a c++ url accessed log

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C++

Windows

im now currently developing a standalone c++ program that would list all the access URL in a browser and its corresponding response time....
at this point of time, i can already sniff all out and in going packets. i am using winpcap for this...
retrieved packets were filtered to by only those 'tcp port 80(http) or 443(https)'...
and know i want to read some http headers. the problem i have is that usually ip are fragmented.
I want to know how to reassemble this and how to have some details about the http..
Note: i want to implement that of WIRESHARK.. in every packet/frame, it has a 'REASSEMBLED TCP SEGMENT'
any idea or tutorials how i can easily attain this?!..
thanks alot!