return 0 in verify_cb gives ssl3_get_client_certificate warning

[Tobias Nissen]

Marc Lehmann wrote:
> On Mon, Nov 14, 2011 at 07:10:06PM +0100, Tobias Nissen <tn at movb.de> wrote:
>> using a custom verification callback with AnyEvent::MPRPC I get
>> 
>>   ssl3_get_client_certificate: no certificate returned
> 
> I get:
> 
>    Server got error: ssl3_get_client_certificate: no certificate
> returned at /opt/perl/lib/perl5/AnyEvent/Handle.pm line 616
> 
> and thats because printing that is what AnyEvent::MPRPC does by
> default in its on_error handler.
> 
> However, this is a TLS error, and I am not sure it's recoverable (it's
> definitely not recoverable in AnyEvent::Handle).

FYI: http://groups.google.com/group/mailing.openssl.users/browse_thread/thread/01290cd7bf096548#
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