scripts

commit 68fc344f434b0e1cb7a595808669e08b58601242
parent 8433905a5181862c1762ba5aec431400d2371b3b
Author: dsp <dsp@2f30.org>
Date:   Sat, 19 Oct 2013 12:22:05 +0100

initial import of blackhole dns script for 2f30s unbound

Diffstat:
A
blackholedns
 | 
44
++++++++++++++++++++++++++++++++++++++++++++

1 file changed, 44 insertions(+), 0 deletions(-)
diff --git a/blackholedns b/blackholedns
@@ -0,0 +1,44 @@
+#!/bin/sh
+#gets list to blackhole from http://someonewhocares.org/hosts/hosts
+
+#number of lines to ignore from the start of the file (has some lines for localhost that aren't needed)
+NUMIGNORE=7
+OUTFILENAME=dhosts
+TMP=$OUTFILENAME".tmp"
+URL=http://someonewhocares.org/hosts/hosts
+
+trap '_clean' 2
+
+_fetchhosts() {
+                if curl -s -o /dev/null -f $URL; then
+                        curl -s $URL | grep -e "^127" | awk '{print $2}'| tail -n+$NUMIGNORE > $TMP
+                        return 1
+                else
+                        echo "could not connect to url"
+                        return 0
+                fi
+}
+
+_unboundize() {
+        while read line
+        do
+                case line in  
+                        +([a-z]|[A-Z]|['.']))  echo $line | sed 's/.*/local-zone: "&" redirect,local-data: "& A 127.0.0.1"/' | tr ',' '\n'
+                                ;;  
+                        *) return 0
+                                ;;  
+                esac
+        done<$TMP>>$OUTFILENAME
+        return 1
+}
+
+_clean() {
+        if [[ -e $TMP ]]
+                rm $TMP
+        exit 0
+}
+
+_fetchhosts; [[ $? == 0 ]] && exit 0
+_unboundize; [[ $? == 0 ]] && _clean
+rm $TMP
+exit 1