Re: [PATCH] send-email: don't call methods on undefined values

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On Mon, Sep 09, 2013 at 09:45:10AM -0700, Junio C Hamano wrote:
> "brian m. carlson" <sandals@xxxxxxxxxxxxxxxxxxxx> writes:
> > --- a/git-send-email.perl
> > +++ b/git-send-email.perl
> > @@ -1234,7 +1234,7 @@ X-Mailer: git-send-email $gitversion
> >  				if ($smtp->code == 220) {
> >  					$smtp = Net::SMTP::SSL->start_SSL($smtp,
> >  									  ssl_verify_params())
> > -						or die "STARTTLS failed! ".$smtp->message;
> > +						or die "STARTTLS failed! ".IO::Socket::SSL::errstr();
> 
> I agree that $smtp->message may be bogus at this point, but could
> "require IO::Socket::SSL" have failed on us in ssl_verify_params?
> In that degraded mode, we do not do SSL peer verification, but
> otherwise we would still attempt to talk with the peer, and in such
> a case, IO::Socket::SSL would not be available to us at this point,
> no?

Since Net::SMTP::SSL uses IO::Socket::SSL (in fact, it is an
IO::Socket::SSL), we can be guaranteed that it is, in fact, available at
this point.  I guess strictly we don't need that require in
IO::Socket::SSL since we'll already be guaranteed that it exists by the
require of Net::SMTP::SSL.

I tried using Net::SMTP::SSL::errstr() instead, but that didn't seem to
produce useful output.

-- 
brian m. carlson / brian with sandals: Houston, Texas, US
+1 832 623 2791 | http://www.crustytoothpaste.net/~bmc | My opinion only
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