Re: Don't send "exec" command on login

[Rolando Pereira]

Em 18-02-2009 21:22, Michael Albinus escreveu:
> Rolando Pereira<address@hidden>  writes:
>
> > I need to connect to a server X that I can only connect after
> > connecting to another server Y first.
> >
> > As I understand from reading the documentation, I can do multi-hops
> > using proxies. The problem is that the Y server has a weird shell that
> > only accepts the following commands:
> > ssh, telnet, who, last, passwd, help, version, quit, exit, and logout
> >
> > So when tramp trys to run
> > tramp-open-connection-setup-interactive-shell and send the string
> > "exec env ENV='' PROMPT_COMMAND='' PS1='$ ' PS2='' PS3='' %s" it
> > hangs.
> >
> > If I try to change that string to "ssh X", it works, but since the
> > shell at Y can't add the server key to the known_hosts file, I have to
> > type and addicional "yes" (because of the "Are you sure you want to
> > continue connecting (yes/no)?") plus send the password again.
>
> You should only need to send the "ssh X" command. The handling of the
> "Are you sure ..." dialogue shall happen via `tramp-process-actions'.
>
> Which Tramp/Emacs versions are you using? Could you, please, send me the
> traces with level 6?
>
> Best regards, Michael.

I knew I had forgotten something. Tramp's version is 2.1.15-pre and 
Emacs' version is 23.0.60.1.

The following traces were done using the string "ssh riff.fe.up.pt" 
instead of "exec env ENV='' PROMPT_COMMAND='' PS1='$ ' PS2='' PS3='' %s" 
in the line 5945 of the file tramp.el (in the function 
tramp-open-connection-setup-interactive-shell).

The *debug tramp/telnet address@hidden buffer:
http://rolando.do.sapo.pt/debug_tramp_telnet.txt

The *tramp/telnet address@hidden buffer:
http://rolando.do.sapo.pt/tramp_telnet.txt

Also, the first server (tcpgate.fe.up.pt) is connected using telnet and 
only the second using ssh.