Mercurial > hg
annotate contrib/fuzz/fuzzutil.h @ 38173:fa0ddd5e8fff
fuzz: extract some common utilities and use modern C++ idioms
Alex Gaynor suggested we should probably copy the left and right sides
of diffs to new blocks so we can detect over-reads in the diffing
code, and I agree. Once I got into that, I realized we should do
things with C++17 idioms rather than keep using malloc() and
free(). This change is the result. I tried to split it more than this
and failed.
Everything still compiles and works in the oss-fuzz container, so I
think we can count on C++17 being available!
Differential Revision: https://phab.mercurial-scm.org/D3675
author | Augie Fackler <augie@google.com> |
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date | Sat, 28 Apr 2018 22:18:50 -0400 |
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children | 36d55f90e2a3 |
rev | line source |
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38173
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1 #ifndef CONTRIB_FUZZ_FUZZUTIL_H |
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2 #define CONTRIB_FUZZ_FUZZUTIL_H |
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3 #include <iostream> |
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4 #include <memory> |
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5 #include <optional> |
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6 #include <stdint.h> |
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7 |
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8 /* set DEBUG to 1 for a few debugging prints, or 2 for a lot */ |
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9 #define DEBUG 0 |
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10 #define LOG(level) \ |
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11 if (level <= DEBUG) \ |
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12 std::cout |
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13 |
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14 struct two_inputs { |
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15 std::unique_ptr<char[]> right; |
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16 size_t right_size; |
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17 std::unique_ptr<char[]> left; |
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18 size_t left_size; |
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19 }; |
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20 |
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21 /* Split a non-zero-length input into two inputs. */ |
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22 std::optional<two_inputs> SplitInputs(const uint8_t *Data, size_t Size); |
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23 |
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24 #endif /* CONTRIB_FUZZ_FUZZUTIL_H */ |