From 9b62bcb75dd3af78b8f680f8decd5beefddb46d2 Mon Sep 17 00:00:00 2001
From: David Wragg <david@wragg.org>
Date: Fri, 13 Mar 2015 18:17:26 +0000
Subject: [PATCH] Don't need to use sed to get the IP address part of a CIDR

---
 weave | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/weave b/weave
index 8282f3e6..7613b3c7 100755
--- a/weave
+++ b/weave
@@ -353,9 +353,8 @@ tell_dns() {
     # get the long form of the container ID
     CONTAINER=$(docker inspect --format='{{.Id}}' $2 2>/dev/null)
     # extract IP address and routing prefix from CIDR
-    WEAVE_ADDR_IP=$(echo $3 | sed -e 's/\([^/]*\)\/\(.*\)/\1/')
     MORE_ARGS=$(docker inspect --format='--data-urlencode fqdn={{.Config.Hostname}}.{{.Config.Domainname}}.' $CONTAINER 2>/dev/null) && true
-    http_call $DNS_CONTAINER_NAME $DNS_HTTP_PORT $1 /name/$CONTAINER/$WEAVE_ADDR_IP $MORE_ARGS || true
+    http_call $DNS_CONTAINER_NAME $DNS_HTTP_PORT $1 /name/$CONTAINER/${3%/*} $MORE_ARGS || true
 }
 
 # Tell the newly-started weaveDNS about existing weave IPs