Re: [sshfs] sshfs doesn't use SSH_ASKPASS

[Miklos S. <mi...@sz...>]

> I'm trying to make a GUI frontend for sshfs, but unfortunately, I
> found SSH_ASKPASS environment has no effect under sshfs. I know
> running ssh under terminal will disable this environment variable, so
> I run sshfs with this environment variable exported under file
> manager.
> I created a script like this:
> -----------------------------
> #!/bin/sh
> export SSH_ASKPASS=<My program showing a dialog for the uesr to type password>
> sshfs <My SSH server>:/ <My mount point>
> ------------------------------
> I run the script under terminal. As expected, the password prompt was
> showed in the terminal, just like what described in the manpage of
> ssh.
> And then I run the script under Nautilus, bypassing the terminal, but
> my password dialog didn't show at all, and sshfs doesn't work.
> 
> I slightly modified the script, and try sftp and ssh.
> -----------------------------
> #!/bin/sh
> export SSH_ASKPASS=<My program showing a dialog for the uesr to type password>
> sftp <My SSH server>
> ------------------------------
> Then, run the script under Nautilus again. The dialog correctly showed
> up immediately.
> Moreover, I replace sftp in this script with ssh, and my dialog showed
> correctly, too.

Strange.

I haven't tested with Nautilus, but generally SSH_ASKPASS works fine with
sshfs.

> So, that should be the problem of sshfs. I don't know how could this
> happen since nothing unusual was noted in the source code of sshfs.
> But it did happened. So please have it fixed or this will disable the
> development of any GUI frontend. Thank you.

Can you try running your script without Nautilus, but with 'setsid',
which should make ssh use the SSH_ASKPASS variable:

  setsid ./script.sh

Another thing you could try, is to redirect the output of the sshfs
process to a file in the script, to see what is going wrong.  Like this:

---------------------
#!/bin/sh
export SSH_ASKPASS=my_askpass
sshfs my_server:/ /my_mountpoint > /tmp/sshfsout 2>&1
---------------------

Thanks,
Miklos