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catz: unregister the db update-notify callback before detaching from db

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When detaching from the previous version of the database, make sure
that the update-notify callback is unregistered, otherwise there is
an INSIST check which can generate an assertion failure in free_rbtdb(),
which checks that there are no outstanding update listeners in the list.

There is a similar code already in place for RPZ.
This commit is contained in:
Aram Sargsyan 2023-01-27 08:47:52 +00:00 committed by Arаm Sаrgsyаn
parent 0ef0c86632
commit cf79692a66
1 changed files with 2 additions and 0 deletions
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2
lib/dns/catz.c
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@ -2106,6 +2106,8 @@ dns_catz_dbupdate_callback(dns_db_t *db, void *fn_arg) {
if (catz->dbversion != NULL) { if (catz->dbversion != NULL) {
dns_db_closeversion(catz->db, &catz->dbversion, false); dns_db_closeversion(catz->db, &catz->dbversion, false);
} }
dns_db_updatenotify_unregister(
catz->db, dns_catz_dbupdate_callback, catz->catzs);
dns_db_detach(&catz->db); dns_db_detach(&catz->db);
/* /*
* We're not registering db update callback, it will be * We're not registering db update callback, it will be