client: only send one SPICE_MSGC_MAIN_ATTACH_CHANNELS messages

492f7a9b fixed unwanted timeouts during initial client startup,
but it also caused a bad regression when connecting to
RHEL6+agent guests: the SPICE_MSGS_MAIN_ATTACH_CHANNELS message
was sent multiple times, once in RedClient::handle_init, then
once again in RedClient::on_agent_announce_capabilities (which
can even be triggered multiple times). Sending this message multiple
times is a big NO and causes the server to close the client connection,
and the client to die. Add a _msg_attach_message_sent boolean to
make sure we only send this message once.

rhbz #712938

0 files changed, 0 insertions, 0 deletions