Is DNS Query equal to HTTP Host?

Hi can anyone help me figure out if the dns query is the same as the http host?

I’ve tried doing the following but did not get any output.

if(c$dns$query == c$http$host)

#send notice to notice.log

A connection object is created for a DNS query and a DNS response. Subsequent connections made utilizing the results of that DNS query have their own connection objects. You’ll have to keep a DNS cache in userland and watch for connections to the resolved IP address with HTTP host fields differing from the domain that was resolved in the cache.