ptree_get_next_prop
err = ptree_get_next_prop(ptreeh, &ret.nextattr);
err = ptree_get_next_prop(dst_prophdl, &dst_prophdl);
retval = ptree_get_next_prop(proph,
err = ptree_get_next_prop(dst_prophdl, &dst_prophdl);
extern int ptree_get_next_prop(picl_prophdl_t thish,