Add fuzzer to test lib
This commit is contained in:
Andreas Schiffler
parent
cf4a5b5570
commit
732f28216b
4 changed files with 1011 additions and 4 deletions
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@ -33,6 +33,7 @@
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#include "SDL.h"
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#include "SDL_test_font.h"
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#include "SDL_test_random.h"
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#include "SDL_test_fuzzer.h"
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#include "begin_code.h"
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/* Set up for C function definitions, even when using C++ */
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371
include/SDL_test_fuzzer.h
Normal file
371
include/SDL_test_fuzzer.h
Normal file
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@ -0,0 +1,371 @@
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/*
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Simple DirectMedia Layer
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Copyright (C) 1997-2012 Sam Lantinga <slouken@libsdl.org>
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not
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claim that you wrote the original software. If you use this software
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in a product, an acknowledgment in the product documentation would be
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appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be
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misrepresented as being the original software.
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3. This notice may not be removed or altered from any source distribution.
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*/
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/**
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* \file SDL_test_fuzzer.h
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*
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* Include file for SDL test framework.
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*
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* This code is a part of the SDL2_test library, not the main SDL library.
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*/
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/*
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Data generators for fuzzing test data in a reproducible way.
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*/
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#ifndef _SDL_test_fuzzer_h
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#define _SDL_test_fuzzer_h
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#include "begin_code.h"
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/* Set up for C function definitions, even when using C++ */
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#ifdef __cplusplus
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/* *INDENT-OFF* */
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extern "C" {
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/* *INDENT-ON* */
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#endif
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/*
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Based on GSOC code by Markus Kauppila <markus.kauppila@gmail.com>
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*/
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/**
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* \file
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* Note: The fuzzer implementation uses a static instance of random context
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* internally which makes it thread-UNsafe.
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*/
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/**
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* Initializes the fuzzer for a test
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*
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* /param execKey Execution "Key" that initializes the random number generator uniquely for the test.
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*
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*/
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void SDLTest_FuzzerInit(Uint64 execKey);
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/**
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* Returns a random Uint8
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*
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* \returns Generated integer
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*/
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Uint8 SDLTest_RandomUint8();
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/**
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* Returns a random Sint8
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*
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* \returns Generated signed integer
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*/
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Sint8 SDLTest_RandomSint8();
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/**
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* Returns a random Uint16
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*
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* \returns Generated integer
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*/
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Uint16 SDLTest_RandomUint16();
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/**
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* Returns a random Sint16
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*
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* \returns Generated signed integer
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*/
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Sint16 SDLTest_RandomSint16();
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/**
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* Returns a random integer
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*
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* \returns Generated integer
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*/
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Sint32 SDLTest_RandomSint32();
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/**
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* Returns a random positive integer
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*
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* \returns Generated integer
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*/
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Uint32 SDLTest_RandomUint32();
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/**
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* Returns random Uint64.
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*
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* \returns Generated integer
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*/
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Uint64 SDLTest_RandomUint64();
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/**
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* Returns random Sint64.
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*
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* \returns Generated signed integer
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*/
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Sint64 SDLTest_RandomSint64();
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/**
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* \returns random float in range [0.0 - 1.0[
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*/
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float SDLTest_RandomUnitFloat();
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/**
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* \returns random double in range [0.0 - 1.0[
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*/
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double SDLTest_RandomUnitDouble();
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/**
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* \returns random float.
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*
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*/
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float SDLTest_RandomFloat();
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/**
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* \returns random double.
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*
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*/
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double SDLTest_RandomDouble();
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/**
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* Returns a random boundary value for Uint8 within the given boundaries.
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* Boundaries are inclusive, see the usage examples below. If validDomain
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* is true, the function will only return valid boundaries, otherwise non-valid
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* boundaries are also possible.
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* If boundary1 > boundary2, the values are swapped
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*
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* Usage examples:
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* RandomUint8BoundaryValue(10, 20, SDL_TRUE) returns 10, 11, 19 or 20
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* RandomUint8BoundaryValue(1, 20, SDL_FALSE) returns 0 or 21
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* RandomUint8BoundaryValue(0, 99, SDL_FALSE) returns 100
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* RandomUint8BoundaryValue(0, 255, SDL_FALSE) returns -1 (== error value)
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*
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* \param boundary1 Lower boundary limit
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* \param boundary2 Upper boundary limit
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* \param validDomain Should the generated boundary be valid or not?
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*
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* \returns Boundary value in given range or error value (-1)
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*/
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Uint8 SDLTest_RandomUint8BoundaryValue(Uint8 boundary1, Uint8 boundary2, SDL_bool validDomain);
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/**
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* Returns a random boundary value for Uint16 within the given boundaries.
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* Boundaries are inclusive, see the usage examples below. If validDomain
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* is true, the function will only return valid boundaries, otherwise non-valid
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* boundaries are also possible.
