Ah... I've worked a lot w/ libcurl, and a bit w/ c-ares, but don't fully know how c-ares works w/i curl. Thanks for the rundown.

Re: "limit calls to curl init" -- do you mean curl_easy_init() ? In that case, reusing handles (eg:

  CURL  *handle

) would mitigate that, no?

Edit: This doesn't make sense. c-ares relationship must be in curl_easy_perform(). Now I'm curious:

  1) Am I correct re: c-ares / curl_easy_perform()
  2) Can one reuse CURL *handle and not invoke c-ares and /dev/urandom if one reuses the same domain name (but not necessarily the same URL) within a handle.