This is an auth daemon to be run under inet.d.

Accepts username and password, returns OK: role

Service file:

service sgauthd
{
        disable         = no
        port            = 4017
        socket_type     = stream
        user            = sg
        protocol        = tcp
        wait            = no
        instances       = 5
        only_from       = 127.0.0.1
        server          = /usr/bin/timeout
        server_args     = 1s /s/sg/var/authd/crypt.tcl
        log_type        = SYSLOG daemon debug
}

Don't forget to make an entry in /etc/services