From: wangxiao <wangxiao65@huawei.com>
Subject: [PATCH] initscripts: maintain permissions set umask in case resolvconf doesn't exist
reason: maintain permissions set umask in case resolvconf doesn't exist
diff --git a/network-scripts/network-functions b/network-scripts/network-functions
index 7f5dfb0..8deda57 100644
--- a/network-scripts/network-functions
+++ b/network-scripts/network-functions
@@ -619,6 +619,11 @@
 # Invoke this when /etc/resolv.conf has changed:
 change_resolv_conf ()
 {
+    # maintain permissions
+    # but set umask in case it doesn't exist!
+    oldumask=$(umask)
+    umask 022
+
     s=$(/bin/grep '^[\ \       ]*option' /etc/resolv.conf 2>/dev/null)
     if [ $# -gt 1 ]; then
         if [ "x$s" != "x" ]; then
@@ -654,6 +659,8 @@
         /usr/bin/logger -p local7.notice -t "NET" -i "$0 : updated /etc/resolv.conf"
         [ -e /run/nscd/socket ] && /usr/sbin/nscd -i hosts # invalidate cache
     fi
+
+    umask $oldumask
     return $r
 }