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4db150437e
to reduce the amount of common code that will need to be shared between the separated cache and zone database implementations, clean up unused portions of dns_db. the methods dns_db_dump(), dns_db_isdnssec(), dns_db_printnode(), dns_db_resigned(), dns_db_expirenode() and dns_db_overmem() were either never called or were only implemented as nonoperational stub functions: they have now been removed. dns_db_nodefullname() was only used in one place, which turned out to be unnecessary, so it has also been removed. dns_db_ispersistent() and dns_db_transfernode() are used, but only the default implementation in db.c was ever actually called. since they were never overridden by database methods, there's no need to retain methods for them. in rbtdb.c, beginload() and endload() methods are no longer defined for the cache database, because that was never used (except in a few unit tests which can easily be modified to use the zone implementation instead). issecure() is also no longer defined for the cache database, as the cache is always insecure and the default implementation of dns_db_issecure() returns false. for similar reasons, hashsize() is no longer defined for zone databases. implementation functions that are shared between zone and cache are now prepended with 'dns__rbtdb_' so they can become nonstatic. serve_stale_ttl is now a common member of dns_db.
340 lines
7.8 KiB
C
340 lines
7.8 KiB
C
/*
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* Copyright (C) Internet Systems Consortium, Inc. ("ISC")
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*
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* SPDX-License-Identifier: MPL-2.0
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, you can obtain one at https://mozilla.org/MPL/2.0/.
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*
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* See the COPYRIGHT file distributed with this work for additional
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* information regarding copyright ownership.
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*/
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#include <inttypes.h>
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#include <sched.h> /* IWYU pragma: keep */
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#include <setjmp.h>
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#include <stdarg.h>
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#include <stddef.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#define UNIT_TESTING
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#include <cmocka.h>
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#include <isc/util.h>
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#include <dns/db.h>
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#include <dns/dbiterator.h>
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#include <dns/name.h>
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#include <tests/dns.h>
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#define BUFLEN 255
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#define BIGBUFLEN (64 * 1024)
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#define TEST_ORIGIN "test"
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static isc_result_t
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make_name(const char *src, dns_name_t *name) {
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isc_buffer_t b;
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isc_buffer_constinit(&b, src, strlen(src));
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isc_buffer_add(&b, strlen(src));
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return (dns_name_fromtext(name, &b, dns_rootname, 0, NULL));
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}
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/* create: make sure we can create a dbiterator */
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static void
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test_create(const char *filename) {
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isc_result_t result;
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dns_db_t *db = NULL;
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dns_dbiterator_t *iter = NULL;
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result = dns_test_loaddb(&db, dns_dbtype_zone, TEST_ORIGIN, filename);
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assert_int_equal(result, ISC_R_SUCCESS);
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result = dns_db_createiterator(db, 0, &iter);
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assert_int_equal(result, ISC_R_SUCCESS);
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dns_dbiterator_destroy(&iter);
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dns_db_detach(&db);
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}
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ISC_RUN_TEST_IMPL(create) {
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UNUSED(state);
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test_create(TESTS_DIR "/testdata/dbiterator/zone1.data");
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}
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ISC_RUN_TEST_IMPL(create_nsec3) {
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UNUSED(state);
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test_create(TESTS_DIR "/testdata/dbiterator/zone2.data");
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}
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/* walk: walk a database */
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static void
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test_walk(const char *filename, int nodes) {
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isc_result_t result;
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dns_db_t *db = NULL;
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dns_dbiterator_t *iter = NULL;
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dns_dbnode_t *node = NULL;
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dns_name_t *name;
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dns_fixedname_t f;
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int i = 0;
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name = dns_fixedname_initname(&f);
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result = dns_test_loaddb(&db, dns_dbtype_zone, TEST_ORIGIN, filename);
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assert_int_equal(result, ISC_R_SUCCESS);
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result = dns_db_createiterator(db, 0, &iter);
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assert_int_equal(result, ISC_R_SUCCESS);
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for (result = dns_dbiterator_first(iter); result == ISC_R_SUCCESS;
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result = dns_dbiterator_next(iter))
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{
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result = dns_dbiterator_current(iter, &node, name);
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if (result == DNS_R_NEWORIGIN) {
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result = ISC_R_SUCCESS;
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}
