/*

 * bdiff.cc - fuzzer harness for bdiff.c

 *

 * Copyright 2018, Google Inc.

 *

 * This software may be used and distributed according to the terms of

 * the GNU General Public License, incorporated herein by reference.

 */

#include <memory>

#include <stdlib.h>

#include <fuzzer/FuzzedDataProvider.h>

extern "C" {

#include "bdiff.h"

int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size)

{

	FuzzedDataProvider provider(Data, Size);

	std::string left = provider.ConsumeRandomLengthString(Size);

	std::string right = provider.ConsumeRemainingBytesAsString();

	struct bdiff_line *a, *b;

	int an = bdiff_splitlines(left.c_str(), left.size(), &a);

	int bn = bdiff_splitlines(right.c_str(), right.size(), &b);

	struct bdiff_hunk l;

	bdiff_diff(a, an, b, bn, &l);

	free(a);

	free(b);

	bdiff_freehunks(l.next);

	return 0; // Non-zero return values are reserved for future use.

}

#ifdef HG_FUZZER_INCLUDE_MAIN

int main(int argc, char **argv)

{

	const char data[] = "asdf";

	return LLVMFuzzerTestOneInput((const uint8_t *)data, 4);

}

#endif

} // extern "C"