Call flush while any data is buffered.
Call flush while any data is buffered.

This is so that an open socket can be closed after sending all its data,
after its partner has closed.

glamrock/flashproxy,glamrock/flashproxy,infinity0/flashproxy,glamrock/flashproxy,arlolra/flashproxy,arlolra/flashproxy,glamrock/flashproxy,glamrock/flashproxy,infinity0/flashproxy,arlolra/flashproxy,glamrock/flashproxy,infinity0/flashproxy,infinity0/flashproxy,arlolra/flashproxy,arlolra/flashproxy,arlolra/flashproxy,arlolra/flashproxy,infinity0/flashproxy,infinity0/flashproxy