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assert_int_equal(result, ISC_R_SUCCESS);
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dns_db_detachnode(db, &node);
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i++;
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}
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assert_int_equal(i, nodes);
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dns_dbiterator_destroy(&iter);
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dns_db_detach(&db);
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}
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ISC_RUN_TEST_IMPL(walk) {
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UNUSED(state);
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test_walk(TESTS_DIR "/testdata/dbiterator/zone1.data", 13);
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}
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ISC_RUN_TEST_IMPL(walk_nsec3) {
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UNUSED(state);
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test_walk(TESTS_DIR "/testdata/dbiterator/zone2.data", 33);
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}
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/* reverse: walk database backwards */
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static void
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test_reverse(const char *filename) {
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isc_result_t result;
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dns_db_t *db = NULL;
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dns_dbiterator_t *iter = NULL;
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dns_dbnode_t *node = NULL;
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dns_name_t *name;
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dns_fixedname_t f;
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int i = 0;
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name = dns_fixedname_initname(&f);
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result = dns_test_loaddb(&db, dns_dbtype_zone, TEST_ORIGIN, filename);
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assert_int_equal(result, ISC_R_SUCCESS);
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result = dns_db_createiterator(db, 0, &iter);
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assert_int_equal(result, ISC_R_SUCCESS);
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for (result = dns_dbiterator_last(iter); result == ISC_R_SUCCESS;
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result = dns_dbiterator_prev(iter))
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{
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result = dns_dbiterator_current(iter, &node, name);
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if (result == DNS_R_NEWORIGIN) {
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result = ISC_R_SUCCESS;
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}
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assert_int_equal(result, ISC_R_SUCCESS);
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dns_db_detachnode(db, &node);
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i++;
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}
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assert_int_equal(i, 12);
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dns_dbiterator_destroy(&iter);
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dns_db_detach(&db);
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}
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ISC_RUN_TEST_IMPL(reverse) {
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UNUSED(state);
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test_reverse(TESTS_DIR "/testdata/dbiterator/zone1.data");
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}
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ISC_RUN_TEST_IMPL(reverse_nsec3) {
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UNUSED(state);
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test_reverse(TESTS_DIR "/testdata/dbiterator/zone2.data");
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}
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/* seek: walk database starting at a particular node */
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static void
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test_seek_node(const char *filename, int nodes) {
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isc_result_t result;
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dns_db_t *db = NULL;
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dns_dbiterator_t *iter = NULL;
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dns_dbnode_t *node = NULL;
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dns_name_t *name, *seekname;
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dns_fixedname_t f1, f2;
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int i = 0;
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name = dns_fixedname_initname(&f1);
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seekname = dns_fixedname_initname(&f2);
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result = dns_test_loaddb(&db, dns_dbtype_zone, TEST_ORIGIN, filename);
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assert_int_equal(result, ISC_R_SUCCESS);
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result = dns_db_createiterator(db, 0, &iter);
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assert_int_equal(result, ISC_R_SUCCESS);
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result = make_name("c." TEST_ORIGIN, seekname);
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assert_int_equal(result, ISC_R_SUCCESS);
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result = dns_dbiterator_seek(iter, seekname);
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assert_int_equal(result, ISC_R_SUCCESS);
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while (result == ISC_R_SUCCESS) {
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result = dns_dbiterator_current(iter, &node, name);
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if (result == DNS_R_NEWORIGIN) {
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result = ISC_R_SUCCESS;
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}
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assert_int_equal(result, ISC_R_SUCCESS);
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dns_db_detachnode(db, &node);
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result = dns_dbiterator_next(iter);
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i++;
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}
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assert_int_equal(i, nodes);
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dns_dbiterator_destroy(&iter);
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dns_db_detach(&db);
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}
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ISC_RUN_TEST_IMPL(seek_node) {
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UNUSED(state);
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test_seek_node(TESTS_DIR "/testdata/dbiterator/zone1.data", 10);
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}
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ISC_RUN_TEST_IMPL(seek_node_nsec3) {