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* If boundary1 > boundary2, the values are swapped
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*
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* Usage examples:
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* RandomUint16BoundaryValue(10, 20, SDL_TRUE) returns 10, 11, 19 or 20
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* RandomUint16BoundaryValue(1, 20, SDL_FALSE) returns 0 or 21
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* RandomUint16BoundaryValue(0, 99, SDL_FALSE) returns 100
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* RandomUint16BoundaryValue(0, 0xFFFF, SDL_FALSE) returns -1 (== error value)
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*
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* \param boundary1 Lower boundary limit
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* \param boundary2 Upper boundary limit
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* \param validDomain Should the generated boundary be valid or not?
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*
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* \returns Boundary value in given range or error value (-1)
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*/
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Uint16 SDLTest_RandomUint16BoundaryValue(Uint16 boundary1, Uint16 boundary2, SDL_bool validDomain);
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/**
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* Returns a random boundary value for Uint32 within the given boundaries.
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* Boundaries are inclusive, see the usage examples below. If validDomain
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* is true, the function will only return valid boundaries, otherwise non-valid
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* boundaries are also possible.
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* If boundary1 > boundary2, the values are swapped
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*
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* Usage examples:
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* RandomUint32BoundaryValue(10, 20, SDL_TRUE) returns 10, 11, 19 or 20
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* RandomUint32BoundaryValue(1, 20, SDL_FALSE) returns 0 or 21
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* RandomUint32BoundaryValue(0, 99, SDL_FALSE) returns 100
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* RandomUint32BoundaryValue(0, 0xFFFFFFFF, SDL_FALSE) returns -1 (== error value)
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*
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* \param boundary1 Lower boundary limit
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* \param boundary2 Upper boundary limit
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* \param validDomain Should the generated boundary be valid or not?
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*
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* \returns Boundary value in given range or error value (-1)
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*/
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Uint32 SDLTest_RandomUint32BoundaryValue(Uint32 boundary1, Uint32 boundary2, SDL_bool validDomain);
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/**
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* Returns a random boundary value for Uint64 within the given boundaries.
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* Boundaries are inclusive, see the usage examples below. If validDomain
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* is true, the function will only return valid boundaries, otherwise non-valid
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* boundaries are also possible.
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* If boundary1 > boundary2, the values are swapped
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*
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* Usage examples:
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* RandomUint64BoundaryValue(10, 20, SDL_TRUE) returns 10, 11, 19 or 20
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* RandomUint64BoundaryValue(1, 20, SDL_FALSE) returns 0 or 21
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* RandomUint64BoundaryValue(0, 99, SDL_FALSE) returns 100
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* RandomUint64BoundaryValue(0, 0xFFFFFFFFFFFFFFFF, SDL_FALSE) returns -1 (== error value)
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*
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* \param boundary1 Lower boundary limit
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* \param boundary2 Upper boundary limit
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* \param validDomain Should the generated boundary be valid or not?
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*
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* \returns Boundary value in given range or error value (-1)
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*/
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Uint64 SDLTest_RandomUint64BoundaryValue(Uint64 boundary1, Uint64 boundary2, SDL_bool validDomain);
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/**
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* Returns a random boundary value for Sint8 within the given boundaries.
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* Boundaries are inclusive, see the usage examples below. If validDomain
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* is true, the function will only return valid boundaries, otherwise non-valid
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* boundaries are also possible.
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* If boundary1 > boundary2, the values are swapped
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*
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* Usage examples:
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* RandomSint8BoundaryValue(-10, 20, SDL_TRUE) returns -11, -10, 19 or 20
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* RandomSint8BoundaryValue(-100, -10, SDL_FALSE) returns -101 or -9
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* RandomSint8BoundaryValue(-128, 99, SDL_FALSE) returns 100
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* RandomSint8BoundaryValue(-128, 127, SDL_FALSE) returns SINT8_MIN (== error value)
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*
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* \param boundary1 Lower boundary limit
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* \param boundary2 Upper boundary limit
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* \param validDomain Should the generated boundary be valid or not?
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*
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* \returns Boundary value in given range or error value (-1)
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*/
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Sint8 SDLTest_RandomSint8BoundaryValue(Sint8 boundary1, Sint8 boundary2, SDL_bool validDomain);
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/**
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* Returns a random boundary value for Sint16 within the given boundaries.
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* Boundaries are inclusive, see the usage examples below. If validDomain
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* is true, the function will only return valid boundaries, otherwise non-valid
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* boundaries are also possible.
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* If boundary1 > boundary2, the values are swapped
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*
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* Usage examples:
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* RandomSint16BoundaryValue(-10, 20, SDL_TRUE) returns -11, -10, 19 or 20
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* RandomSint16BoundaryValue(-100, -10, SDL_FALSE) returns -101 or -9
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* RandomSint16BoundaryValue(SINT8_MIN, 99, SDL_FALSE) returns 100
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* RandomSint16BoundaryValue(SINT8_MIN, SINT8_MAX, SDL_FALSE) returns SINT16_MIN (== error value)
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*
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* \param boundary1 Lower boundary limit
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* \param boundary2 Upper boundary limit
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* \param validDomain Should the generated boundary be valid or not?
