77 lines
1.9 KiB
C
77 lines
1.9 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 <assert.h>
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#include <stddef.h>
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#include <stdint.h>
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#include <string.h>
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#include <isc/buffer.h>
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#include <isc/util.h>
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#include <dns/compress.h>
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#include <dns/fixedname.h>
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#include <dns/name.h>
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#include <dns/qp.h>
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#include "fuzz.h"
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#include <tests/qp.h>
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bool debug = false;
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int
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LLVMFuzzerInitialize(int *argc, char ***argv) {
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UNUSED(argc);
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UNUSED(argv);
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return 0;
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}
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int
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LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
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dns_fixedname_t fixedin, fixedout, fixedcmp;
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dns_name_t *namein, *nameout, *namecmp;
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isc_buffer_t buf;
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dns_qpkey_t key, cmp;
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namein = dns_fixedname_initname(&fixedin);
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nameout = dns_fixedname_initname(&fixedout);
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namecmp = dns_fixedname_initname(&fixedcmp);
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isc_buffer_constinit(&buf, data, size);
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isc_buffer_add(&buf, size);
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isc_buffer_setactive(&buf, size);
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CHECK(dns_name_fromwire(namein, &buf, DNS_DECOMPRESS_NEVER, NULL));
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/* verify round-trip conversion of first name */
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size_t keylen = dns_qpkey_fromname(key, namein);
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dns_qpkey_toname(key, keylen, nameout);
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assert(dns_name_equal(namein, nameout));
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/* is there a second name? */
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CHECK(dns_name_fromwire(namecmp, &buf, DNS_DECOMPRESS_NEVER, NULL));
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size_t cmplen = dns_qpkey_fromname(cmp, namecmp);
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size_t len = ISC_MIN(keylen, cmplen);
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int namerel = dns_name_compare(namein, namecmp);
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int keyrel = memcmp(key, cmp, len + 1);
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assert((namerel < 0) == (keyrel < 0));
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assert((namerel == 0) == (keyrel == 0));
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assert((namerel > 0) == (keyrel > 0));
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return 0;
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}
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