Making chars disappear

[Richard A. O'Keefe]

In article <22233 at hydra.gatech.EDU>, ccastdf at prism.gatech.EDU (Dave) writes:
> In article <8531 at castle.ed.ac.uk> james at castle.ed.ac.uk (J Gillespie) writes:
> >Does anyone know of a way to prevent characters being echoed as they
> >are typed in?

> In unix, you need to set the mode to raw.  This can be done by invoking
> an ioctl command, or by isuing an stty system call.

(a) This is a system-specific question, and should be asked in an
    appropriate system-specific newsgroup.
(b) Check "getpass" in section 3 of the UNIX manual
(c) The claim that you have to go into "raw" mode in UNIX is *BOGUS*.
    It simply is not true.  It's ever so simple:
	system("stty -echo");	/* disables echoing */
	system("stty echo");	/* enables it again */
    other aspects, such as editing characters, are NOT affected by this.
    The *only* thing that is switched off is echoing.  (Do be careful
    to switch it back on even if you get a "drop dead" signal.)

-- 
Professional programming is paranoid programming