ssh-agent subprocess parentage

[Phil Pennock]

On 2011-05-09 at 17:13 -0400, Daniel Kahn Gillmor wrote:
> I'm pretty sure this is actually how it works.  ssh-agent forks, and is
> two processes concurrently.  Each process (the parent and the child)
> gets to decide what to do next.  In ssh-agent, the parent process
> exec()'s the subcommand, while the child process lives on as an agent.

I misinterpreted which process you meant when you said parent. I 
apologise.

Curiously, [gpg-agent --daemon cmd] does the exact same thing.

Safety measure so that if the agent dies you don't get left with a login
program reaping its child and resetting the tty while the shell is still
active?  ssh to localhost, then run a second shell, in that kill -9
$PPID, see yourself disconnected while the shell you were typing into is
still running.

-Phil