
    char acct[80], password[80];

    printf(“Account: “);
    fgets(acct, 80, stdin);

    acct[strlen(acct)-1] = 0; /* remove carriage return */

    strncpy(password, getpass(“Password: “), 80);
    printf(“You entered acct %s and pass %s\n”, acct, password);

    return 0;
}

Here is equivalent shell script which use stty (which changes the settings of your tty):

save_state=$(stty -g)
/bin/echo -n “Account: “
read acct
/bin/echo -n “Password: “
stty -echo
read password # this won’t echo
stty “$save_state”
echo “”
echo account = $acct and password = $password

Source: How can I read a password without echoing it in C?