1040 lines
47 KiB
C
1040 lines
47 KiB
C
/**
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* Copyright (c) 2016-present, Yann Collet, Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD-style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*/
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/*-************************************
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* Compiler specific
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**************************************/
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#ifdef _MSC_VER /* Visual Studio */
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# define _CRT_SECURE_NO_WARNINGS /* fgets */
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# pragma warning(disable : 4127) /* disable: C4127: conditional expression is constant */
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# pragma warning(disable : 4204) /* disable: C4204: non-constant aggregate initializer */
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#endif
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/*-************************************
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* Includes
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**************************************/
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#include <stdlib.h> /* free */
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#include <stdio.h> /* fgets, sscanf */
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#include <string.h> /* strcmp */
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#include <time.h> /* clock_t */
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#define ZSTD_STATIC_LINKING_ONLY /* ZSTD_compressContinue, ZSTD_compressBlock */
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#include "zstd.h" /* ZSTD_VERSION_STRING */
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#include "zstd_errors.h" /* ZSTD_getErrorCode */
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#define ZDICT_STATIC_LINKING_ONLY
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#include "zdict.h" /* ZDICT_trainFromBuffer */
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#include "datagen.h" /* RDG_genBuffer */
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#include "mem.h"
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#define XXH_STATIC_LINKING_ONLY
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#include "xxhash.h" /* XXH64 */
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/*-************************************
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* Constants
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**************************************/
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#define KB *(1U<<10)
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#define MB *(1U<<20)
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#define GB *(1U<<30)
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static const U32 FUZ_compressibility_default = 50;
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static const U32 nbTestsDefault = 30000;
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/*-************************************
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* Display Macros
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**************************************/
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#define DISPLAY(...) fprintf(stderr, __VA_ARGS__)
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#define DISPLAYLEVEL(l, ...) if (g_displayLevel>=l) { DISPLAY(__VA_ARGS__); }
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static U32 g_displayLevel = 2;
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#define DISPLAYUPDATE(l, ...) if (g_displayLevel>=l) { \
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if ((FUZ_clockSpan(g_displayClock) > g_refreshRate) || (g_displayLevel>=4)) \
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{ g_displayClock = clock(); DISPLAY(__VA_ARGS__); \
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if (g_displayLevel>=4) fflush(stdout); } }
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static const clock_t g_refreshRate = CLOCKS_PER_SEC / 6;
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static clock_t g_displayClock = 0;
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/*-*******************************************************
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* Fuzzer functions
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*********************************************************/
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#define MIN(a,b) ((a)<(b)?(a):(b))
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static clock_t FUZ_clockSpan(clock_t cStart)
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{
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return clock() - cStart; /* works even when overflow; max span ~ 30mn */
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}
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#define FUZ_rotl32(x,r) ((x << r) | (x >> (32 - r)))
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static unsigned FUZ_rand(unsigned* src)
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{
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static const U32 prime1 = 2654435761U;
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static const U32 prime2 = 2246822519U;
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U32 rand32 = *src;
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rand32 *= prime1;
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rand32 += prime2;
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rand32 = FUZ_rotl32(rand32, 13);
