56 lines
1.8 KiB
C
56 lines
1.8 KiB
C
// Copyright 2020 Google Inc.
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//
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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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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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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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#include <stddef.h>
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#include <stdint.h>
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#include <stdlib.h>
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#include <string.h>
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#include "inchi_api.h"
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// Define the maximum value for size_t. We return if the fuzzing input is equal
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// to kSizeMax because appending the null-terminator to the InChI buffer would
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// cause wraparound, thereby initializing the buffer to size 0.
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static const size_t kSizeMax = (size_t)-1;
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int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
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if (size == kSizeMax)
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return 0;
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char *szINCHISource = malloc(sizeof(char) * (size + 1));
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memcpy(szINCHISource, data, size);
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szINCHISource[size] = '\0'; // InChI string must be null-terminated
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// Buffer lengths taken from InChI API reference, located at
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// https://www.inchi-trust.org/download/104/InChI_API_Reference.pdf, page 24
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char szINCHIKey[28], szXtra1[65], szXtra2[65];
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GetINCHIKeyFromINCHI(szINCHISource, 0, 0, szINCHIKey, szXtra1, szXtra2);
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inchi_InputINCHI inpInChI;
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inpInChI.szInChI = szINCHISource;
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inchi_Output out;
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GetINCHIfromINCHI(&inpInChI, &out);
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inchi_OutputStruct outStruct;
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GetStructFromINCHI(&inpInChI, &outStruct);
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free(szINCHISource);
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FreeINCHI(&out);
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FreeStructFromINCHI(&outStruct);
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return 0;
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}
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