vanessa_socket_pipe (1) Linux Manual Page
vanessa_socket_pipe – Trivial TCP/IP pipe based on libvanessa_socket
Synopsis
vanessa_socket_pipe [options]Description
A TCP/IP pipe is a user space programme that listens for TCP/IP connections on port on the local host and when a client connects makes a connection to a TCP port, possibly on another host. Once both connections are established data sent on one connection is relayed to the other, hence forming a bi-directional pipe.Uses include enabling connections to specific ports on hosts behind a packet filter.
This code is intended primarily as an example of how many of the features of libvanessa_socket work.
Options
- -c|–connection_limit:
- Maximum number of connections to accept simultaneously. A value of zero sets no limit on the number of simultaneous connections. (default 0)
- -d|–debug:
- Turn on verbose debuging to stderr.
- -h|–help:
- Display this message.
- -L|–listen_port:
- Port to listen on. (mandatory)
- -l|–listen_host:
- Address to listen on. May be a hostname or an IP address. If not defined then listen on all local addresses.
- -n|–no_lookup:
- Turn off lookup of hostnames and portnames. That is, hosts must be given as IP addresses and ports must be given as numbers.
- -O|–outgoing_port:
- Define a port to connect to. If not specified -l|–listen_port will be used.
- -o|–outgoing_host:
- Define host to connect to. May be a hostname or an IP address. (mandatory)
- -q|–quiet:
- Only log errors. Overriden by -d|–debug.
- -t|–timeout:
- Idle timeout in seconds. Value of zero sets infinite timeout. (default 1800)
- Notes:
- Default value for binary flags is off.
-L|–listen_port and -o|–outgoing_host must be defined.