Compat16

[mindsur]

We are still heavily using nfdump files with older format.
So I have attempted to implement parsing of DataBlock type 2 and CommonRecord types based on the original C code.
I am quite new to GO and complete newbie in C so this might not be most accurate implementation.

Next, I still want to be able to process multiple files like it's done in original C code with "-M" and some way to aggregate flows with "-a".
Also, planning to do some optimizations with printing. Current Sprintf sample is quite slow converting between data types.

[mindsur]

I've also implemented only small subset of extensions, primarily the ones that we use

[phaag]

HI,
Many thanks for your code and your contribution. Anything which improves code and functionality is welcome. However, in the end the code must fit into the idea of the project.
I am a bit reluctant to introduce old compatibility in new projects. To convert old 1.6.x files into 1.7.x files is implemented in nfdump by simply read/write those files. Therefore I would be interested, if this would be an option for you, to convert those files into the newer format with nfdump and then read and process them with go-nfdump. It has the advantage that they are fully converted, not just those fields, you need.