윈도우즈 콘솔에서 비밀번호

#include <stdio.h>
#include <windows.h>
int main ()
{
     char buf[1000];
     int len = 0, c;
     DWORD mode;
     printf ("Password: ");
     fflush (stdout);
     GetConsoleMode (GetStdHandle(STD_INPUT_HANDLE), &mode);
     mode &= ~ENABLE_ECHO_INPUT;
     mode |= ENABLE_LINE_INPUT;
     SetConsoleMode (GetStdHandle(STD_INPUT_HANDLE), mode);
     while ((c = getchar ()) != '\n' && c != EOF) buf[len++] = c;
     buf[len] = '\0';
     printf ("\n(%s)\n", buf);
     return 0;
}