Re: ssh-client example broken

[Andreas Schneider <asn@xxxxxxxxxxxxxx>]

On Thursday, 16 August 2018 18:11:46 CEST Tilo Eckert wrote:
> Hi,
> 
> today I compiled the examples shipped with libssh (current master) for
> the first time and tried to use the "ssh-client" example, but it seems
> to be broken.
> 
> When I connect to an OpenSSH server in interactive shell mode (i.e.
> ssh-client user@host), the client successfully connects and
> authenticates, but it does not print any output. Keyboard input does not
> work either. Once connected, the client does not react to Ctrl+C, so
> that I have to kill -9 it. When I pass a command as last parameter to
> run in batch mode, it does not print anything either, does not
> terminate, but reacts to Ctrl+C.
> 
> The problem lies in the select_loop() function. I suppose its intention
> is to connect local stdin, stdout and stderr with its remote
> counterparts? The ssh_event_dopoll() function is repeatedly called every
> 60 seconds when it times out or when I press a key, but it seems to do
> nothing.
> 
> With an older version from last year, at least the motd from the server
> gets printed after connecting in interactive mode, but then it gets
> stuck as well. No shell prompt, no input possible, no Ctrl+C. So it
> seems to be broken for a while.


WORKSFORME:

./examples/ssh-client asn@krikkit
Activate the web console with: systemctl enable --now cockpit.socket

Last login: Thu Aug 16 18:50:07 2018 from 2001:a62:160e:
4a01:a935:c919:b383:fa79

Welcome to krikkit. Load: 0.15 0.09 0.08 3/823 24405

asn@krikkit:~> ls workspace/projects/libssh
AUTHORS            CTestConfig.cmake      README              cmake           
doc                                  libssh-config.cmake.in  src
BSD                ChangeLog              README.CodingStyle  config.h.cmake  
examples                             libssh.pc.cmake         tags
CMakeLists.txt     ConfigureChecks.cmake  README.mbedtls      cscope.in.out   
include                              obj                     tests
COPYING            DefineOptions.cmake    README.md           cscope.out      
libssh-build-tree-settings.cmake.in  obj-gcrypt
CPackConfig.cmake  INSTALL                SubmittingPatches   cscope.po.out   
libssh-config-version.cmake.in       obj-mbedcrypto
asn@krikkit:~> logout



I dunno what is wrong on your side ...

-- 
Andreas Schneider                 asn@xxxxxxxxxxxxxx
GPG-ID:     8DFF53E18F2ABC8D8F3C92237EE0FC4DCC014E3D