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*
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* \returns Boundary value in given range or error value (-1)
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*/
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Sint16 SDLTest_RandomSint16BoundaryValue(Sint16 boundary1, Sint16 boundary2, SDL_bool validDomain);
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/**
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* Returns a random boundary value for Sint32 within the given boundaries.
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* Boundaries are inclusive, see the usage examples below. If validDomain
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* is true, the function will only return valid boundaries, otherwise non-valid
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* boundaries are also possible.
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* If boundary1 > boundary2, the values are swapped
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*
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* Usage examples:
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* RandomSint32BoundaryValue(-10, 20, SDL_TRUE) returns -11, -10, 19 or 20
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* RandomSint32BoundaryValue(-100, -10, SDL_FALSE) returns -101 or -9
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* RandomSint32BoundaryValue(SINT32_MIN, 99, SDL_FALSE) returns 100
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* RandomSint32BoundaryValue(SINT32_MIN, SINT32_MAX, SDL_FALSE) returns SINT32_MIN (== error value)
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*
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* \param boundary1 Lower boundary limit
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* \param boundary2 Upper boundary limit
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* \param validDomain Should the generated boundary be valid or not?
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*
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* \returns Boundary value in given range or error value (-1)
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*/
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Sint32 SDLTest_RandomSint32BoundaryValue(Sint32 boundary1, Sint32 boundary2, SDL_bool validDomain);
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/**
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* Returns a random boundary value for Sint64 within the given boundaries.
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* Boundaries are inclusive, see the usage examples below. If validDomain
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* is true, the function will only return valid boundaries, otherwise non-valid
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* boundaries are also possible.
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* If boundary1 > boundary2, the values are swapped
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*
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* Usage examples:
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* RandomSint64BoundaryValue(-10, 20, SDL_TRUE) returns -11, -10, 19 or 20
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* RandomSint64BoundaryValue(-100, -10, SDL_FALSE) returns -101 or -9
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* RandomSint64BoundaryValue(SINT64_MIN, 99, SDL_FALSE) returns 100
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* RandomSint64BoundaryValue(SINT64_MIN, SINT32_MAX, SDL_FALSE) returns SINT64_MIN (== error value)
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*
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* \param boundary1 Lower boundary limit
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* \param boundary2 Upper boundary limit
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* \param validDomain Should the generated boundary be valid or not?
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*
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* \returns Boundary value in given range or error value (-1)
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*/
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Sint64 SDLTest_RandomSint64BoundaryValue(Sint64 boundary1, Sint64 boundary2, SDL_bool validDomain);
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/**
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* Returns integer in range [min, max] (inclusive).
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* Min and max values can be negative values.
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* If Max in smaller tham min, then the values are swapped.
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* Min and max are the same value, that value will be returned.
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*
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* \returns Generated integer
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*/
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Sint32 SDLTest_RandomIntegerInRange(Sint32 min, Sint32 max);
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/**
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* Generates random null-terminated string. The maximum length for
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* the string is 255 characters and it can contain ASCII characters
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* from 1 to 127.
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*
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* Note: Returned string needs to be deallocated.
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*
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* \returns newly allocated random string
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*/
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char * SDLTest_RandomAsciiString();
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/**
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* Generates random null-terminated string. The maximum length for
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* the string is defined by maxLenght parameter.
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* String can contain ASCII characters from 1 to 127.
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*
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* Note: Returned string needs to be deallocated.
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*
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* \param maxLength Maximum length of the generated string
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*
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* \returns newly allocated random string
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*/
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char * SDLTest_RandomAsciiStringWithMaximumLength(int maxLength);
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/**
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* Returns the invocation count for the fuzzer since last ...FuzzerInit.
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*/
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int SDLTest_GetFuzzerInvocationCount();
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/* Ends C function definitions when using C++ */
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#ifdef __cplusplus
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/* *INDENT-OFF* */
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}
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/* *INDENT-ON* */
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#endif
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#include "close_code.h"
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#endif /* _SDL_test_fuzzer_h */
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/* vi: set ts=4 sw=4 expandtab: */
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@ -54,11 +54,9 @@ extern "C" {
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/* ------- Definitions ------- */
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/*
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* Macros that return random number in a specific format.
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* Float values are in the range [0.0-1.0].
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* Macros that return a random number in a specific format.
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*/
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#define SDL_TestRandomInt(c) ((int)SDL_TestRandom(c))
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#define SDL_TestRandomFloat(c) ((double)SDL_TestRandom(c)/(unsigned long)0xffffffff)
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#define SDLTest_RandomInt(c) ((int)SDLTest_Random(c))
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/*
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* Context structure for the random number generator state.
