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The stale-answer-client-timeout feature introduced a dependancy on when a client may be detached from the handle. The dboption DNS_DBFIND_STALEONLY was reused to track this attribute. This overloads the meaning of this database option, and actually introduced a bug because the option was checked in other places. In particular, in 'ns_query_done()' there is a check for 'RECURSING(qctx->client) && (!QUERY_STALEONLY(&qctx->client->query) || ...' and the condition is satisfied because recursion has not completed yet and DNS_DBFIND_STALEONLY is already cleared by that time (in query_lookup()), because we found a useful answer and we should detach the client from the handle after sending the response. Add a new boolean to the client structure to keep track of client detach from handle is allowed or not. It is only disallowed if we are in a staleonly lookup and we didn't found a useful answer. |
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| .. | ||
| client.h | ||
| events.h | ||
| hooks.h | ||
| interfacemgr.h | ||
| lib.h | ||
| listenlist.h | ||
| log.h | ||
| notify.h | ||
| query.h | ||
| server.h | ||
| sortlist.h | ||
| stats.h | ||
| types.h | ||
| update.h | ||
| xfrout.h | ||