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*src = rand32;
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return rand32 >> 5;
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}
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static unsigned FUZ_highbit32(U32 v32)
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{
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unsigned nbBits = 0;
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if (v32==0) return 0;
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while (v32) v32 >>= 1, nbBits++;
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return nbBits;
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}
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/*=============================================
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* Basic Unit tests
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=============================================*/
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#define CHECK_V(var, fn) size_t const var = fn; if (ZSTD_isError(var)) goto _output_error
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#define CHECK(fn) { CHECK_V(err, fn); }
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#define CHECKPLUS(var, fn, more) { CHECK_V(var, fn); more; }
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static int basicUnitTests(U32 seed, double compressibility)
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{
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size_t const CNBuffSize = 5 MB;
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void* const CNBuffer = malloc(CNBuffSize);
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void* const compressedBuffer = malloc(ZSTD_compressBound(CNBuffSize));
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void* const decodedBuffer = malloc(CNBuffSize);
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ZSTD_DCtx* dctx = ZSTD_createDCtx();
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int testResult = 0;
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U32 testNb=0;
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size_t cSize;
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/* Create compressible noise */
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if (!CNBuffer || !compressedBuffer || !decodedBuffer) {
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DISPLAY("Not enough memory, aborting\n");
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testResult = 1;
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goto _end;
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}
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RDG_genBuffer(CNBuffer, CNBuffSize, compressibility, 0., seed);
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/* Basic tests */
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DISPLAYLEVEL(4, "test%3i : ZSTD_getErrorName : ", testNb++);
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{ const char* errorString = ZSTD_getErrorName(0);
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DISPLAYLEVEL(4, "OK : %s \n", errorString);
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}
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DISPLAYLEVEL(4, "test%3i : ZSTD_getErrorName with wrong value : ", testNb++);
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{ const char* errorString = ZSTD_getErrorName(499);
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DISPLAYLEVEL(4, "OK : %s \n", errorString);
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}
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DISPLAYLEVEL(4, "test%3i : compress %u bytes : ", testNb++, (U32)CNBuffSize);
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CHECKPLUS(r, ZSTD_compress(compressedBuffer, ZSTD_compressBound(CNBuffSize),
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CNBuffer, CNBuffSize, 1),
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cSize=r );
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DISPLAYLEVEL(4, "OK (%u bytes : %.2f%%)\n", (U32)cSize, (double)cSize/CNBuffSize*100);
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DISPLAYLEVEL(4, "test%3i : decompressed size test : ", testNb++);
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{ unsigned long long const rSize = ZSTD_findDecompressedSize(compressedBuffer, cSize);
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if (rSize != CNBuffSize) goto _output_error;
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}
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DISPLAYLEVEL(4, "OK \n");
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DISPLAYLEVEL(4, "test%3i : decompress %u bytes : ", testNb++, (U32)CNBuffSize);
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{ size_t const r = ZSTD_decompress(decodedBuffer, CNBuffSize, compressedBuffer, cSize);
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if (r != CNBuffSize) goto _output_error; }
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DISPLAYLEVEL(4, "OK \n");
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DISPLAYLEVEL(4, "test%3i : check decompressed result : ", testNb++);
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{ size_t u;
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for (u=0; u<CNBuffSize; u++) {
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if (((BYTE*)decodedBuffer)[u] != ((BYTE*)CNBuffer)[u]) goto _output_error;;
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} }
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DISPLAYLEVEL(4, "OK \n");
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DISPLAYLEVEL(4, "test%3i : decompress with null dict : ", testNb++);
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{ size_t const r = ZSTD_decompress_usingDict(dctx, decodedBuffer, CNBuffSize, compressedBuffer, cSize, NULL, 0);
