vanessa_socket_pipe (1) Linux Manual Page
NAME
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.
AUTHOR
Simon Horman <horms [at] verge.net.au>