avoid ending up with an empty db.root

bind/bind.spec

@@ -37,7 +37,7 @@ Distribution: OpenPKG [BASE]
 Group:        DNS
 License:      ISC
 Version:      %{V_bind}
-Release:      20030819
+Release:      20030907
 
 #   package options
 %option       with_dlz_mysql      no

bind/db.root.sh

@@ -10,11 +10,15 @@ cat >$ROOTFILE <<EOT
 ;;
 
 EOT
-dig @A.ROOT-SERVERS.NET . NS |\
-awk '
-  /^[^;].*IN\tNS/ { printf("%-20s 99999999  IN  NS  %s\n", $1, $NF); }
-  /^[^;].*IN\tA/  { printf("%-20s 99999999  IN  A   %s\n", $1, $NF); }
+for i in A B C D E F G H I J K L M; do
+    dig @$i.ROOT-SERVERS.NET . NS >$ROOTFILE.raw && break
+done
+[ -f $ROOTFILE.raw ] || exit 1
+awk <$ROOTFILE.raw '
+  /IN NS/ { printf("%-20s 99999999  IN  NS  %s\n", $1, $NF); }
+  /IN A/  { printf("%-20s 99999999  IN  A   %s\n", $1, $NF); }
 ' |\
 sort >>$ROOTFILE
 echo "" >>$ROOTFILE
+rm $ROOTFILE.raw