dnsmasq: Make parameters optional in dhcpboot config

The --dhcp-boot option of dnsmasq does not require servername and serveraddress
arguments if the builtin tftp server is used.

Signed-off-by: Stefan Tomanek <stefan.tomanek+openwrt@wertarbyte.de>
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@44744 3c298f89-4303-0410-b956-a3cf2f4a3e73

diff --git a/package/network/services/dnsmasq/files/dnsmasq.init b/package/network/services/dnsmasq/files/dnsmasq.init
index 40ec584..fb118d5 100644 (file)
--- a/package/network/services/dnsmasq/files/dnsmasq.init
+++ b/package/network/services/dnsmasq/files/dnsmasq.init
@@ -364,12 +364,11 @@ dhcp_boot_add() {
        [ -n "$filename" ] || return 0
 
        config_get servername "$cfg" servername
-       [ -n "$servername" ] || return 0
-
        config_get serveraddress "$cfg" serveraddress
-       [ -n "$serveraddress" ] || return 0
 
-       xappend "--dhcp-boot=${networkid:+net:$networkid,}$filename,$servername,$serveraddress"
+       [ -n "$serveraddress" -a ! -n "$servername" ] && return 0
+
+       xappend "--dhcp-boot=${networkid:+net:$networkid,}${filename}${servername:+,$servername}${serveraddress:+,$serveraddress}"
 
        config_get_bool force "$cfg" force 0