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externals/zstd/tests/fuzz/fuzz.h

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+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ * All rights reserved.
+ *
+ * This source code is licensed under both the BSD-style license (found in the
+ * LICENSE file in the root directory of this source tree) and the GPLv2 (found
+ * in the COPYING file in the root directory of this source tree).
+ * You may select, at your option, one of the above-listed licenses.
+ */
+
+/**
+ * Fuzz target interface.
+ * Fuzz targets have some common parameters passed as macros during compilation.
+ * Check the documentation for each individual fuzzer for more parameters.
+ *
+ * @param STATEFUL_FUZZING:
+ *        Define this to reuse state between fuzzer runs. This can be useful to
+ *        test code paths which are only executed when contexts are reused.
+ *        WARNING: Makes reproducing crashes much harder.
+ *        Default: Not defined.
+ * @param DEBUGLEVEL:
+ *        This is a parameter for the zstd library. Defining `DEBUGLEVEL=1`
+ *        enables assert() statements in the zstd library. Higher levels enable
+ *        logging, so aren't recommended. Defining `DEBUGLEVEL=1` is
+ *        recommended.
+ * @param MEM_FORCE_MEMORY_ACCESS:
+ *        This flag controls how the zstd library accesses unaligned memory.
+ *        It can be undefined, or 0 through 2. If it is undefined, it selects
+ *        the method to use based on the compiler.
+ * @param FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
+ *        This is the canonical flag to enable deterministic builds for fuzzing.
+ *        Changes to zstd for fuzzing are gated behind this define.
+ *        It is recommended to define this when building zstd for fuzzing.
+ * @param FUZZ_THIRD_PARTY_SEQ_PROD
+ *        This flag allows sequence producer plugin authors to replace the built-in
+ *        default sequence producer with their own code. If you are not a plugin
+ *        author, you should not define this flag. See the docs at
+ *        fuzz_third_party_seq_prod.h for more information.
+ */
+
+#ifndef FUZZ_H
+#define FUZZ_H
+
+#include <stddef.h>
+#include <stdint.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+int LLVMFuzzerTestOneInput(const uint8_t *src, size_t size);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif