[SR-Users] Functions for DNS

I'm looking to build a set of contacts with q values based on SRV records for serial/parallel forking. I want "enum_query" (loading the contact set with a q value based on the order,preference of the NAPTR record) but the ruri is not an e.164 number, and SRV records are used instead. Think in terms of "find all peer proxies based on SRV lookup, and sort them for use with t_load_contacts()/t_next_contacts()." So far I haven't found any api that exposes the DNS lookups in sip-router. Before rolling something custom with Lua, am I missing something that's already documented? Or are there plans to make such a module? Sure don't want to re-invent the wheel. tia