48 lines
1.3 KiB
C++
48 lines
1.3 KiB
C++
/* 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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#include <fuzzer/FuzzedDataProvider.h>
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// Returns a NULL-terminated C string that should be freed by the caller.
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char *get_modifiable_string(FuzzedDataProvider &provider) {
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std::string s1 = provider.ConsumeRandomLengthString();
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char *tmp = (char *)malloc(s1.size() + 1);
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memcpy(tmp, s1.c_str(), s1.size());
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tmp[s1.size()] = '\0';
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return tmp;
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}
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FuzzedDataProvider *prov = NULL;
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extern "C" ssize_t fuzz_get_random_data(void *buf, size_t len) {
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size_t ret_val;
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char *cbuf = (char*)buf;
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if (prov->remaining_bytes() == 0) {
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return -1;
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}
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double prob = prov->ConsumeProbability<double>();
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if (prob < 0.05) {
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return 0;
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}
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if (len == 1) {
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ret_val = prov->ConsumeData(buf, 1);
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return ret_val;
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}
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ret_val = prov->ConsumeData(buf, len);
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return ret_val;
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}
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