[PATCH] su: support denying accounts with blank password

[Isaac Dunham]

On Tue, Jun 09, 2015 at 01:06:05PM +0200, Natanael Copa wrote:
> Add a compile time option to disallow switching to an account with blank
> password.

And how does one set the root password, if you blank the root password?
Wouldn't this result in a system that's permanently unadministrable
unless you recover via init=/bin/sh, chroot, or such?

Or is blanking the root password completely wrong?

Thanks,
Isaac Dunham