mirror of https://github.com/google/oss-fuzz.git
64 lines
2.0 KiB
C++
64 lines
2.0 KiB
C++
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/* Copyright 2021 Google LLC
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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extern "C" {
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#include "dnsmasq.h"
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}
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#include <fuzzer/FuzzedDataProvider.h>
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extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
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FuzzedDataProvider provider(data, size);
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std::string inp1 = provider.ConsumeRandomLengthString();
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std::string inp2 = provider.ConsumeRandomLengthString();
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// Util logic
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hostname_isequal(inp1.c_str(), inp2.c_str());
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legal_hostname((char *)inp1.c_str());
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char *tmp = canonicalise((char *)inp1.c_str(), NULL);
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if (tmp != NULL) {
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free(tmp);
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}
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char *tmp_out = (char *)malloc(30);
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int mac_type;
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parse_hex((char *)inp1.c_str(), (unsigned char *)tmp_out, 30, NULL, NULL);
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parse_hex((char *)inp1.c_str(), (unsigned char *)tmp_out, 30, NULL,
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&mac_type);
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free(tmp_out);
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wildcard_match((char *)inp1.c_str(), (char *)inp2.c_str());
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if (inp1.size() < inp2.size()) {
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wildcard_matchn(inp1.c_str(), inp2.c_str(), inp1.size());
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} else {
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wildcard_matchn(inp1.c_str(), inp2.c_str(), inp2.size());
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}
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hostname_issubdomain((char *)inp1.c_str(), (char *)inp2.c_str());
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// rfc1035-related logic
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size_t plen = sizeof(struct dns_header) + size;
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char *tmp_dns_packet = (char *)malloc(plen);
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char *tmp3 = tmp_dns_packet + sizeof(struct dns_header);
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memcpy(tmp3, data, size);
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extract_name((struct dns_header *)tmp_dns_packet, plen,
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(unsigned char **)&tmp3, (char *)inp1.c_str(), 0, 0);
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free(tmp_dns_packet);
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union all_addr addr;
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in_arpa_name_2_addr((char *)inp1.c_str(), &addr);
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return 0;
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}
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