Mercurial > hg
view contrib/fuzz/fuzzutil.cc @ 40084:2cf18f46a1ce
narrow: only walk files within narrowspec also for committed revisions
Narrow has been walking only paths matching the narrowspec when
walking the working copy. We have not done the same filtering when
walking committed revisions (e.g. "hg files -r "), which seems a
little odd. Let's make it consistent.
Differential Revision: https://phab.mercurial-scm.org/D4898
author | Martin von Zweigbergk <martinvonz@google.com> |
---|---|
date | Fri, 28 Sep 2018 17:09:15 -0700 |
parents | a1c0873a9990 |
children |
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#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; }