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if (r != CNBuffSize) goto _output_error; }
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DISPLAYLEVEL(4, "OK \n");
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DISPLAYLEVEL(4, "test%3i : decompress with null DDict : ", testNb++);
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{ size_t const r = ZSTD_decompress_usingDDict(dctx, decodedBuffer, CNBuffSize, compressedBuffer, cSize, NULL);
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if (r != CNBuffSize) goto _output_error; }
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DISPLAYLEVEL(4, "OK \n");
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DISPLAYLEVEL(4, "test%3i : decompress with 1 missing byte : ", testNb++);
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{ size_t const r = ZSTD_decompress(decodedBuffer, CNBuffSize, compressedBuffer, cSize-1);
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if (!ZSTD_isError(r)) goto _output_error;
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if (ZSTD_getErrorCode((size_t)r) != ZSTD_error_srcSize_wrong) goto _output_error; }
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DISPLAYLEVEL(4, "OK \n");
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DISPLAYLEVEL(4, "test%3i : decompress with 1 too much byte : ", testNb++);
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{ size_t const r = ZSTD_decompress(decodedBuffer, CNBuffSize, compressedBuffer, cSize+1);
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if (!ZSTD_isError(r)) goto _output_error;
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if (ZSTD_getErrorCode(r) != ZSTD_error_srcSize_wrong) goto _output_error; }
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DISPLAYLEVEL(4, "OK \n");
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/* Simple API multiframe test */
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DISPLAYLEVEL(4, "test%3i : compress multiple frames : ", testNb++);
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{ size_t off = 0;
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int i;
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int const segs = 4;
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/* only use the first half so we don't push against size limit of compressedBuffer */
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size_t const segSize = (CNBuffSize / 2) / segs;
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for (i = 0; i < segs; i++) {
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CHECK_V(r,
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ZSTD_compress(
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(BYTE *)compressedBuffer + off, CNBuffSize - off,
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(BYTE *)CNBuffer + segSize * i,
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segSize, 5));
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off += r;
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if (i == segs/2) {
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/* insert skippable frame */
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const U32 skipLen = 128 KB;
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MEM_writeLE32((BYTE*)compressedBuffer + off, ZSTD_MAGIC_SKIPPABLE_START);
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MEM_writeLE32((BYTE*)compressedBuffer + off + 4, skipLen);
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off += skipLen + ZSTD_skippableHeaderSize;
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}
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}
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cSize = off;
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}
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DISPLAYLEVEL(4, "OK \n");
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DISPLAYLEVEL(4, "test%3i : get decompressed size of multiple frames : ", testNb++);
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{ unsigned long long const r = ZSTD_findDecompressedSize(compressedBuffer, cSize);
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if (r != CNBuffSize / 2) goto _output_error; }
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DISPLAYLEVEL(4, "OK \n");
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DISPLAYLEVEL(4, "test%3i : decompress multiple frames : ", testNb++);
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{ CHECK_V(r, ZSTD_decompress(decodedBuffer, CNBuffSize, compressedBuffer, cSize));
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if (r != CNBuffSize / 2) goto _output_error; }
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DISPLAYLEVEL(4, "OK \n");
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DISPLAYLEVEL(4, "test%3i : check decompressed result : ", testNb++);
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if (memcmp(decodedBuffer, CNBuffer, CNBuffSize / 2) != 0) goto _output_error;
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DISPLAYLEVEL(4, "OK \n");
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/* Dictionary and CCtx Duplication tests */
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{ ZSTD_CCtx* const ctxOrig = ZSTD_createCCtx();
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ZSTD_CCtx* const ctxDuplicated = ZSTD_createCCtx();
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static const size_t dictSize = 551;
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DISPLAYLEVEL(4, "test%3i : copy context too soon : ", testNb++);
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{ size_t const copyResult = ZSTD_copyCCtx(ctxDuplicated, ctxOrig, 0);
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if (!ZSTD_isError(copyResult)) goto _output_error; } /* error must be detected */
