#!/bin/bash

# configures network on host system according to installer settings
# if some variables are not set, we handle that transparantly
# however, at least $DHCP must be set, so we know what do to
# we assume that you checked whether networking has been setup before calling us
target_configure_network()
{
	# networking setup could have happened in a separate process (eg partial-configure-network),
	# so check if the settings file was created to be sure
	if [ -f $RUNTIME_DIR/aif-network-settings ]; then

		debug NETWORK "Configuring network settings on target system according to installer settings"

		source $RUNTIME_DIR/aif-network-settings 2>/dev/null || return 1

		IFO=${INTERFACE_PREV:-eth0} # old iface: a previously entered one, or the arch default
		IFN=${INTERFACE:-eth0} # new iface: a specified one, or the arch default

		# comment out any existing uncommented entries, whether specified by us, or arch defaults.
		for var in eth0 $IFO INTERFACES gateway ROUTES
		do
			sed -i "s/^$var=/#$var=/" ${var_TARGET_DIR}/etc/rc.conf || return 1
		done
		sed -i "s/^nameserver/#nameserver/" ${var_TARGET_DIR}/etc/resolv.conf || return 1
		if [ -f ${var_TARGET_DIR}/etc/profile.d/proxy.sh ]
		then
			sed -i "s/^export/#export/" ${var_TARGET_DIR}/etc/profile.d/proxy.sh || return 1
		fi

		if [ "$DHCP" = 0 ] ; then
			local line="$IFN=\"$IFN ${IPADDR:-192.168.0.2} netmask ${SUBNET:-255.255.255.0} broadcast ${BROADCAST:-192.168.0.255}\""
			append_after_last "/$IFO\|eth0/" "$line" ${var_TARGET_DIR}/etc/rc.conf || return 1

			if [ -n "$GW" ]; then
				append_after_last "/gateway/" "gateway=\"default gw $GW\"" ${var_TARGET_DIR}/etc/rc.conf || return 1
				append_after_last "/ROUTES/" "ROUTES=(gateway)" ${var_TARGET_DIR}/etc/rc.conf || return 1
			fi
			if [ -n "$DNS" ]
			then
				echo "nameserver $DNS" >> ${var_TARGET_DIR}/etc/resolv.conf || return 1
			fi
		else
			append_after_last "/$IFO\|eth0/" "$IFN=\"dhcp\"" ${var_TARGET_DIR}/etc/rc.conf || return 1
		fi

		append_after_last "/$IFO\|eth0/" "INTERFACES=($IFN)" ${var_TARGET_DIR}/etc/rc.conf || return 1

		if [ -n "$PROXY_HTTP" ]; then
			echo "export http_proxy=$PROXY_HTTP" >> ${var_TARGET_DIR}/etc/profile.d/proxy.sh || return 1
			chmod a+x ${var_TARGET_DIR}/etc/profile.d/proxy.sh || return 1
		fi

		if [ -n "$PROXY_FTP" ]; then
			echo "export ftp_proxy=$PROXY_FTP" >> ${var_TARGET_DIR}/etc/profile.d/proxy.sh || return 1
			chmod a+x ${var_TARGET_DIR}/etc/profile.d/proxy.sh || return 1
		fi
	else
		debug NETWORK "Skipping Host Network Configuration - aif-network-settings not found"
	fi
	return 0
}