As another commenter says, you can use socat. Specifically, you can run it in double client mode (see http://www.dest-unreach.org/socat/doc/socat-gender.txt htt

As another commenter says, you can use socat. Specifically, you can run it in double client mode (see http://www.dest-unreach.org/socat/doc/socat-gender.txt http://www.dest-unreach.org/socat/doc/socat-gender.txt) to connect the UNIX socket to the service.