[Pidgin] #949: sigpipe crashes for pidgin on unstable connection

[Pidgin]

#949: sigpipe crashes for pidgin on unstable connection
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 Reporter:  kstange                             |       Owner:  MarkDoliner
     Type:  defect                              |      Status:  new        
 Priority:  major                               |   Milestone:             
Component:  libpurple                           |     Version:  2.0        
 Keywords:  sigpipe crash oscar msn disconnect  |     Pending:  0          
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 My connection is horribly unstable, and often when I gets disconnected
 from AIM or MSN, I get a SIGPIPE.  Attached is the BT and debug output
 relevant to the crash for each PRPL.  This file contains both the MSN and
 the OSCAR crashes.  The OSCAR one is the second one.  Both seem to be
 because the connection disappears and the PRPL tries to write to the FD
 after it's gone.  I'm not familiar enough with the PRPLs to know how best
 to detect the lost connection and clean up, but in MSN's case, the
 connection check is like this before sending to the closed FD at
 cmdproc.c:157:

         if (!servconn->connected)
                 return;

 So, 'connected' is not being set to FALSE and it's trying to send the
 disconnection message to the server posthumously.  I presume OSCAR is
 similar.

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Ticket URL: <http://developer.pidgin.im/ticket/949>
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