From 41ed6f55fbfbdaf662976d5c6a9ce7aec4c101d1 Mon Sep 17 00:00:00 2001 From: blogic Date: Mon, 1 Sep 2014 13:22:06 +0000 Subject: [PATCH] dnsmasq: Fix hosts file format when MAC address is not specified An entry like this in /etc/config/dhcp: config 'host' option 'name' 'pc2' option 'ip' '192.168.100.56' option 'dns' '1' results in a /tmp/hosts/dhcp entry that looks like this: 192.168.100.56 .lan Obviously it should say "pc2.lan". This happens because $name is set to "" in order to support the MAC-less syntax: "--dhcp-host=lap,192.168.0.199". Fix this by reordering the operations. Also, refuse to add a DNS entry if the hostname or IP is missing. Fixes #17683 Reported-by: Kostas Papadopoulos Signed-off-by: Kevin Cernekee Backport of r42319 git-svn-id: svn://svn.openwrt.org/openwrt/branches/barrier_breaker@42389 3c298f89-4303-0410-b956-a3cf2f4a3e73 --- package/network/services/dnsmasq/files/dnsmasq.init | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/package/network/services/dnsmasq/files/dnsmasq.init b/package/network/services/dnsmasq/files/dnsmasq.init index c2704e4..06d8c84 100644 --- a/package/network/services/dnsmasq/files/dnsmasq.init +++ b/package/network/services/dnsmasq/files/dnsmasq.init @@ -293,6 +293,11 @@ dhcp_host_add() { config_get ip "$cfg" ip [ -n "$ip" -o -n "$name" ] || return 0 + config_get_bool dns "$cfg" dns 0 + [ "$dns" = "1" -a -n "$ip" -a -n "$name" ] && { + echo "$ip $name${DOMAIN:+.$DOMAIN}" >> $HOSTFILE + } + config_get mac "$cfg" mac [ -z "$mac" ] && { [ -n "$name" ] || return 0 @@ -309,11 +314,6 @@ dhcp_host_add() { [ "$broadcast" = "0" ] && broadcast= xappend "--dhcp-host=$macs${networkid:+,net:$networkid}${broadcast:+,set:needs-broadcast}${tag:+,set:$tag}${ip:+,$ip}${name:+,$name}" - - config_get_bool dns "$cfg" dns 0 - [ "$dns" = "1" ] && { - echo "$ip $name${DOMAIN:+.$DOMAIN}" >> $HOSTFILE - } } dhcp_tag_add() {