adblock: update 1.4.7

Apply adblock update 1.4.5-1.4.7

Signed-off-by: Hannu Nyman <hannu.nyman@iki.fi>

Original commit messages:

adblock: update 1.4.5
* change the default hphosts list source to ad and tracking servers
only, the overall list includes to many false positives
* new optional config parm 'adb_hotplugif' to restrict hotplug support
to a certain wan interface or to disable it at all
* documentation update
* cosmetics

adblock: update 1.4.6
* added a 'window.close()' to adblock landing page to automatically
close any pop-ups that might get loaded with a blocked ad
* simplified dnsmasq check in ap mode

adblock: update 1.4.7
* add a query function to search the active blocklists for a specific
domain (/etc/init.d/adblock query <DOMAIN>)
* fix bug in ap mode/uhttpd port detection
* check general firewall and dnsmasq package dependencies and remove
redundant checks in ap mode

net/adblock/files/adblock.init

@@ -2,10 +2,11 @@
 #
 
 START=99
-EXTRA_COMMANDS="toggle stats cfgup"
+EXTRA_COMMANDS="toggle stats cfgup query"
 EXTRA_HELP="	toggle	Toggle adblock 'on' or 'off'
 	stats	Update adblock statistics
-	cfgup	Update adblock configuration file"
+	cfgup	Update adblock configuration file
+	query	<DOMAIN> Query active blocklists for specific domain"
 
 adb_debug=0
 adb_pid="${$}"
@@ -127,3 +128,15 @@ cfgup()
     fi
     return 0
 }
+
+query()
+{
+    if [ -z "${1}" ]
+    then
+        f_log "no domain query input, please submit a specific search domain"
+    else
+        f_log "results for search domain '${1}':"
+        grep "${1}" "/tmp/dnsmasq.d/adb_list"*
+    fi
+    return 0
+}