Fix PREFIX calculation for attach_interface_to_ovs

[apex.git] / lib / common-functions.sh

diff --git a/lib/common-functions.sh b/lib/common-functions.sh
index 6941093..4dd8a13 100644 (file)
--- a/lib/common-functions.sh
+++ b/lib/common-functions.sh
@@ -72,7 +72,7 @@ function attach_interface_to_ovs {
 
   if [ -z "$if_mask" ]; then
     # we can look for PREFIX here, then convert it to NETMASK
-    if_prefix=$(sed -n 's/^PREFIX=\(.*\)$/\1/p' ${if_file})
+    if_prefix=$(sed -n 's/^PREFIX=[^0-9]*\([0-9][0-9]*\)[^0-9]*$/\1/p' ${if_file})
     if_mask=$(prefix2mask ${if_prefix})
   fi