session: hack that needs more work
    one can execute commands in irssi
    i told selinux that irssi should execute shells in the calling
    user domain, and this means that irssi will run a lot of apps
    with a domain transition via the shell
    these apps need to be able to send child term signal to irssi,
    use irssis' fd and rw fifo inherited from irssi
    the way i implemented it is not proper but it works

    example /exec netstat -antlpZ