[MacPorts] #46528: dirmngr: prevent crash

[MacPorts]

#46528: dirmngr: prevent crash
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  Reporter:  rjvbertin@…  |      Owner:  macports-tickets@…
      Type:  defect       |     Status:  new
  Priority:  Normal       |  Milestone:
 Component:  ports        |    Version:
Resolution:               |   Keywords:  haspatch
      Port:  dirmngr      |
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Comment (by rjvbertin@…):

 No, and checking just now I see that this particular issue isn't patched
 by Debian/Ubuntu either.

 Really, my patch is probably just a workaround for an underlying issue I'm
 not really interested to hunt down. If you look at dirmngr.c:667,

 {{{
   /* Libgcrypt requires us to register the threading model first.
      Note that this will also do the pth_init. */

   /* Init Libgcrypt. */
   rc = gcry_control (GCRYCTL_SET_THREAD_CBS, &gcry_threads_pth);
 }}}

 that would suggest that gcry_control doesn't call pth_init() properly. Or
 some other later call undoes that, for whatever reason. An extra
 pth_init() that is redundant (does nothing) in the cases where the crash
 did not occur protects against such events.

 As I said, I'm not interested in hunting this down properly if this
 workaround is enough to prevent a crash report window from popping up for
 certain messages. I thought initially that that crash might be OS X
 specific, but it seems I don't get them on my Linux rig because kmail
 doesn't attempt certificate verification (despite being configured to do
 so).

-- 
Ticket URL: <https://trac.macports.org/ticket/46528#comment:2>
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