This took several hours of web searching and trying to make sense of the asio documentation, but... <snip> boost::asio::ip::tcp::endpoint ep(boost::asio::ip::address_v4(0xD155AB64), 80); // 209.85.171.100:80 boost::asio::ip::tcp::resolver resolver(ios); boost::asio::ip::tcp::resolver::iterator iter = resolver.resolve(ep); boost::asio::ip::tcp::resolver::iterator end; while (iter != end) { std::cerr << (*iter).host_name() << std::endl; // cg-in-f100.google.com ++iter; } <snip> ...produces the desired results. I'm posting this because I found other posts like mine that had not been responded to. -Brian Brian and Victoria wrote:
I'm having trouble parsing the documentation, and am trying to determine if asio supports gethostbyaddr() functionality.
The resolver appears to support hostname to addr queries, but I'm looking for addr to hostname (e.g., 127.0.0.1 maps to localhost).
If so, a pointer to an example would be greatly appreciated.
Thanks, Brian