#!/bin/bash
###############################################################################
#                                                                             #
# IPFire.org - A linux based firewall                                         #
# Copyright (C) 2012  IPFire Network Development Team                         #
#                                                                             #
# This program is free software: you can redistribute it and/or modify        #
# it under the terms of the GNU General Public License as published by        #
# the Free Software Foundation, either version 3 of the License, or           #
# (at your option) any later version.                                         #
#                                                                             #
# This program is distributed in the hope that it will be useful,             #
# but WITHOUT ANY WARRANTY; without even the implied warranty of              #
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the               #
# GNU General Public License for more details.                                #
#                                                                             #
# You should have received a copy of the GNU General Public License           #
# along with this program.  If not, see <http://www.gnu.org/licenses/>.       #
#                                                                             #
###############################################################################

config_header() {
	local what=${1}
	assert isset what

	# Print the header.
	echo "#"
	echo "# This is a ${what}."
	echo "# THIS FILE IS AUTOMATICALLY GENERATED AND"
	echo "# ANY CUSTOM CHANGES WILL BE OVERWRITTEN!"
	echo "#"
	echo "# $(date -u)"
	echo "#"
	echo
}

config_hostname() {
	local hostname=${1}

	if [ -n "${hostname}" ]; then
		echo "${hostname}" > ${CONFIG_HOSTNAME}
	else
		echo "$(<${CONFIG_HOSTNAME})"
	fi
}

config_domainname() {
	local hostname=$(config_hostname)

	# Strip off the hostname part and just return
	# the domain part.
	print "${hostname#*.}"
}

config_get_id_from_config() {
	# This function returns the id for a given config name
	# Example 'dhcp.0' => 0
	assert [ $# -eq 1 ]
	local config=${1}

	echo "${config##*.}"

}

config_get_hook_from_config() {
	# This function returns the hook for a given config name
	# Example 'dhcp.0' => dhcp
	assert [ $# -eq 1 ]
	local config=${1}

	echo "${config%%.*[[:digit:]]}"
}