Initial commit.
Fixed pcap output file writing.
Improved pcap file loading.
Computing IPv4 header checksum.
Renamed ip packet structures to ip4.
Added command line parser for filter options.
Filtering packets based on command line arguments.
Using command line options.
Removed test code.
Support for IP packets without Ethernet encapsulation.
Small changes to packet serialization.
Testing Ethernet and IP type fields before trying to interpret payload.
Adding to github.