Fix for --adapter-port (upstream PR not merged)

[mzpqnxow]

Hey there @p-l-

As usual, thanks for maintaining this fork, it's made my life so much easier

FYI, I just submitted robertdavidgraham#738 upstream

This adds the saving of --adapter-port value, which was simply missing from the masscan_echo function

With this you can properly resume a scan that uses --adapter-port/--source-port and you can also see more correct output when using --echo (since they share a function, just use a different FILE * (paused.conf vs stderr)

I tried not to bork any whitespace this time, but please let me know if you prefer any changes (or feel free to make said changes yourself)

Thanks!

[mzpqnxow]

Also- should I send the PR here? I don't know if you can merge the upstream PR or if it's easier to have the PR directly to the fork

I'll send here and you can close it if it's unnecessary

[mzpqnxow]

Created #10 if that's easier

[p-l-]

Thanks a lot! It's better for me if you create a PR here too, as you did.