get none results
i have run this command to test it:
br < Makefile
and get nothing...

i think that, if you can add some log for this framework.... so we can debug it...
did you find where the problem was ? I got the same issue ...
Empty result with ubuntu 14.04 too.
I believe it's a netcat issue, which exit too soon on network input EOF Related bug: https://bugs.launchpad.net/ubuntu/+source/netcat-openbsd/+bug/544935
A dirty workaround:
Add -q -1 for 1st and 3rd nc command
So it will keep forwarding data until pipe on the other end was broken
1st: the one listening on remote node:8193 to receive work data;
2nd: listening on remote node:8192 to send back processed data
3rd: retrieving processed data from remote node:8192
4th: sending work data to remote node:8193
I have hit the same issue and fixed it by doing
sudo apt-get remove netcat-openbsd
and then
sudo apt-get install netcat-traditional
None of the proposed suggestions worked for me (CentOS). However, I found that nc6 works like a charm. After downloading and installing, you should change the br script to use nc6 instead of nc.
Link to nc6 source: https://web.archive.org/web/20070813000522/http://ftp.deepspace6.net/pub/ds6/sources/nc6/nc6-1.0.tar.gz