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637
src/test/SDL_test_fuzzer.c
Normal file
637
src/test/SDL_test_fuzzer.c
Normal file
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@ -0,0 +1,637 @@
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/*
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Simple DirectMedia Layer
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Copyright (C) 1997-2012 Sam Lantinga <slouken@libsdl.org>
|
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This software is provided 'as-is', without any express or implied
|
||||
warranty. In no event will the authors be held liable for any damages
|
||||
arising from the use of this software.
|
||||
|
||||
Permission is granted to anyone to use this software for any purpose,
|
||||
including commercial applications, and to alter it and redistribute it
|
||||
freely, subject to the following restrictions:
|
||||
|
||||
1. The origin of this software must not be misrepresented; you must not
|
||||
claim that you wrote the original software. If you use this software
|
||||
in a product, an acknowledgment in the product documentation would be
|
||||
appreciated but is not required.
|
||||
2. Altered source versions must be plainly marked as such, and must not be
|
||||
misrepresented as being the original software.
|
||||
3. This notice may not be removed or altered from any source distribution.
|
||||
*/
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/*
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Data generators for fuzzing test data in a reproducible way.
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*/
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#include "SDL_config.h"
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <limits.h>
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#include <float.h>
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#include "SDL_test.h"
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/**
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*Counter for fuzzer invocations
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*/
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static int fuzzerInvocationCounter;
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/**
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* Context for shared random number generator
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*/
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static SDLTest_RandomContext rndContext;
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/*
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* Note: doxygen documentation markup for functions is in the header file.
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*/
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void
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SDLTest_FuzzerInit(Uint64 execKey)
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{
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Uint32 a = (execKey >> 32) & 0x00000000FFFFFFFF;
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Uint32 b = execKey & 0x00000000FFFFFFFF;
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SDLTest_RandomInit(&rndContext, a, b);
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}
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int
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SDLTest_GetInvocationCount()
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{
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return fuzzerInvocationCounter;
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}
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Uint8
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SDLTest_RandomUint8()
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{
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fuzzerInvocationCounter++;
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return (Uint8) SDLTest_RandomInt(&rndContext) & 0x000000FF;
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}
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Sint8
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SDLTest_RandomSint8()
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{
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fuzzerInvocationCounter++;
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return (Sint8) SDLTest_RandomInt(&rndContext) & 0x000000FF;
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}
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Uint16
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SDLTest_RandomUint16()
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{
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fuzzerInvocationCounter++;
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return (Uint16) SDLTest_RandomInt(&rndContext) & 0x0000FFFF;
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}
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Sint16
|
||||
SDLTest_RandomSint16()
|
||||
{
|
||||
fuzzerInvocationCounter++;
|
||||
|
||||
return (Sint16) SDLTest_RandomInt(&rndContext) & 0x0000FFFF;
|
||||
}
|
||||
|
||||
Sint32
|
||||
SDLTest_RandomSint32()
|
||||
{
|
||||
fuzzerInvocationCounter++;
|
||||
|
||||
return (Sint32) SDLTest_RandomInt(&rndContext);
|
||||
}
|
||||
|
||||
Uint32
|
||||
SDLTest_RandomUint32()
|
||||
{
|
||||
fuzzerInvocationCounter++;
|
||||
|
||||
return (Uint32) SDLTest_RandomInt(&rndContext);
|
||||
}
|
||||
|
||||
Uint64
|
||||
SDLTest_RandomUint64()
|
||||
{
|
||||
Uint64 value;
|
||||
Uint32 *vp = (void*)&value;
|
||||
|
||||
fuzzerInvocationCounter++;
|
||||
|
||||
vp[0] = SDLTest_RandomSint32();
|
||||
vp[1] = SDLTest_RandomSint32();
|
||||
|
||||
return value;
|
||||
}
|
||||
|
||||
Sint64
|
||||
SDLTest_RandomSint64()
|
||||
{
|
||||
Uint64 value;
|
||||
Uint32 *vp = (void*)&value;
|
||||
|
||||
fuzzerInvocationCounter++;
|
||||
|
||||
vp[0] = SDLTest_RandomSint32();
|
||||
vp[1] = SDLTest_RandomSint32();
|
||||
|
||||
return value;
|
||||
}
|
||||
|
||||
|
||||
|
||||
Sint32
|
||||
SDLTest_RandomIntegerInRange(Sint32 pMin, Sint32 pMax)
|
||||
{
|
||||
Sint64 min = pMin;
|
||||
Sint64 max = pMax;
|
||||
Sint64 temp;
|
||||
Sint64 number;
|
||||
|
||||
if(pMin > pMax) {
|
||||
temp = min;
|
||||
min = max;
|
||||
max = temp;
|
||||
} else if(pMin == pMax) {
|
||||
return (Sint32)min;
|
||||
}
|
||||
|
||||
number = SDLTest_RandomUint32(); // invocation count increment in there
|
||||
|
||||
return (Sint32)((number % ((max + 1) - min)) + min);
|
||||
}
|
||||
|
||||
/*!
