[Pidgin] #3995: Pidgin crashes in jabber_caps_client_iqcb

[Pidgin]

#3995: Pidgin crashes in jabber_caps_client_iqcb
------------------------+---------------------------------------------------
  Reporter:  maniax     |       Owner:              
      Type:  defect     |      Status:  new         
  Priority:  minor      |   Milestone:              
 Component:  libpurple  |     Version:  2.2.2       
Resolution:             |    Keywords:  jabber crash
   Pending:  0          |  
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Comment (by maniax):

 Doesn't crash if recompiled with this added at line 438 at
 libpurple/protocols/jabber/caps.c

         if (!query) return;

 (I know it's an ugly hack, but there's no handling if NULL gets returned
 by
 {{{
         xmlnode *query =
 xmlnode_get_child_with_namespace(packet,"query","http://jabber.org/protocol/disco#info");
 }}}

 at caps.c:429.

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Ticket URL: <http://developer.pidgin.im/ticket/3995#comment:1>
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