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Synchronze udp_ready() and tcp_connected() functions entry behavior

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The `udp_ready()` and `tcp_connected()` functions in dighost.c are
used for similar purposes for UDP and TCP respectively.

Synchronize the `udp_ready()` function entry code to behave like
`tcp_connected()` by adding input validation, debug messages and
early exit code when `cancel_now` is `true`.
This commit is contained in:
Aram Sargsyan 2022-03-29 20:58:15 +00:00 committed by Arаm Sаrgsyаn
parent 3a5793ece2
commit 4477f71868
1 changed files with 14 additions and 0 deletions
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14
bin/dig/dighost.c
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@ -3097,8 +3097,22 @@ udp_ready(isc_nmhandle_t *handle, isc_result_t eresult, void *arg) {
dig_query_t *readquery = NULL;
int local_timeout = timeout * 1000;
REQUIRE(DIG_VALID_QUERY(query));
REQUIRE(query->handle == NULL);
debug("udp_ready()");
query->started = true;
if (atomic_load(&cancel_now)) {
return;
}
INSIST(!free_now);
debug("udp_ready(%p, %s, %p)", handle, isc_result_totext(eresult),
query);
if (eresult == ISC_R_CANCELED || query->canceled) {
dig_lookup_t *l = query->lookup;