|
||||
* Generates boundary values between the given boundaries.
|
||||
* Boundary values are inclusive. See the examples below.
|
||||
* If boundary2 < boundary1, the values are swapped.
|
||||
* If boundary1 == boundary2, value of boundary1 will be returned
|
||||
*
|
||||
* Generating boundary values for Uint8:
|
||||
* BoundaryValues(sizeof(Uint8), 10, 20, True) -> [10,11,19,20]
|
||||
* BoundaryValues(sizeof(Uint8), 10, 20, False) -> [9,21]
|
||||
* BoundaryValues(sizeof(Uint8), 0, 15, True) -> [0, 1, 14, 15]
|
||||
* BoundaryValues(sizeof(Uint8), 0, 15, False) -> [16]
|
||||
* BoundaryValues(sizeof(Uint8), 0, 255, False) -> NULL
|
||||
*
|
||||
* Generator works the same for other types of unsigned integers.
|
||||
*
|
||||
* Note: outBuffer will be allocated and needs to be freed later.
|
||||
* If outbuffer != NULL, it'll be freed.
|
||||
*
|
||||
* \param maxValue The biggest value that is acceptable for this data type.
|
||||
* For instance, for Uint8 -> 255, Uint16 -> 65536 etc.
|
||||
* \param pBoundary1 defines lower boundary
|
||||
* \param pBoundary2 defines upper boundary
|
||||
* \param validDomain Generate only for valid domain (for the data type)
|
||||
*
|
||||
* \param outBuffer The generated boundary values are put here
|
||||
*
|
||||
* \returns Returns the number of elements in outBuffer or -1 in case of error
|
||||
*/
|
||||
Uint32
|
||||
SDLTest_GenerateUnsignedBoundaryValues(const Uint64 maxValue,
|
||||
Uint64 pBoundary1, Uint64 pBoundary2, SDL_bool validDomain,
|
||||
Uint64 *outBuffer)
|
||||
{
|
||||
Uint64 boundary1 = pBoundary1, boundary2 = pBoundary2;
|
||||
Uint64 temp;
|
||||
Uint64 tempBuf[4];
|
||||
int index;
|
||||
|
||||
if(outBuffer != NULL) {
|
||||
SDL_free(outBuffer);
|
||||
}
|
||||
|
||||
if(boundary1 > boundary2) {
|
||||
temp = boundary1;
|
||||
boundary1 = boundary2;
|
||||
boundary2 = temp;
|
||||
}
|
||||
|
||||
index = 0;
|
||||
if(boundary1 == boundary2) {
|
||||
tempBuf[index++] = boundary1;
|
||||
}
|
||||
else if(validDomain) {
|
||||
tempBuf[index++] = boundary1;
|
||||
|
||||
if(boundary1 < UINT64_MAX)
|
||||
tempBuf[index++] = boundary1 + 1;
|
||||
|
||||
tempBuf[index++] = boundary2 - 1;
|
||||
tempBuf[index++] = boundary2;
|
||||
}
|
||||
else {
|
||||
if(boundary1 > 0) {
|
||||
tempBuf[index++] = boundary1 - 1;
|
||||
}
|
||||
|
||||
if(boundary2 < maxValue && boundary2 < UINT64_MAX) {
|
||||
tempBuf[index++] = boundary2 + 1;
|
||||
}
|
||||
}
|
||||
|
||||
if(index == 0) {
|
||||
// There are no valid boundaries
|
||||
return 0;
|
||||
}
|
||||
|
||||
// Create the return buffer
|
||||
outBuffer = (Uint64 *)SDL_malloc(index * sizeof(Uint64));
|
||||
if(outBuffer == NULL) {
|
||||
return 0;
|
||||
}
|
||||
|
||||
SDL_memcpy(outBuffer, tempBuf, index * sizeof(Uint64));
|
||||
|
||||
return index;
|
||||
}
|
||||
|
||||
Uint8
|
||||
SDLTest_RandomUint8BoundaryValue(Uint8 boundary1, Uint8 boundary2, SDL_bool validDomain)
|
||||
{
|
||||
Uint64 *buffer = NULL;
|
||||
Uint32 size;
|
||||
Uint32 index;
|
||||
Uint8 retVal;
|
||||
|
||||
// max value for Uint8
|
||||
const Uint64 maxValue = UINT8_MAX;
|
||||
|
||||
size = SDLTest_GenerateUnsignedBoundaryValues(maxValue,
|
||||
(Uint64) boundary1, (Uint64) boundary2,
|
||||
validDomain, buffer);
|
||||
if (size == 0) {
|
||||
return 0;
|
||||
}
|
||||
|
||||
index = SDLTest_RandomSint32() % size;
|
||||
retVal = (Uint8)buffer[index];
|
||||
|
||||
