Please support fixed connection destination about udptunnel HOT 5 CLOSED

Just as heads-up, I've started working on this, in a bit more general
fashion: the server can be started with a white-list of host:port
combinations, and any connections to destinations not covered by that
list will be denied.

Right now, I have this working, for example:

    % udptunnel -s localhost 2222 nathot:22

    # Another terminal:
    % udptunnel -vvv -c localhost 1235 localhost 2222 nathot 23 &
    % telnet localhost 1235

    # On the first terminal again:
    Connection to nathot:23 denied

I will post a patch once I've had time to test this more thoroughly.

That's a good idea and would be a good feature. Thanks for working on that.

Here is the promised patch; it seems to work fine in basic tests. Still 
missing: more
thorough command-line parsing/error reporting, documentation.

Extended the 'destination' patch into an 'acl' component. Now the source 
IP/port and destination IP/port can be specified. Multiple rules are allowed 
and matches can be allowed or denied.

Extended the 'destination' patch into an 'acl' component. Now the source 
IP/port and destination IP/port can be specified. Multiple rules are allowed 
and matches can be allowed or denied.