Revert "Backport telnetlib3 changes"

gns3server/compute/base_node.py

@@ -397,7 +397,11 @@ class BaseNode:
             echo=True
         )
         # warning: this will raise OSError exception if there is a problem...
-        self._wrapper_telnet_server = await server.start(self._manager.port_manager.console_host, self.console)
+        self._wrapper_telnet_server = await asyncio.start_server(
+            server.run,
+            self._manager.port_manager.console_host,
+            self.console
+        )
 
     async def stop_wrap_console(self):
         """

gns3server/compute/docker/docker_vm.py

@@ -587,7 +587,7 @@ class DockerVM(BaseNode):
             raise DockerError("Could not start auxiliary console process: {}".format(e))
         server = AsyncioTelnetServer(reader=process.stdout, writer=process.stdin, binary=True, echo=True)
         try:
-            self._telnet_servers.append(await server.start(self._manager.port_manager.console_host, self.aux))
+            self._telnet_servers.append((await asyncio.start_server(server.run, self._manager.port_manager.console_host, self.aux)))
         except OSError as e:
             raise DockerError("Could not start Telnet server on socket {}:{}: {}".format(self._manager.port_manager.console_host, self.aux, e))
         log.debug("Docker container '%s' started listen for auxiliary telnet on %d", self.name, self.aux)
@@ -747,7 +747,7 @@ class DockerVM(BaseNode):
         input_stream = InputStream()
         telnet = AsyncioTelnetServer(reader=output_stream, writer=input_stream, echo=True, naws=True, window_size_changed_callback=self._window_size_changed_callback)
         try:
-            self._telnet_servers.append(await telnet.start(self._manager.port_manager.console_host, self.console))
+            self._telnet_servers.append((await asyncio.start_server(telnet.run, self._manager.port_manager.console_host, self.console)))
         except OSError as e:
             raise DockerError("Could not start Telnet server on socket {}:{}: {}".format(self._manager.port_manager.console_host, self.console, e))
 

gns3server/compute/iou/iou_vm.py

@@ -598,7 +598,8 @@ class IOUVM(BaseNode):
             server = AsyncioTelnetServer(reader=self._iou_process.stdout, writer=self._iou_process.stdin, binary=True,
                                          echo=True)
             try:
-                self._telnet_server = await server.start(self._manager.port_manager.console_host, self.console)
+                self._telnet_server = await asyncio.start_server(server.run, self._manager.port_manager.console_host,
+                                                                 self.console)
             except OSError as e:
                 await self.stop()
                 raise IOUError(

gns3server/compute/virtualbox/virtualbox_vm.py

@@ -982,7 +982,7 @@ class VirtualBoxVM(BaseNode):
                                          binary=True,
                                          echo=True)
             try:
-                self._telnet_server = await server.start(self._manager.port_manager.console_host, self.console)
+                self._telnet_server = await asyncio.start_server(server.run, self._manager.port_manager.console_host, self.console)
             except OSError as e:
                 self.project.emit("log.warning", {"message": "Could not start Telnet server on socket {}:{}: {}".format(self._manager.port_manager.console_host, self.console, e)})
 

gns3server/compute/vmware/vmware_vm.py

@@ -881,7 +881,7 @@ class VMwareVM(BaseNode):
                                          binary=True,
                                          echo=True)
             try:
-                self._telnet_server = await server.start(self._manager.port_manager.console_host, self.console)
+                self._telnet_server = await asyncio.start_server(server.run, self._manager.port_manager.console_host, self.console)
             except OSError as e:
                 self.project.emit("log.warning", {"message": "Could not start Telnet server on socket {}:{}: {}".format(self._manager.port_manager.console_host, self.console, e)})