# DNS
#
# Douglas Thrift
#
# $Id$

SHELL := $(shell which bash)
update := $(shell hostname -s)

ifeq ($(shell [[ -r $(update) ]]; echo $$?),0)
dhclient_exit_hooks := dhclient-exit-hooks
endif

.PHONY: all install clean

all: $(dhclient_exit_hooks)

dhclient-exit-hooks: dhclient-exit-hooks.in $(update)
	sed -e "s/^%%hostname%%$$/hostname='$(shell cat $(word 2, $+))'/;s/^%%\([a-z]*\)%%$$/read -p '\1: ' -er \1/" $< > $@

install: all
ifndef dhclient_exit_hooks
	install -pv -g wheel -o root reverse.pl ~root/bin/reverse.pl
else
	install -pv -g wheel -m 0600 -o root /dev/null /etc/dhclient-exit-hooks
	sed -e "s/^read -p '\(key\): ' -er \1$$/\1='$(shell read -p 'key: ' -er; echo $$REPLY)'/;s/^read -p '\(secret\): ' -er \1$$/\1='$(shell read -p 'secret: ' -er; echo $$REPLY)'/" dhclient-exit-hooks > /etc/dhclient-exit-hooks
endif

clean:
	rm -f dhclient-exit-hooks