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DISPLAYLEVEL(4, "OK \n");
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DISPLAYLEVEL(4, "test%3i : load dictionary into context : ", testNb++);
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CHECK( ZSTD_compressBegin_usingDict(ctxOrig, CNBuffer, dictSize, 2) );
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CHECK( ZSTD_copyCCtx(ctxDuplicated, ctxOrig, 0) ); /* Begin_usingDict implies unknown srcSize, so match that */
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DISPLAYLEVEL(4, "OK \n");
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DISPLAYLEVEL(4, "test%3i : compress with flat dictionary : ", testNb++);
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cSize = 0;
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CHECKPLUS(r, ZSTD_compressEnd(ctxOrig, compressedBuffer, ZSTD_compressBound(CNBuffSize),
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(const char*)CNBuffer + dictSize, CNBuffSize - dictSize),
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cSize += r);
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DISPLAYLEVEL(4, "OK (%u bytes : %.2f%%)\n", (U32)cSize, (double)cSize/CNBuffSize*100);
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DISPLAYLEVEL(4, "test%3i : frame built with flat dictionary should be decompressible : ", testNb++);
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CHECKPLUS(r, ZSTD_decompress_usingDict(dctx,
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decodedBuffer, CNBuffSize,
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compressedBuffer, cSize,
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CNBuffer, dictSize),
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if (r != CNBuffSize - dictSize) goto _output_error);
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DISPLAYLEVEL(4, "OK \n");
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DISPLAYLEVEL(4, "test%3i : compress with duplicated context : ", testNb++);
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{ size_t const cSizeOrig = cSize;
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cSize = 0;
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CHECKPLUS(r, ZSTD_compressEnd(ctxDuplicated, compressedBuffer, ZSTD_compressBound(CNBuffSize),
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(const char*)CNBuffer + dictSize, CNBuffSize - dictSize),
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cSize += r);
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if (cSize != cSizeOrig) goto _output_error; /* should be identical ==> same size */
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}
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DISPLAYLEVEL(4, "OK (%u bytes : %.2f%%)\n", (U32)cSize, (double)cSize/CNBuffSize*100);
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DISPLAYLEVEL(4, "test%3i : frame built with duplicated context should be decompressible : ", testNb++);
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CHECKPLUS(r, ZSTD_decompress_usingDict(dctx,
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decodedBuffer, CNBuffSize,
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compressedBuffer, cSize,
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CNBuffer, dictSize),
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if (r != CNBuffSize - dictSize) goto _output_error);
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DISPLAYLEVEL(4, "OK \n");
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DISPLAYLEVEL(4, "test%3i : decompress with DDict : ", testNb++);
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{ ZSTD_DDict* const ddict = ZSTD_createDDict_byReference(CNBuffer, dictSize);
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size_t const r = ZSTD_decompress_usingDDict(dctx, decodedBuffer, CNBuffSize, compressedBuffer, cSize, ddict);
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if (r != CNBuffSize - dictSize) goto _output_error;
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DISPLAYLEVEL(4, "OK (size of DDict : %u) \n", (U32)ZSTD_sizeof_DDict(ddict));
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ZSTD_freeDDict(ddict);
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}
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DISPLAYLEVEL(4, "test%3i : check content size on duplicated context : ", testNb++);
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{ size_t const testSize = CNBuffSize / 3;
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{ ZSTD_parameters p = ZSTD_getParams(2, testSize, dictSize);
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p.fParams.contentSizeFlag = 1;
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CHECK( ZSTD_compressBegin_advanced(ctxOrig, CNBuffer, dictSize, p, testSize-1) );
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}
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CHECK( ZSTD_copyCCtx(ctxDuplicated, ctxOrig, testSize) );
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CHECKPLUS(r, ZSTD_compressEnd(ctxDuplicated, compressedBuffer, ZSTD_compressBound(testSize),
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(const char*)CNBuffer + dictSize, testSize),
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cSize = r);
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{ ZSTD_frameParams fp;
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if (ZSTD_getFrameParams(&fp, compressedBuffer, cSize)) goto _output_error;
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if ((fp.frameContentSize != testSize) && (fp.frameContentSize != 0)) goto _output_error;
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} }
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DISPLAYLEVEL(4, "OK \n");