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UNUSED(state);
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test_seek_node(TESTS_DIR "/testdata/dbiterator/zone2.data", 30);
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}
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/*
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* seek_emty: walk database starting at an empty nonterminal node
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* (should fail)
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*/
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static void
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test_seek_empty(const char *filename) {
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isc_result_t result;
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dns_db_t *db = NULL;
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dns_dbiterator_t *iter = NULL;
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dns_name_t *seekname;
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dns_fixedname_t f1;
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seekname = dns_fixedname_initname(&f1);
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result = dns_test_loaddb(&db, dns_dbtype_zone, TEST_ORIGIN, filename);
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assert_int_equal(result, ISC_R_SUCCESS);
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result = dns_db_createiterator(db, 0, &iter);
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assert_int_equal(result, ISC_R_SUCCESS);
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result = make_name("d." TEST_ORIGIN, seekname);
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assert_int_equal(result, ISC_R_SUCCESS);
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result = dns_dbiterator_seek(iter, seekname);
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assert_int_equal(result, DNS_R_PARTIALMATCH);
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dns_dbiterator_destroy(&iter);
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dns_db_detach(&db);
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}
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ISC_RUN_TEST_IMPL(seek_empty) {
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UNUSED(state);
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test_seek_empty(TESTS_DIR "/testdata/dbiterator/zone1.data");
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}
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ISC_RUN_TEST_IMPL(seek_empty_nsec3) {
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UNUSED(state);
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test_seek_empty(TESTS_DIR "/testdata/dbiterator/zone2.data");
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}
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/*
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* seek_nx: walk database starting at a nonexistent node
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*/
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static void
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test_seek_nx(const char *filename) {
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isc_result_t result;
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dns_db_t *db = NULL;
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dns_dbiterator_t *iter = NULL;
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dns_name_t *seekname;
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dns_fixedname_t f1;
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seekname = dns_fixedname_initname(&f1);
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result = dns_test_loaddb(&db, dns_dbtype_zone, TEST_ORIGIN, filename);
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assert_int_equal(result, ISC_R_SUCCESS);
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result = dns_db_createiterator(db, 0, &iter);
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assert_int_equal(result, ISC_R_SUCCESS);
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result = make_name("nonexistent." TEST_ORIGIN, seekname);
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assert_int_equal(result, ISC_R_SUCCESS);
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result = dns_dbiterator_seek(iter, seekname);
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assert_int_equal(result, DNS_R_PARTIALMATCH);
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result = make_name("nonexistent.", seekname);
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assert_int_equal(result, ISC_R_SUCCESS);
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result = dns_dbiterator_seek(iter, seekname);
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assert_int_equal(result, ISC_R_NOTFOUND);
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dns_dbiterator_destroy(&iter);
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dns_db_detach(&db);
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}
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ISC_RUN_TEST_IMPL(seek_nx) {
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UNUSED(state);
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test_seek_nx(TESTS_DIR "/testdata/dbiterator/zone1.data");
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}
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ISC_RUN_TEST_IMPL(seek_nx_nsec3) {
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UNUSED(state);
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test_seek_nx(TESTS_DIR "/testdata/dbiterator/zone2.data");
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}
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/*
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* XXX:
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* dns_dbiterator API calls that are not yet part of this unit test:
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*
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* dns_dbiterator_pause
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* dns_dbiterator_origin
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* dns_dbiterator_setcleanmode
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*/
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ISC_TEST_LIST_START
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ISC_TEST_ENTRY(create)
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ISC_TEST_ENTRY(create_nsec3)
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ISC_TEST_ENTRY(walk)
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ISC_TEST_ENTRY(walk_nsec3)
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ISC_TEST_ENTRY(reverse)
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ISC_TEST_ENTRY(reverse_nsec3)
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ISC_TEST_ENTRY(seek_node)
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ISC_TEST_ENTRY(seek_node_nsec3)
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ISC_TEST_ENTRY(seek_empty)
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ISC_TEST_ENTRY(seek_empty_nsec3)
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ISC_TEST_ENTRY(seek_nx)
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ISC_TEST_ENTRY(seek_nx_nsec3)
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ISC_TEST_LIST_END
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ISC_TEST_MAIN
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