SDL_free(buffer);
|
||||
|
||||
fuzzerInvocationCounter++;
|
||||
|
||||
return retVal;
|
||||
}
|
||||
|
||||
Uint16
|
||||
SDLTest_RandomUint16BoundaryValue(Uint16 boundary1, Uint16 boundary2, SDL_bool validDomain)
|
||||
{
|
||||
Uint64 *buffer = NULL;
|
||||
Uint32 size;
|
||||
Uint32 index;
|
||||
Uint16 retVal;
|
||||
|
||||
// max value for Uint16
|
||||
const Uint64 maxValue = UINT16_MAX;
|
||||
|
||||
size = SDLTest_GenerateUnsignedBoundaryValues(maxValue,
|
||||
(Uint64) boundary1, (Uint64) boundary2,
|
||||
validDomain, buffer);
|
||||
if(size == 0) {
|
||||
return 0;
|
||||
}
|
||||
|
||||
index = SDLTest_RandomSint32() % size;
|
||||
retVal = (Uint16) buffer[index];
|
||||
|
||||
SDL_free(buffer);
|
||||
|
||||
fuzzerInvocationCounter++;
|
||||
|
||||
return retVal;
|
||||
}
|
||||
|
||||
Uint32
|
||||
SDLTest_RandomUint32BoundaryValue(Uint32 boundary1, Uint32 boundary2, SDL_bool validDomain)
|
||||
{
|
||||
Uint64 *buffer = NULL;
|
||||
Uint32 size;
|
||||
Uint32 index;
|
||||
Uint32 retVal;
|
||||
|
||||
// max value for Uint32
|
||||
const Uint64 maxValue = UINT32_MAX;
|
||||
|
||||
size = SDLTest_GenerateUnsignedBoundaryValues(maxValue,
|
||||
(Uint64) boundary1, (Uint64) boundary2,
|
||||
validDomain, buffer);
|
||||
if(size == 0) {
|
||||
return 0;
|
||||
}
|
||||
|
||||
index = SDLTest_RandomSint32() % size;
|
||||
retVal = (Uint32) buffer[index];
|
||||
|
||||
SDL_free(buffer);
|
||||
|
||||
fuzzerInvocationCounter++;
|
||||
|
||||
return retVal;
|
||||
}
|
||||
|
||||
Uint64
|
||||
SDLTest_RandomUint64BoundaryValue(Uint64 boundary1, Uint64 boundary2, SDL_bool validDomain)
|
||||
{
|
||||
Uint64 *buffer = NULL;
|
||||
Uint32 size;
|
||||
Uint32 index;
|
||||
Uint64 retVal;
|
||||
|
||||
// max value for Uint64
|
||||
const Uint64 maxValue = UINT64_MAX;
|
||||
|
||||
size = SDLTest_GenerateUnsignedBoundaryValues(maxValue,
|
||||
(Uint64) boundary1, (Uint64) boundary2,
|
||||
validDomain, buffer);
|
||||
if(size == 0) {
|
||||
return 0;
|
||||
}
|
||||
|
||||
index = SDLTest_RandomSint32() % size;
|
||||
retVal = (Uint64) buffer[index];
|
||||
|
||||
SDL_free(buffer);
|
||||
|
||||
fuzzerInvocationCounter++;
|
||||
|
||||
return retVal;
|
||||
}
|
||||
|
||||
/*!
|
||||
* Generates boundary values between the given boundaries.
|
||||
* Boundary values are inclusive. See the examples below.
|
||||
* If boundary2 < boundary1, the values are swapped.
|
||||
* If boundary1 == boundary2, value of boundary1 will be returned
|
||||
*
|
||||
* Generating boundary values for Sint8:
|
||||
* SignedBoundaryValues(sizeof(Sint8), -10, 20, True) -> [-11,-10,19,20]
|
||||
* SignedBoundaryValues(sizeof(Sint8), -10, 20, False) -> [-11,21]
|
||||
* SignedBoundaryValues(sizeof(Sint8), -30, -15, True) -> [-30, -29, -16, -15]
|
||||
* SignedBoundaryValues(sizeof(Sint8), -128, 15, False) -> [16]
|
||||
* SignedBoundaryValues(sizeof(Sint8), -128, 127, False) -> NULL
|
||||
*
|
||||
* Generator works the same for other types of signed integers.
|
||||
*
|
||||
* Note: outBuffer will be allocated and needs to be freed later.
|
||||
* If outbuffer != NULL, it'll be freed.
|
||||
*
|
||||
*
|
||||
* \param minValue The smallest value that is acceptable for this data type.
|
||||
* For instance, for Uint8 -> -128, Uint16 -> -32,768 etc.
|
||||
* \param maxValue The biggest value that is acceptable for this data type.
|
||||
* For instance, for Uint8 -> 127, Uint16 -> 32767 etc.
