Wraps a subprocess running ProxyCommand-driven programs.
This class implements a the socket-like interface needed by the
Packetizerclasses. Using this class instead of a regular socket makes it possible to talk with a Popen’d command that will proxy traffic between the client and a server hosted in another machine.
Instances of this class may be used as context managers.
Create a new CommandProxy instance. The instance created by this class can be passed as an argument to the
Parameters: command_line (str) – the command that should be executed and used as the proxy.
Read from the standard output of the forked program.
Parameters: size (int) – how many chars should be read Returns: the string of bytes read, which may be shorter than requested