# arg 1:  the new package version
post_install() {
    grep -q 'sshd: ALL' /etc/hosts.allow
    [ $? != 0 ] && echo 'sshd: ALL' >> /etc/hosts.allow
    sed -i '/^DAEMONS=/s/!sshd/sshd/' /etc/rc.conf 2>/dev/null
    /bin/true
}

# arg 1:  the new package version
# arg 2:  the old package version
post_upgrade() {
    /bin/true
}

# arg 1:  the old package version
pre_remove() {
    /etc/rc.d/sshd stop 2> /dev/null
    /bin/true
}

# arg 1:  the old package version
post_remove() {
    sed -i '/^sshd: /d' /etc/hosts.allow 2>/dev/null
    sed -i '/^DAEMONS=/s/sshd/!sshd/' /etc/rc.conf 2>/dev/null
    /bin/true
}

op=$1
shift
$op $*