Support binary transfers

[dcposch]

This module is sweet! I cant believe it does all of that in so few lines of code

@feross and I just tried streaming a one-hour-long mp3 using webcat.

The first issue we ran into is that webcat doesn't support binary data. Maybe it's interpreting the input as ascii or UTF8? Either way, I had to pipe thru base64 before sending it thru webcat.

With that workaround, it works for a few minutes before it dies. I think what's going on is that there isn't any backpressure, so the receiving webcat process buffers a lot of data. Once the whole (~150MB) file is sent, the sending webcat process closes the connection & exits. The receiving process sees the connection died and exits as well, even though it still has lots of data that needs to be flushed to stdout.

With the following fixes, I think it would work

• Flush stdout before exiting (most important)
• Handle binary input
• Implement back pressure

[feross]

What @dcposch said 👍