Hi,

On Mon, Mar 20, 2023 at 02:07:14PM -0400, Selva Nair wrote:
> > Thanks, this change makes sense.  I have not actively tried to provoke
> > it (like, by connecting to a "fake SOCKS server" that will trigger it),
> > but the change is obviously an improvement to "if it's not ==1, it
> > must be a TCP error!").
> 
> An easy way to "provoke" this is to use openssh proxy (say, -D 1080) and
> use it to proxy to a udp server. SSH will close the connection as it does
> not
> support udp association. Probably it should return one of the socks5 error
> code instead, but doesn't. Even if it did, our recv_socks_reply() is not
> capable of
> handling such errors.

Ah, this is helpful.  I did use "socks -D" for the very first t_client.sh
"test with SOCKS", but I found this cumbersome for regular use (need to
ensure the session is up, etc.) I went for "dante" instead - v4, v6, 
UDP, TCP.  And a config language worse than OpenVPN... *cough*.

gert

-- 
"If was one thing all people took for granted, was conviction that if you 
 feed honest figures into a computer, honest figures come out. Never doubted 
 it myself till I met a computer with a sense of humor."
                             Robert A. Heinlein, The Moon is a Harsh Mistress

Gert Doering - Munich, Germany                             g...@greenie.muc.de

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