|
||||
* \param pBoundary1 defines lower boundary
|
||||
* \param pBoundary2 defines upper boundary
|
||||
* \param validDomain Generate only for valid domain (for the data type)
|
||||
*
|
||||
* \param outBuffer The generated boundary values are put here
|
||||
*
|
||||
* \returns Returns the number of elements in outBuffer or -1 in case of error
|
||||
*/
|
||||
Uint32
|
||||
SDLTest_GenerateSignedBoundaryValues(const Sint64 minValue, const Sint64 maxValue,
|
||||
Sint64 pBoundary1, Sint64 pBoundary2, SDL_bool validDomain,
|
||||
Sint64 *outBuffer)
|
||||
{
|
||||
int index;
|
||||
Sint64 tempBuf[4];
|
||||
Sint64 boundary1 = pBoundary1, boundary2 = pBoundary2;
|
||||
|
||||
if(outBuffer != NULL) {
|
||||
SDL_free(outBuffer);
|
||||
}
|
||||
|
||||
if(boundary1 > boundary2) {
|
||||
Sint64 temp = boundary1;
|
||||
boundary1 = boundary2;
|
||||
boundary2 = temp;
|
||||
}
|
||||
|
||||
index = 0;
|
||||
if(boundary1 == boundary2) {
|
||||
tempBuf[index++] = boundary1;
|
||||
}
|
||||
else if(validDomain) {
|
||||
tempBuf[index++] = boundary1;
|
||||
|
||||
if(boundary1 < LLONG_MAX)
|
||||
tempBuf[index++] = boundary1 + 1;
|
||||
|
||||
if(boundary2 > LLONG_MIN)
|
||||
tempBuf[index++] = boundary2 - 1;
|
||||
|
||||
tempBuf[index++] = boundary2;
|
||||
}
|
||||
else {
|
||||
if(boundary1 > minValue && boundary1 > LLONG_MIN) {
|
||||
tempBuf[index++] = boundary1 - 1;
|
||||
}
|
||||
|
||||
if(boundary2 < maxValue && boundary2 < UINT64_MAX) {
|
||||
tempBuf[index++] = boundary2 + 1;
|
||||
}
|
||||
}
|
||||
|
||||
if(index == 0) {
|
||||
// There are no valid boundaries
|
||||
return 0;
|
||||
}
|
||||
|
||||
// Create the return buffer
|
||||
outBuffer = (Sint64 *)SDL_malloc(index * sizeof(Sint64));
|
||||
if(outBuffer == NULL) {
|
||||
return 0;
|
||||
}
|
||||
|
||||
SDL_memcpy((void *)outBuffer, (void *)tempBuf, index * sizeof(Sint64));
|
||||
|
||||
return (Uint32)index;
|
||||
}
|
||||
|
||||
Sint8
|
||||
SDLTest_RandomSint8BoundaryValue(Sint8 boundary1, Sint8 boundary2, SDL_bool validDomain)
|
||||
{
|
||||
// min & max values for Sint8
|
||||
const Sint64 maxValue = CHAR_MAX;
|
||||
const Sint64 minValue = CHAR_MIN;
|
||||
|
||||
Sint64 *buffer = NULL;
|
||||
Uint32 size;
|
||||
Uint32 index;
|
||||
Sint8 retVal;
|
||||
|
||||
size = SDLTest_GenerateSignedBoundaryValues(minValue, maxValue,
|
||||
(Sint64) boundary1, (Sint64) boundary2,
|
||||
validDomain, buffer);
|
||||
if(size == 0) {
|
||||
return CHAR_MIN;
|
||||
}
|
||||
|
||||
index = SDLTest_RandomSint32() % size;
|
||||
retVal = (Sint8) buffer[index];
|
||||
|
||||
SDL_free(buffer);
|
||||
|
||||
fuzzerInvocationCounter++;
|
||||
|
||||
return retVal;
|
||||
}
|
||||
|
||||
Sint16
|
||||
SDLTest_RandomSint16BoundaryValue(Sint16 boundary1, Sint16 boundary2, SDL_bool validDomain)
|
||||
{
|
||||
// min & max values for Sint16
|
||||
const Sint64 maxValue = SHRT_MAX;
|
||||
const Sint64 minValue = SHRT_MIN;
|
||||
Sint64 *buffer = NULL;
|
||||
Uint32 size;
|
||||
Uint32 index;
|
||||
Sint16 retVal;
|
||||
|
||||
size = SDLTest_GenerateSignedBoundaryValues(minValue, maxValue,
|
||||
(Sint64) boundary1, (Sint64) boundary2,
|
||||
validDomain, buffer);
|
||||
if(size == 0) {
|
||||
return SHRT_MIN;
|
||||
}
|
||||
|
||||
index = SDLTest_RandomSint32() % size;
|
||||
retVal = (Sint16) buffer[index];
|
||||
