int zmq::null_mechanism_t::process_handshake_command (msg_t *msg_)
{
if (ready_command_received || error_command_received) {
// Temporary support for security debugging
puts ("NULL I: client sent invalid NULL handshake (duplicate READY)");
errno = EPROTO;
return -1;
}
const unsigned char *cmd_data =
static_cast <unsigned char *> (msg_->data ());
const size_t data_size = msg_->size ();
int rc = 0;
if (data_size >= 6 && !memcmp (cmd_data, "\5READY", 6))
rc = process_ready_command (cmd_data, data_size);
else if (data_size >= 6 && !memcmp (cmd_data, "\5ERROR", 6))
rc = process_error_command (cmd_data, data_size);
else {
// Temporary support for security debugging
puts ("NULL I: client sent invalid NULL handshake (not READY)");
errno = EPROTO;
rc = -1;
}
if (rc == 0) {
int rc = msg_->close ();
errno_assert (rc == 0);
rc = msg_->init ();
errno_assert (rc == 0);
}
return rc;
}
int zmq::plain_mechanism_t::process_handshake_message (msg_t *msg_)
{
int rc = 0;
switch (state) {
case waiting_for_hello:
rc = process_hello_command (msg_);
if (rc == 0)
state = expecting_zap_reply? waiting_for_zap_reply: sending_welcome;
break;
case waiting_for_welcome:
rc = process_welcome_command (msg_);
if (rc == 0)
state = sending_initiate;
break;
case waiting_for_initiate:
rc = process_initiate_command (msg_);
if (rc == 0)
state = sending_ready;
break;
case waiting_for_ready:
rc = process_ready_command (msg_);
if (rc == 0)
state = ready;
break;
default:
errno = EPROTO;
rc = -1;
break;
}
if (rc == 0) {
rc = msg_->close ();
errno_assert (rc == 0);
rc = msg_->init ();
errno_assert (rc == 0);
}
return rc;
}
