[tor-bugs] #8788 [Tor]: We can crash on a bad resolv.conf file

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#8788: We can crash on a bad resolv.conf file
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 Reporter:  nickm      |          Owner:                    
     Type:  defect     |         Status:  new               
 Priority:  minor      |      Milestone:  Tor: 0.2.5.x-final
Component:  Tor        |        Version:                    
 Keywords:  tor-relay  |         Parent:                    
   Points:             |   Actualpoints:                    
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 When we use NEXT_TOKEN in resolv_conf_parse_line, we unconditionally call
 evdns_nameserver_ip_add() on the result, when it might be NULL.

 resolv.conf isn't adversary-controlled, so this isn't a huge deal, but we
 should fix it.  Libevent should get this fix too.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/8788>
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