Bug#493874: ssh-add -c reports SSH_AGENT_FAILURE and doesn't ask for confirmation

[Colin Watson <cjwatson@debian.org>]

On Tue, Aug 05, 2008 at 11:51:49AM -0300, Wouter Verhelst wrote:
> Since a while, when running 'ssh-add -c' (which is supposed to make
> ssh-agent ask the user for confirmation before allowing use of an ssh
> key), ssh-add prints "SSH_AGENT_FAILURE" on a line by itself (without
> explaining what the exact failure is). The result seems to be that
> ssh-agent then does know the key and allows software to use it, but it
> does not request user confirmation before giving out the secret key.

I can't reproduce this:

  <cjwatson@sarantium ~>$ ssh-add -c
  Enter passphrase for /home/cjwatson/.ssh/id_rsa:
  Identity added: /home/cjwatson/.ssh/id_rsa (/home/cjwatson/.ssh/id_rsa)
  The user has to confirm each use of the key

Is it possible that you are not in fact using ssh-agent, but a different
not-quite-compatible agent provided by something like seahorse? Have a
look at what's behind $SSH_AUTH_SOCK.

-- 
Colin Watson                                       [cjwatson@debian.org]