Mercurial > hg
annotate contrib/fuzz/bdiff.cc @ 43809:51a99e09c54b
fuzz: always define LLVMFuzzerInitialize() even if we don't need it
This will make it easier to test our fuzzers outside oss-fuzz.
Differential Revision: https://phab.mercurial-scm.org/D7560
author | Augie Fackler <augie@google.com> |
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date | Fri, 06 Dec 2019 15:05:34 -0500 |
parents | dbc39f028c9f |
children | 5a9e2ae9899b |
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1 /* |
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2 * bdiff.cc - fuzzer harness for bdiff.c |
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3 * |
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4 * Copyright 2018, Google Inc. |
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5 * |
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6 * This software may be used and distributed according to the terms of |
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7 * the GNU General Public License, incorporated herein by reference. |
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8 */ |
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9 #include <memory> |
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10 #include <stdlib.h> |
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11 |
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12 #include <fuzzer/FuzzedDataProvider.h> |
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13 |
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14 extern "C" { |
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15 #include "bdiff.h" |
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16 |
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17 extern "C" int LLVMFuzzerInitialize(int *argc, char ***argv) |
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18 { |
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19 return 0; |
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20 } |
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21 |
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22 int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) |
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23 { |
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24 FuzzedDataProvider provider(Data, Size); |
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25 std::string left = provider.ConsumeRandomLengthString(Size); |
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26 std::string right = provider.ConsumeRemainingBytesAsString(); |
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27 |
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28 struct bdiff_line *a, *b; |
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29 int an = bdiff_splitlines(left.c_str(), left.size(), &a); |
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30 int bn = bdiff_splitlines(right.c_str(), right.size(), &b); |
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31 struct bdiff_hunk l; |
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32 bdiff_diff(a, an, b, bn, &l); |
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33 free(a); |
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34 free(b); |
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35 bdiff_freehunks(l.next); |
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36 return 0; // Non-zero return values are reserved for future use. |
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37 } |
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38 |
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39 #ifdef HG_FUZZER_INCLUDE_MAIN |
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40 int main(int argc, char **argv) |
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41 { |
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42 const char data[] = "asdf"; |
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43 return LLVMFuzzerTestOneInput((const uint8_t *)data, 4); |
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44 } |
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45 #endif |
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46 |
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47 } // extern "C" |