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ZSTD_freeCCtx(ctxOrig);
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ZSTD_freeCCtx(ctxDuplicated);
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}
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/* Dictionary and dictBuilder tests */
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{ ZSTD_CCtx* const cctx = ZSTD_createCCtx();
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size_t dictSize = 16 KB;
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void* dictBuffer = malloc(dictSize);
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size_t const totalSampleSize = 1 MB;
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size_t const sampleUnitSize = 8 KB;
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U32 const nbSamples = (U32)(totalSampleSize / sampleUnitSize);
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size_t* const samplesSizes = (size_t*) malloc(nbSamples * sizeof(size_t));
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U32 dictID;
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if (dictBuffer==NULL || samplesSizes==NULL) {
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free(dictBuffer);
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free(samplesSizes);
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goto _output_error;
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}
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DISPLAYLEVEL(4, "test%3i : dictBuilder : ", testNb++);
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{ U32 u; for (u=0; u<nbSamples; u++) samplesSizes[u] = sampleUnitSize; }
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dictSize = ZDICT_trainFromBuffer(dictBuffer, dictSize,
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CNBuffer, samplesSizes, nbSamples);
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if (ZDICT_isError(dictSize)) goto _output_error;
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DISPLAYLEVEL(4, "OK, created dictionary of size %u \n", (U32)dictSize);
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DISPLAYLEVEL(4, "test%3i : check dictID : ", testNb++);
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dictID = ZDICT_getDictID(dictBuffer, dictSize);
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if (dictID==0) goto _output_error;
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DISPLAYLEVEL(4, "OK : %u \n", dictID);
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DISPLAYLEVEL(4, "test%3i : compress with dictionary : ", testNb++);
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cSize = ZSTD_compress_usingDict(cctx, compressedBuffer, ZSTD_compressBound(CNBuffSize),
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CNBuffer, CNBuffSize,
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dictBuffer, dictSize, 4);
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if (ZSTD_isError(cSize)) goto _output_error;
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DISPLAYLEVEL(4, "OK (%u bytes : %.2f%%)\n", (U32)cSize, (double)cSize/CNBuffSize*100);
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DISPLAYLEVEL(4, "test%3i : retrieve dictID from dictionary : ", testNb++);
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{ U32 const did = ZSTD_getDictID_fromDict(dictBuffer, dictSize);
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if (did != dictID) goto _output_error; /* non-conformant (content-only) dictionary */
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}
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DISPLAYLEVEL(4, "OK \n");
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DISPLAYLEVEL(4, "test%3i : retrieve dictID from frame : ", testNb++);
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{ U32 const did = ZSTD_getDictID_fromFrame(compressedBuffer, cSize);
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if (did != dictID) goto _output_error; /* non-conformant (content-only) dictionary */
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}
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DISPLAYLEVEL(4, "OK \n");
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DISPLAYLEVEL(4, "test%3i : frame built with dictionary should be decompressible : ", testNb++);
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CHECKPLUS(r, ZSTD_decompress_usingDict(dctx,
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decodedBuffer, CNBuffSize,
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compressedBuffer, cSize,
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dictBuffer, dictSize),
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if (r != CNBuffSize) goto _output_error);
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DISPLAYLEVEL(4, "OK \n");
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|
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DISPLAYLEVEL(4, "test%3i : compress without dictID : ", testNb++);
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{ ZSTD_parameters p = ZSTD_getParams(3, CNBuffSize, dictSize);
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p.fParams.noDictIDFlag = 1;
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cSize = ZSTD_compress_advanced(cctx, compressedBuffer, ZSTD_compressBound(CNBuffSize),
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CNBuffer, CNBuffSize,
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dictBuffer, dictSize, p);
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if (ZSTD_isError(cSize)) goto _output_error;
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}
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DISPLAYLEVEL(4, "OK (%u bytes : %.2f%%)\n", (U32)cSize, (double)cSize/CNBuffSize*100);
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|
