[Varnish] #1086: VGZ_WrwGunzip loops forever if receiving junk data after end of gzip data

[Varnish]

#1086: VGZ_WrwGunzip loops forever if receiving junk data after end of gzip data
----------------------+---------------------
 Reporter:  martin    |       Owner:  martin
     Type:  defect    |      Status:  new
 Priority:  normal    |   Milestone:
Component:  varnishd  |     Version:  3.0.2
 Severity:  normal    |  Resolution:
 Keywords:            |
----------------------+---------------------

Comment (by lgx):

 3.0.3 has the same problem.

 The reason is, VGZ_WrwGunzip dones't process the return code VGZ_END of
 VGZ_Gunzip.
 So it will loop forever at this situation.

 I think the fix would be:
         if (i < VGZ_OK) {
             /* XXX: VSL ? */
             return (-1);
         }
 +        else if(i == VGZ_END)
 +        {
 +            break;
 +        }

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Ticket URL: <https://www.varnish-cache.org/trac/ticket/1086#comment:10>
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