[dancer-users] Dancer crashing

[Chad Wallace]

On Wed, 13 Mar 2019 08:51:04 -0700
Hermann Calabria <hermann at ivouch.com> wrote:

> I don’t have fatal warnings turned on.
> 
> Also, reviewing the stack trace, none of the calls appear to go
> through the app.  The only packages involved are:
> 
> HTTP::Server::Simple
> Dancer::Handler::Standalone
> Dancer::Handler
> Dancer

Here are lines 396 and 397 of HTTP/Server/Simple.pm (version 0.52):

        my $remote_sockaddr = getpeername( $self->stdio_handle );
        my $family = sockaddr_family($remote_sockaddr);

So $remote_sockaddr is undef.  It should avoid calling sockaddr_family()
in that case.


> From: Andrew Beverley
> Sent: Tuesday, March 12, 2019 3:56 PM
> To: Perl Dancer users mailing list
> Cc: Hermann Calabria
> Subject: Re: [dancer-users] Dancer crashing
> 
> On Tue, 12 Mar 2019 15:08:46 -0700 Hermann Calabria wrote:
> > Sure, it’s probably something my app is doing.  However I expect
> > Dancer to be resilient enough to not crash in this manner.  
> 
> FWIW, I did notice that the crash appeared to happen because of an
> uninitialized value. Do you have fatal warnings turned on, and could
> that be one of the causes? I don't know, but does Dancer normally run
> without fatal warnings, and maybe the problem you encountered wouldn't
> normally be fatal?
> 
> Andy
> 


-- 

C. Chad Wallace, B.Sc.
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