forked from osmocom/wireshark
149 lines
6.0 KiB
C
149 lines
6.0 KiB
C
/** @file */
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/* based on http://llvm.org/svn/llvm-project/compiler-rt/trunk/lib/fuzzer/FuzzerInterface.h r321218 (20 Dec 2017) */
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/* http://llvm.org/svn/llvm-project/compiler-rt/trunk/LICENSE.TXT follows */
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/*
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==============================================================================
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compiler_rt License
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==============================================================================
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The compiler_rt library is dual licensed under both the University of Illinois
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"BSD-Like" license and the MIT license. As a user of this code you may choose
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to use it under either license. As a contributor, you agree to allow your code
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to be used under both.
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Full text of the relevant licenses is included below.
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==============================================================================
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University of Illinois/NCSA
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Open Source License
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Copyright (c) 2009-2016 by the contributors listed in CREDITS.TXT
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All rights reserved.
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Developed by:
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LLVM Team
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University of Illinois at Urbana-Champaign
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http://llvm.org
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Permission is hereby granted, free of charge, to any person obtaining a copy of
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this software and associated documentation files (the "Software"), to deal with
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the Software without restriction, including without limitation the rights to
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use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
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of the Software, and to permit persons to whom the Software is furnished to do
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so, subject to the following conditions:
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* Redistributions of source code must retain the above copyright notice,
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this list of conditions and the following disclaimers.
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* Redistributions in binary form must reproduce the above copyright notice,
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this list of conditions and the following disclaimers in the
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documentation and/or other materials provided with the distribution.
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* Neither the names of the LLVM Team, University of Illinois at
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Urbana-Champaign, nor the names of its contributors may be used to
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endorse or promote products derived from this Software without specific
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prior written permission.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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CONTRIBUTORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS WITH THE
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SOFTWARE.
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==============================================================================
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Copyright (c) 2009-2015 by the contributors listed in CREDITS.TXT
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SPDX-License-Identifier: MIT
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==============================================================================
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Copyrights and Licenses for Third Party Software Distributed with LLVM:
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==============================================================================
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The LLVM software contains code written by third parties. Such software will
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have its own individual LICENSE.TXT file in the directory in which it appears.
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This file will describe the copyrights, license, and restrictions which apply
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to that code.
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The disclaimer of warranty in the University of Illinois Open Source License
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applies to all code in the LLVM Distribution, and nothing in any of the
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other licenses gives permission to use the names of the LLVM Team or the
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University of Illinois to endorse or promote products derived from this
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Software.
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*/
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//===- FuzzerInterface.h - Interface header for the Fuzzer ------*- C++ -* ===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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// Define the interface between libFuzzer and the library being tested.
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//===----------------------------------------------------------------------===//
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// NOTE: the libFuzzer interface is thin and in the majority of cases
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// you should not include this file into your target. In 95% of cases
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// all you need is to define the following function in your file:
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// extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size);
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// WARNING: keep the interface in C.
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#ifndef LLVM_FUZZER_INTERFACE_H
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#define LLVM_FUZZER_INTERFACE_H
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#include <stddef.h>
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#include <stdint.h>
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#ifdef __cplusplus
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extern "C" {
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#endif // __cplusplus
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// Mandatory user-provided target function.
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// Executes the code under test with [Data, Data+Size) as the input.
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// libFuzzer will invoke this function *many* times with different inputs.
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// Must return 0.
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int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size);
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// Optional user-provided initialization function.
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// If provided, this function will be called by libFuzzer once at startup.
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// It may read and modify argc/argv.
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// Must return 0.
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int LLVMFuzzerInitialize(int *argc, char ***argv);
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// Optional user-provided custom mutator.
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// Mutates raw data in [Data, Data+Size) inplace.
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// Returns the new size, which is not greater than MaxSize.
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// Given the same Seed produces the same mutation.
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size_t LLVMFuzzerCustomMutator(uint8_t *Data, size_t Size, size_t MaxSize,
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unsigned int Seed);
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// Optional user-provided custom cross-over function.
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// Combines pieces of Data1 & Data2 together into Out.
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// Returns the new size, which is not greater than MaxOutSize.
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// Should produce the same mutation given the same Seed.
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size_t LLVMFuzzerCustomCrossOver(const uint8_t *Data1, size_t Size1,
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const uint8_t *Data2, size_t Size2,
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uint8_t *Out, size_t MaxOutSize,
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unsigned int Seed);
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// Experimental, may go away in future.
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// libFuzzer-provided function to be used inside LLVMFuzzerCustomMutator.
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// Mutates raw data in [Data, Data+Size) inplace.
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// Returns the new size, which is not greater than MaxSize.
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size_t LLVMFuzzerMutate(uint8_t *Data, size_t Size, size_t MaxSize);
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#ifdef __cplusplus
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} // extern "C"
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#endif // __cplusplus
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#endif // LLVM_FUZZER_INTERFACE_H
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