[Haskell-cafe] Disable echo in POSIX terminal
alfonso.acosta at gmail.com
Fri Nov 9 11:41:11 EST 2007
I this there's no need for a binding
How about this?
import Control.Monad (when)
getpasswd :: Handle -> IO String
getpasswd h = do wasEnabled <- hGetEcho h
when wasEnabled (hSetEcho h False)
str <- hGetLine h
when wasEnabled (hSetEcho h True)
On Nov 9, 2007 5:20 PM, Thomas Schilling <nominolo at googlemail.com> wrote:
> On Fri, 2007-11-09 at 10:59 -0500, Taylor Venable wrote:
> > Hello all,
> > I've written a little Haskell program to get information from a MySQL
> > database (great thanks to anybody reading this who works on HSQL, by
> > the way) but I want to keep the user's password concealed, obviously.
> > Currently I prompt for it from the terminal, but the problem is that
> > it's echoed just like all other input. I would like to disable input
> > echo when asking for the password, but I'm not sure how. I notice
> > there's a System.POSIX.Terminal module, but I have no idea how to use
> > it, or whether it will do what I want. Any ideas would be greatly
> > appreciated.
> > Best regards.
> In C you usually use: getpasswd
> I cannot find it System.Posix, so you might have to write your own FFI
> bindings. Otherwise, you can play around with the terminal modes from:
> Good luck!
> Haskell-Cafe mailing list
> Haskell-Cafe at haskell.org
More information about the Haskell-Cafe