Mercurial > hg
view contrib/fuzz/fuzzutil.cc @ 41404:43f9b8c0574b
notify: be more defensive aboute None values
encoding.strtolocal is the identity function on Python 2
but an actual string manipulation routine on Python 3.
In some cases, we were passing None, which caused Python 3
to barf.
Let's change the code to react properly when the value is
None.
Differential Revision: https://phab.mercurial-scm.org/D5713
author | Gregory Szorc <gregory.szorc@gmail.com> |
---|---|
date | Sat, 26 Jan 2019 10:22:09 -0800 |
parents | a1c0873a9990 |
children |
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line source
#include "fuzzutil.h" #include <cstring> #include <utility> contrib::optional<two_inputs> SplitInputs(const uint8_t *Data, size_t Size) { if (!Size) { return contrib::nullopt; } // figure out a random point in [0, Size] to split our input. size_t left_size = (Data[0] / 255.0) * (Size - 1); // Copy inputs to new allocations so if bdiff over-reads // AddressSanitizer can detect it. std::unique_ptr<char[]> left(new char[left_size]); std::memcpy(left.get(), Data + 1, left_size); // right starts at the next byte after left ends size_t right_size = Size - (left_size + 1); std::unique_ptr<char[]> right(new char[right_size]); std::memcpy(right.get(), Data + 1 + left_size, right_size); LOG(2) << "inputs are " << left_size << " and " << right_size << " bytes" << std::endl; two_inputs result = {std::move(right), right_size, std::move(left), left_size}; return result; }