tor/changes/bug7708

  o Major bugfixes:
    - When a TLS write is partially successful but incomplete, remember
      that the flushed part has been flushed, and notice that bytes were
      actually written. Reported and fixed pseudonymously. Fixes bug
      7708; bugfix on Tor 0.1.0.5-rc.
Fix serious breakage in connection_handle_write_impl When we first implemented TLS, we assumed in conneciton_handle_write that a TOR_TLS_WANT_WRITE from flush_buf_tls meant that nothing had been written. But when we moved our buffers to a ring buffer implementation back in 0.1.0.5-rc (!), we broke that invariant: it's possible that some bytes have been written but nothing. That's bad. It means that if we do a sequence of TLS writes that ends with a WANTWRITE, we don't notice that we flushed any bytes, and we don't (I think) decrement buckets. Fixes bug 7708; bugfix on 0.1.0.5-rc 2012-12-11 23:46:12 +01:00			`o Major bugfixes:`
			`- When a TLS write is partially successful but incomplete, remember`
			`that the flushed part has been flushed, and notice that bytes were`
			`actually written. Reported and fixed pseudonymously. Fixes bug`
			`7708; bugfix on Tor 0.1.0.5-rc.`