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Put up additional safe guards to not use inactive/closed tcpdns socket

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When we are operating on the tcpdns socket, we need to double check
whether the socket or its outerhandle or its listener or its mgr is
still active and when not, bail out early.
This commit is contained in:
Ondřej Surý
2020-11-02 15:55:12 +01:00
parent cea4b4db8f
commit c14c1fdd2c
3 changed files with 89 additions and 53 deletions
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lib/isc/netmgr/netmgr-int.h
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@@ -871,7 +871,7 @@ isc__nm_async_tcpdnsstop(isc__networker_t *worker, isc__netievent_t *ev0);
void
isc__nm_async_tcpdnsread(isc__networker_t *worker, isc__netievent_t *ev0);
isc_result_t
void
isc__nm_tcpdns_read(isc_nmhandle_t *handle, isc_nm_recv_cb_t cb, void *cbarg);
void