rsync --server -e VERSION issue
Olivier Thauvin
nanardon at nanardon.zarb.org
Wed Mar 19 21:13:38 GMT 2008
Le mercredi 19 mars 2008, vous avez écrit :
> On Wed, 2008-03-19 at 19:55 +0100, Olivier Thauvin wrote:
> > It seems latest rsync pass -e to the remote server to specify rsync
> > client is a preversion (A thing I understand because -e works on all
> > rsync version). However, this cause problems on server having options
> > restriction, like denying -e because it allow to execute any command on
> > it.
> >
> > So I suggest this patch to limit effect to unstable version of clients.
>
> As you'll see in the lines of code following your change, -e is used to
> signal incremental-recursion and symlink-times support as well as the
> use of an unreleased protocol, so it shouldn't be conditioned solely on
> the unreleased protocol. -e does not cause an rsync *server* to execute
> arbitrary commands (it is used as a remote-shell command only by
> clients), so it is safe and restricted-rsync setups need to be updated
> to accept it. Note: the "support/rrsync" in the rsync 3.0.0 release
> wasn't updated to accept -e, but the current development version accepts
> it.
I didn't said -e cause rsync server running a command, but in the case the
server is setup to allow me to run rsync through ssh, I can rsync by
hand 'ssh computer rsync -e'.
But anyway, I have to revert my patch (in mandriva), it will breaks rsync
options passed on server side.
Blino, sorry...
>
> If you as a client are stuck communicating with an old restricted-rsync
> setup that rejects -e, you can specify as your remote shell command
> (using the client -e option) a wrapper script that removes the -e part
> from the server command.
>
> Matt
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