[gentoo-user] Any way to automate login to host and su to root?

[J. Roeleveld]

Hi All,

I am looking for a way to login to a host and automatically change to root 
using a password provided by an external program. 

The root passwords are stored in a vault and I can get passwords out using a 
script after authenticating.

Currently, I need to do a lot of the steps manually:
ssh <user>@<host>
su -
(copy/paste password from vault)

I would like to change this to:
<some-script> <host>

Does anyone have any hints on how to achieve this without adding a "NOPASSWD" 
entry into /etc/sudoers ?

Thanks in advance,

Joost