+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+
+
+
+x="$(readlink -f "$BASH_SOURCE")"; source "${x%/*}/bash-trace"
+
+
+usage() {
+ cat <<EOF
+Usage: ${0##*/} [OPTIONS] [HOST TYPE]
+Configure dnsmasq boot options and fai-chboot if appropriate.
+
+Without HOST TYPE, disable server and fai server.
+
+HOST A hostname known to the dhcp server, or default for all.
+TYPE One of arch, plain, fai.
+
+-d Don't alter dhcp config. Only make sense for fai type, and on network
+ other than home network.
+-r Don't redeploy fai config. For example, if there is a different host
+ that is mid-install.
+
+-a Don't setup pxe, just Wait for 2 dhcp acks, then disable the pxe
+ server after a delay. First ack is for pxe boot, 2nd ack is
+ for os boot. Sometimes on debian, there is a 3rd one shortly
+ after the 2nd. I can't remember exactly why this caused a
+ problem, but I'm hoping the sleep will take care of it.
+-S sets FAI_ACTION=sysinfo, see myfai-chboot for more info.
+-k Pass -k to myfai-chboot.
+-w Setup pxe, then wait like -a.
+-h|--help Print help and exit
+
+
+Note, when switching between plain and arch, you will need to
+do something like:
+ssh wrt
+cd /mnt/usb
+rm tftpboot
+ln -s <arch/debian iso dir> tftpboot
+
+
+Note: Uses GNU getopt options parsing style
+EOF
+ exit $1
+}
+
+##### begin command line parsing ########
+
+dhcp=true
+redep=true
+acks=2
+wait=false
+chboot_args=()
+temp=$(getopt -l help adrSkwh "$@") || usage 1
+eval set -- "$temp"
+while true; do
+ case $1 in
+ -a) wait=true; set=false; shift ;;
+ -d) dhcp=false; shift ;;
+ -r) redep=false; shift ;;
+ -S) chboot_args+=(-S); shift ;;
+ -k) chboot_args+=(-k); shift ;;
+ -w) wait=true; set=true; shift ;;
+ -h|--help) usage ;;
+ --) shift; break ;;
+ *) echo "$0: Internal error!" ; exit 1 ;;
+ esac
+done
+
+read -r host type <<<"$@"
+
+case $# in
+ 0|2);;
+ *)
+ echo "$0: error: expected 0 or 2 arguments"
+ echo
+ usage 1
+ ;;
+esac
+
+if $wait && ! $dhcp; then
+ echo "$0: error -w conflicts with -d, choose one or other"
+ exit 1
+fi
+
+
+if [[ $host && $host != default ]]; then
+ host_tag="tag:$host,"
+fi
+
+##### end command line parsing ########
+
+e() {
+ echo "$@"
+ "$@"
+}