The call of gnutls_set_default_priority_append() expects a normal priority
string, which means it must not start with ':'.

Our current architecture doesn't support waiting for a response here, so
don't even try or we'll just get an error.

The session might have died, or failed to initialise properly, so be
prepared for gnutls_bye() to be unable to do its job.

Makes it easier to debug TLS issues, and to see the effect of
altering the priority string.

In theory we could return to communicate without TLS after a
shutdown. It also makes sure the connection object isn't left
completely without streams.

The streams depend on the session and can crash the program if they
are removed in the wrong order. Do a general cleanup of the life time
management of the streams.

There is already an implicit connection between them, so let's make
it explicit. This allows easy lookup outside of the processMsg() function.

These are reference counted so it is important to retain symmetry
between the calls. Failure to do so will result in bad memory access
and crashes.

This allows us to simplify things by getting rid of some old
compatibility code. People should really be using current versions
of GnuTLS anyway to stay secure.

We don't even log this much for RFB protocol stuff, and it makes
it very annoying to run with full debugging on.

containing stream object. This is in preparation for supporting GnuTLS 3.x.


git-svn-id: svn://svn.code.sf.net/p/tigervnc/code/trunk@4921 3789f03b-4d11-0410-bbf8-ca57d06f2519

git-svn-id: svn://svn.code.sf.net/p/tigervnc/code/trunk@4905 3789f03b-4d11-0410-bbf8-ca57d06f2519

git-svn-id: svn://svn.code.sf.net/p/tigervnc/code/trunk@4295 3789f03b-4d11-0410-bbf8-ca57d06f2519

git-svn-id: svn://svn.code.sf.net/p/tigervnc/code/trunk@4120 3789f03b-4d11-0410-bbf8-ca57d06f2519

git-svn-id: svn://svn.code.sf.net/p/tigervnc/code/trunk@4108 3789f03b-4d11-0410-bbf8-ca57d06f2519

git-svn-id: svn://svn.code.sf.net/p/tigervnc/code/trunk@4107 3789f03b-4d11-0410-bbf8-ca57d06f2519

git-svn-id: svn://svn.code.sf.net/p/tigervnc/code/trunk@4049 3789f03b-4d11-0410-bbf8-ca57d06f2519

TLSNone and TLSVnc VeNCrypt subtypes are implemented.


git-svn-id: svn://svn.code.sf.net/p/tigervnc/code/trunk@4045 3789f03b-4d11-0410-bbf8-ca57d06f2519