new option ssh-add -v to verify if key is loaded into the agent

[Ángel González]

Roumen Petrov wrote:
> Konrad Bucheli wrote:
>> Dear openssh developers
>>
>> In a shell script I need to verify if a key belonging to a given public
>> key file is already loaded into the agent. To achieve this, I added a
>> new option -v to ssh-add which does this verification.
>>    
> What is rationale  to write 100 lines of C-code instead 1 line in
> shell script ?

I suspect that when you start trying to take all quirks into account,
the C code will be much easier.