clean up ntpclient uci

- add global section for default values
- find working server from servers named in config
- patches bin to support daemon



git-svn-id: svn://svn.openwrt.org/openwrt/packages@12305 3c298f89-4303-0410-b956-a3cf2f4a3e73

net/ntpclient/Makefile

@@ -41,8 +41,6 @@ define Package/ntpclient/install
 	$(INSTALL_DIR) $(1)/etc/config
 	$(INSTALL_CONF) ./files/ntpclient.config $(1)/etc/config/ntpclient
 	$(INSTALL_DIR) $(1)/usr/sbin
-	$(INSTALL_DIR) $(1)/etc/init.d
-	$(INSTALL_BIN) ./files/ntpclient.init $(1)/etc/init.d/ntpclient
 	$(INSTALL_BIN) $(PKG_BUILD_DIR)/ntpclient $(1)/usr/sbin/
 	$(INSTALL_BIN) $(PKG_BUILD_DIR)/adjtimex $(1)/usr/sbin/
 	$(INSTALL_BIN) $(PKG_BUILD_DIR)/rate.awk $(1)/usr/sbin/

net/ntpclient/files/ntpclient.config

@@ -1,22 +1,23 @@
-config ntpclient
+config ntpserver
 	option hostname '0.openwrt.pool.ntp.org'
 	option port     '123'
-	option count    '0'
 
-config ntpclient
+config ntpserver
 	option hostname '1.openwrt.pool.ntp.org'
 	option port     '123'
-	option count    '0'
 
-config ntpclient
+config ntpserver
 	option hostname '2.openwrt.pool.ntp.org'
 	option port     '123'
-	option count    '0'
 
-config ntpclient
+config ntpserver
 	option hostname '3.openwrt.pool.ntp.org'
 	option port     '123'
-	option count    '0'
 
 config ntpdrift
 	option freq     '0'
+
+config ntpclient
+	option interval	60
+	option iface	wan
+	#option count	10

net/ntpclient/files/ntpclient.hotplug

@@ -3,43 +3,69 @@
 
 . /etc/functions.sh
 
-DONE=0
+unset IFACE
-config_cb() {
+unset SERVER
-	local cfg="$CONFIG_SECTION"
+unset PORT
-	local cfgtype
+unset INTERVAL
-	config_get cfgtype "$cfg" TYPE
+unset COUNT
+NTPC=`which ntpclient`
 
-	# initial frequency offset, if configured
+check_server() {
-	case "$cfgtype" in
+	local hostname
-		ntpdrift)
+	local port
-			config_get freq		$cfg freq
+	[ -n "$SERVER" ] && return
-
+	config_get hostname $1 hostname
-			if [ ! "$freq" = "" ]; then
+	config_get port $1 port
-				adjtimex -f $freq >/dev/null
+	[ -z "$hostname" ] && return
-			fi
+	$NTPC -c 1 -p ${port:-123} -h $hostname > /dev/null && { SERVER=$hostname; PORT=${port:-123}; }
-		;;
-	esac
-
-	case "$cfgtype" in
-		ntpclient)
-			config_get hostname	$cfg hostname
-			config_get port		$cfg port
-			config_get count	$cfg count
-
-			[ "$DONE" = "1" ] && exit 0
-			ps | grep 'bin/[n]tpclient' >&- || {
-				route -n 2>&- | grep '^0.0.0.0' >&- && {
-					/usr/sbin/ntpclient -c ${count:-1} -s -h $hostname -p ${port:-123} 2>&- >&- && DONE=1
-				}
-			}
-		;;
-	esac
 }
+
+set_drift() {
+	config_get freq $1 freq
+	[ -n "$freq" ] && adjtimex -f $freq >/dev/null
+}
+
+start_ntpclient() {
+	config_foreach set_drift ntpdrift
+	config_foreach check_server ntpserver
+	[ -z "$SERVER" ] && exit 0
+	logger starting ntpclient
+	$NTPC ${COUNT:+-c $COUNT} ${INTERVAL:+-i $INTERVAL} -D -p $PORT -h $SERVER 2> /dev/null
+}
+
+stop_ntpclient() {
+	logger stopping ntpclient
+	killall ntpclient
+}
+
+load_settings() {
+	local interval
+	local count
+	local iface
+	
+	config_get interval $1 interval
+	config_get count $1 count
+	config_get iface $1 iface
+	
+	[ -n "$iface" ] && IFACE=$iface
+	[ -n "$count" ] && COUNT=$count
+	[ -n "$interval" ] && INTERVAL=$interval
+}
+
+config_load ntpclient
+config_foreach load_settings ntpclient
+
+# check if we only listen to a single iface
+[ -n "$IFACE" -a "$IFACE" != "$INTERFACE" ] && exit 0 
+
+DEF_ROUTE=`route -n | grep '^0.0.0.0'`                                     
+NTP_RUNNING=`ps  | grep $NTPC | grep -v grep`
+
 case "${ACTION:-ifup}" in
 	ifup)
-		config_load ntpclient&
+		[ -n "$DEF_ROUTE" -a -z "$NTP_RUNNING" ] && start_ntpclient 
 	;;
 	ifdown)
-		route -n 2>&- | grep '^0.0.0.0' >&- || killall ntpclient 2>&- >&-
+		[ -n "$NTP_RUNNING" ] && stop_ntpclient 
 	;;
 esac

net/ntpclient/files/ntpclient.init

@@ -1,28 +0,0 @@
-#!/bin/sh /etc/rc.common
-# Copyright (C) 2008 OpenWrt.org
-
-START=80 
-
-config_cb() {
-	local cfg="$CONFIG_SECTION"
-	local cfgtype
-	config_get cfgtype "$cfg" TYPE
-
-	if [ "$cfgtype" = ntpclient ]
-	then
-		config_get hostname	$cfg hostname
-		config_get port		$cfg port
-		config_get count	$cfg count
-
-		ps | grep -q 'bin/[n]tpclient' || \
-			/usr/sbin/ntpclient -s -c ${count:-1} -l -h $hostname -p ${port:-123} 2>&- >&- &
-	fi
-}
-
-start() {
-	config_load ntpclient&
-}
-
-stop() {
-	killall ntpclient 2>&- >&-
-}

net/ntpclient/patches/100-daemon.patch

@@ -0,0 +1,24 @@
+Index: ntpclient-2007/ntpclient.c
+===================================================================
+--- ntpclient-2007.orig/ntpclient.c	2008-08-12 03:11:34.000000000 +0200
++++ ntpclient-2007/ntpclient.c	2008-08-12 03:11:36.000000000 +0200
+@@ -614,7 +614,7 @@
+ 	ntpc.cross_check=1;
+ 
+ 	for (;;) {
+-		c = getopt( argc, argv, "c:" DEBUG_OPTION "f:g:h:i:lp:q:" REPLAY_OPTION "st");
++		c = getopt( argc, argv, "c:" DEBUG_OPTION "f:g:h:i:lp:q:" REPLAY_OPTION "stD");
+ 		if (c == EOF) break;
+ 		switch (c) {
+ 			case 'c':
+@@ -663,6 +663,10 @@
+ 				(ntpc.cross_check)=0;
+ 				break;
+ 
++			case 'D':
++				daemon();
++				break;
++
+ 			default:
+ 				usage(argv[0]);
+ 				exit(1);