GNUNET_assert_at (str != NULL, filename, linenumber);
len = strnlen (str, len);
res = GNUNET_xmalloc_ (len + 1, filename, linenumber);
GNUNET_assert_at (str != NULL, filename, linenumber);
len = strnlen (str, len);
res = GNUNET_xmalloc_ (len + 1, filename, linenumber);