upstream/mercurial-mirror Files · contrib/fuzz/fuzzutil.cc

hg: raise Abort on invalid path...

hg: raise Abort on invalid path Currently, some os.path functions when opening repositories may raise an uncaught TypeError or ValueError if the path is invalid. Let's catch these exceptions and turn them into an Abort for convenience. Differential Revision: https://phab.mercurial-scm.org/D5772

Yuya Nishihara - - Load All Authors

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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;

      }

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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;
				}