openssh unix dev - Jan 2003 - Is sftp-server's stdout redirected to client ?

Hello everyone,

I added some code to sftp, which would be useful for me. I add a
command "run", which can run any command on the remote shell, in the
mean
time I want the server send the standard output back. for example, when I :

sftp> run ls

I want to see the result locally.

I thought the stdout of sftp-server has been redirected to the client. But
I get "message too long" error. When I check the received buffer, it
do
have part of the server's standard output, but it is messed up.

How do I fix it? Thanks,

Hanzhou

this won't work. you need to extend the sftp protocol.

sftp-server prints the messages to stdout and
expencts the requests from the client on stdin.

i don't think this change makes sense.

On Sun, Jan 05, 2003 at 10:12:45PM -0500, zhang at csee.wvu.edu
wrote:
> Hello everyone,
> 
> I added some code to sftp, which would be useful for me. I add a
> command "run", which can run any command on the remote shell, in
the mean
> time I want the server send the standard output back. for example, when I :
> 
> sftp> run ls
> 
> I want to see the result locally.
> 
> I thought the stdout of sftp-server has been redirected to the client. But
> I get "message too long" error. When I check the received buffer,
it do
> have part of the server's standard output, but it is messed up.
> 
> How do I fix it? Thanks,
> 
> Hanzhou
> 
> 
> _______________________________________________
> openssh-unix-dev at mindrot.org mailing list
> http://www.mindrot.org/mailman/listinfo/openssh-unix-dev

Hello,
  Another suggestion - redirect the command output to stderr, this will go
  to the sftp-client stderr and (in openssh client) will showed on the
screen.
  (The syntax depend on the shell on the server).
  In the sftp protocol there is no way to send data to the client in any
other way.
--
 Avraham
---------------------------------------


Markus Friedl Wrote:

this won't work. you need to extend the sftp protocol.

sftp-server prints the messages to stdout and
expencts the requests from the client on stdin.

i don't think this change makes sense.


On Sun, Jan 05, 2003 at 10:12:45PM -0500, zhang at csee.wvu.edu
wrote:
> Hello everyone,
> 
> I added some code to sftp, which would be useful for me. I add a
> command "run", which can run any command on the remote shell, in
the mean
> time I want the server send the standard output back. for example, when I
:
> 
> sftp> run ls
> 
> I want to see the result locally.
> 
> I thought the stdout of sftp-server has been redirected to the client. But
> I get "message too long" error. When I check the received buffer,
it do
> have part of the server's standard output, but it is messed up.
> 
> How do I fix it? Thanks,
> 
> Hanzhou
> 
> 
> _______________________________________________
> openssh-unix-dev at mindrot.org mailing list
> http://www.mindrot.org/mailman/listinfo/openssh-unix-dev
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