|
||||
SDL_free(buffer);
|
||||
|
||||
fuzzerInvocationCounter++;
|
||||
|
||||
return retVal;
|
||||
}
|
||||
|
||||
Sint32
|
||||
SDLTest_RandomSint32BoundaryValue(Sint32 boundary1, Sint32 boundary2, SDL_bool validDomain)
|
||||
{
|
||||
// min & max values for Sint32
|
||||
const Sint64 maxValue = INT_MAX;
|
||||
const Sint64 minValue = INT_MIN;
|
||||
|
||||
Sint64 *buffer = NULL;
|
||||
Uint32 size;
|
||||
Uint32 index;
|
||||
Sint32 retVal;
|
||||
|
||||
size = SDLTest_GenerateSignedBoundaryValues(minValue, maxValue,
|
||||
(Sint64) boundary1, (Sint64) boundary2,
|
||||
validDomain, buffer);
|
||||
if(size == 0) {
|
||||
return INT_MIN;
|
||||
}
|
||||
|
||||
index = SDLTest_RandomSint32() % size;
|
||||
retVal = (Sint32) buffer[index];
|
||||
|
||||
SDL_free(buffer);
|
||||
|
||||
fuzzerInvocationCounter++;
|
||||
|
||||
return retVal;
|
||||
}
|
||||
|
||||
Sint64
|
||||
SDLTest_RandomSint64BoundaryValue(Sint64 boundary1, Sint64 boundary2, SDL_bool validDomain)
|
||||
{
|
||||
Sint64 *buffer = NULL;
|
||||
Uint32 size;
|
||||
Uint32 index;
|
||||
Sint64 retVal;
|
||||
|
||||
// min & max values for Sint64
|
||||
const Sint64 maxValue = LLONG_MAX;
|
||||
const Sint64 minValue = LLONG_MIN;
|
||||
|
||||
size = SDLTest_GenerateSignedBoundaryValues(minValue, maxValue,
|
||||
(Sint64) boundary1, (Sint64) boundary2,
|
||||
validDomain, buffer);
|
||||
if(size == 0) {
|
||||
return LLONG_MIN;
|
||||
}
|
||||
|
||||
index = SDLTest_RandomSint32() % size;
|
||||
retVal = (Sint64) buffer[index];
|
||||
|
||||
SDL_free(buffer);
|
||||
|
||||
fuzzerInvocationCounter++;
|
||||
|
||||
return retVal;
|
||||
}
|
||||
|
||||
float
|
||||
SDLTest_RandomUnitFloat()
|
||||
{
|
||||
return (float) SDLTest_RandomUint32() / UINT_MAX;
|
||||
}
|
||||
|
||||
float
|
||||
SDLTest_RandomFloat()
|
||||
{
|
||||
return (float) (FLT_MIN + SDLTest_RandomUnitDouble() * (FLT_MAX - FLT_MIN));
|
||||
}
|
||||
|
||||
double
|
||||
SDLTest_RandomUnitDouble()
|
||||
{
|
||||
return (double) (SDLTest_RandomUint64() >> 11) * (1.0/9007199254740992.0);
|
||||
}
|
||||
|
||||
double
|
||||
SDLTest_RandomDouble()
|
||||
{
|
||||
double r = 0.0;
|
||||
double s = 1.0;
|
||||
do {
|
||||
s /= UINT_MAX + 1.0;
|
||||
r += (double)SDLTest_RandomInt(&rndContext) * s;
|
||||
} while (s > DBL_EPSILON);
|
||||
|
||||
fuzzerInvocationCounter++;
|
||||
|
||||
return r;
|
||||
}
|
||||
|
||||
|
||||
char *
|
||||
SDLTest_RandomAsciiString()
|
||||
{
|
||||
// note: fuzzerInvocationCounter is increment in the RandomAsciiStringWithMaximumLenght
|
||||
return SDLTest_RandomAsciiStringWithMaximumLength(255);
|
||||
}
|
||||
|
||||
char *
|
||||
SDLTest_RandomAsciiStringWithMaximumLength(int maxSize)
|
||||
{
|
||||
int size;
|
||||
char *string;
|
||||
int counter;
|
||||
|
||||
fuzzerInvocationCounter++;
|
||||
|
||||
if(maxSize < 1) {
|
||||
return NULL;
|
||||
}
|
||||
|
||||
size = (SDLTest_RandomUint32() % (maxSize + 1)) + 1;
|
||||
string = (char *)SDL_malloc(size * sizeof(char));
|
||||
if (string==NULL) {
|
||||
return NULL;
|
||||
}
|
||||
|
||||
for(counter = 0; counter < size; ++counter) {
|
||||
string[counter] = (char)SDLTest_RandomIntegerInRange(1, 127);
|
||||
}
|
||||
|
||||
string[counter] = '\0';
|
||||
|
||||
return string;
|
||||
}
|
||||
Loading…
Add table
Add a link
Reference in a new issue