Steven, Nico:

Problem:
   How to execute a function instead of binary

Solutions:

   1)
      (
         cat $lib/*
         cat bin/cdist-config
         echo $function $args
      ) | ssh foo

   2)
      scp $dir/lib.sh root@foo:/tmp/lib.sh
      cat << DONE | ssh root@foo sh
      source /tmp/lib.sh
      DONE

   3) follow up to 1)
      __run_remote()
      {
         cat << eof | ssh foo

         . /cdist-config
         "$@" # NOT USABLE, no export = export = lines possible!

         eof


Problems found and solved:

   - remote shell cannot work due to multi line variable export
   - caching library directory with scp
   - create function for every remote action
      -> prepares environment