* luci/contrib/addons: add luci_hosts infrastructure

contrib/package/luci-addons/Makefile

@@ -1,7 +1,7 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=luci-addons
-PKG_VERSION:=0.2
+PKG_VERSION:=0.3
 PKG_RELEASE:=1
 
 PKG_BUILD_DIR:=$(BUILD_DIR)/$(PKG_NAME)-$(PKG_VERSION)
@@ -32,8 +32,10 @@ define Package/luci-addons/install
 	$(INSTALL_BIN) ./dist/sbin/luci-flash $(1)/sbin
 	$(INSTALL_BIN) ./dist/etc/init.d/luci_fixtime $(1)/etc/init.d
 	$(INSTALL_BIN) ./dist/etc/init.d/luci_ethers $(1)/etc/init.d
+	$(INSTALL_BIN) ./dist/etc/init.d/luci_hosts $(1)/etc/init.d
 
 	$(INSTALL_CONF) ./dist/etc/config/luci_ethers $(1)/etc/config
+	$(INSTALL_CONF) ./dist/etc/config/luci_hosts $(1)/etc/config
 
 	$(CP) ./dist/etc/crontabs/root $(1)/etc/crontabs/root
 endef

contrib/package/luci-addons/dist/etc/config/luci_hosts

@@ -0,0 +1,3 @@
+config 'host'
+	option 'ipaddr' '10.11.12.13'
+	option 'hostname' 'sample-host'

contrib/package/luci-addons/dist/etc/init.d/luci_hosts

@@ -0,0 +1,30 @@
+#!/bin/sh /etc/rc.common
+START=60
+
+apply_host() {
+	local cfg="$1"
+
+	config_get hostname "$cfg" hostname
+	config_get ipaddr   "$cfg" ipaddr
+
+	[ -n "$hostname" -a -n "$ipaddr" ] || return 0
+	
+	echo "$ipaddr $hostname" >> /var/etc/hosts
+}
+
+start() {
+	if [ ! -L /etc/hosts ]; then
+		test -f /etc/hosts && mv /etc/hosts /etc/hosts.local
+		ln -s /var/etc/hosts /etc/hosts
+	fi
+
+	test -d /var/etc || mkdir -p /var/etc
+	test -f /etc/hosts.local && cat /etc/hosts.local >> /var/etc/hosts
+	
+	config_load luci_hosts
+	config_foreach apply_host host
+}
+
+stop() {
+	test -f /var/etc/hosts && rm -f /var/etc/hosts
+}