backup-script-wrapper: Use "mktemp" to generate temporary file

This is much saver and generates correctly restricted permissions.

diff --git a/bin/backup-script-wrapper b/bin/backup-script-wrapper
index d069670bde80aa0dc253a37d8bc0b42618bcbdcd..282a9c9b16ad43b8f95eedb0b652eeb7e42fd536 100755 (executable)
--- a/bin/backup-script-wrapper
+++ b/bin/backup-script-wrapper
@@ -1,7 +1,7 @@
 #!/bin/sh
 #
 # backup-script system for cloning systems using rsync
-# Copyright (c)2008-2013 Alexander Barton, alex@barton.de
+# Copyright (c)2008-2014 Alexander Barton, alex@barton.de
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -14,7 +14,7 @@
 
 NAME="backup-script"
 HOST=`hostname`
-TMP="/tmp/$NAME.$$"
+TMP=`mktemp /tmp/$NAME.XXXXXXXX` || exit 11
 
 PATH="$PATH:/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin"
 export PATH