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DISPLAYLEVEL(4, "test%3i : frame built without dictID should be decompressible : ", testNb++);
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CHECKPLUS(r, ZSTD_decompress_usingDict(dctx,
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decodedBuffer, CNBuffSize,
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compressedBuffer, cSize,
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dictBuffer, dictSize),
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if (r != CNBuffSize) goto _output_error);
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DISPLAYLEVEL(4, "OK \n");
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|
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DISPLAYLEVEL(4, "test%3i : dictionary containing only header should return error : ", testNb++);
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{
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const size_t ret = ZSTD_decompress_usingDict(
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dctx, decodedBuffer, CNBuffSize, compressedBuffer, cSize,
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"\x37\xa4\x30\xec\x11\x22\x33\x44", 8);
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if (ZSTD_getErrorCode(ret) != ZSTD_error_dictionary_corrupted) goto _output_error;
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}
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DISPLAYLEVEL(4, "OK \n");
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ZSTD_freeCCtx(cctx);
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free(dictBuffer);
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free(samplesSizes);
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}
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/* COVER dictionary builder tests */
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{ ZSTD_CCtx* const cctx = ZSTD_createCCtx();
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size_t dictSize = 16 KB;
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size_t optDictSize = dictSize;
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void* dictBuffer = malloc(dictSize);
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size_t const totalSampleSize = 1 MB;
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size_t const sampleUnitSize = 8 KB;
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U32 const nbSamples = (U32)(totalSampleSize / sampleUnitSize);
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size_t* const samplesSizes = (size_t*) malloc(nbSamples * sizeof(size_t));
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COVER_params_t params;
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U32 dictID;
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if (dictBuffer==NULL || samplesSizes==NULL) {
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free(dictBuffer);
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free(samplesSizes);
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goto _output_error;
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}
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DISPLAYLEVEL(4, "test%3i : COVER_trainFromBuffer : ", testNb++);
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{ U32 u; for (u=0; u<nbSamples; u++) samplesSizes[u] = sampleUnitSize; }
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memset(¶ms, 0, sizeof(params));
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params.d = 1 + (FUZ_rand(&seed) % 16);
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params.k = params.d + (FUZ_rand(&seed) % 256);
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dictSize = COVER_trainFromBuffer(dictBuffer, dictSize,
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CNBuffer, samplesSizes, nbSamples,
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params);
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if (ZDICT_isError(dictSize)) goto _output_error;
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DISPLAYLEVEL(4, "OK, created dictionary of size %u \n", (U32)dictSize);
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|
|
DISPLAYLEVEL(4, "test%3i : check dictID : ", testNb++);
|
|
dictID = ZDICT_getDictID(dictBuffer, dictSize);
|
|
if (dictID==0) goto _output_error;
|
|
DISPLAYLEVEL(4, "OK : %u \n", dictID);
|
|
|
|
DISPLAYLEVEL(4, "test%3i : COVER_optimizeTrainFromBuffer : ", testNb++);
|
|
memset(¶ms, 0, sizeof(params));
|
|
params.steps = 4;
|
|
optDictSize = COVER_optimizeTrainFromBuffer(dictBuffer, optDictSize,
|
|
CNBuffer, samplesSizes, nbSamples / 4,
|
|
¶ms);
|
|
if (ZDICT_isError(optDictSize)) goto _output_error;
|
|
DISPLAYLEVEL(4, "OK, created dictionary of size %u \n", (U32)optDictSize);
|
|
|
|
DISPLAYLEVEL(4, "test%3i : check dictID : ", testNb++);
|
|
dictID = ZDICT_getDictID(dictBuffer, optDictSize);
|
|
if (dictID==0) goto _output_error;
|
|
DISPLAYLEVEL(4, "OK : %u \n", dictID);
|
|
|
|
ZSTD_freeCCtx(cctx);
|
|
free(dictBuffer);
|
|
free(samplesSizes);
|
|
}
|
|
|
|
/* Decompression defense tests */
|
|
DISPLAYLEVEL(4, "test%3i : Check input length for magic number : ", testNb++);
|
|
{ size_t const r = ZSTD_decompress(decodedBuffer, CNBuffSize, CNBuffer, 3);
|
|
if (!ZSTD_isError(r)) goto _output_error;
|
|
if (r != (size_t)-ZSTD_error_srcSize_wrong) goto _output_error; }
|
|
DISPLAYLEVEL(4, "OK \n");
|
|
|
|
DISPLAYLEVEL(4, "test%3i : Check magic Number : ", testNb++);
|
|
((char*)(CNBuffer))[0] = 1;
|
|
{ size_t const r = ZSTD_decompress(decodedBuffer, CNBuffSize, CNBuffer, 4);
|
|
if (!ZSTD_isError(r)) goto _output_error; }
|
|
DISPLAYLEVEL(4, "OK \n");
|
|
|
|
/* block API tests */
|
|
{ ZSTD_CCtx* const cctx = ZSTD_createCCtx();
|
|
static const size_t dictSize = 65 KB;
|
|
static const size_t blockSize = 100 KB; /* won't cause pb with small dict size */
|
|
size_t cSize2;
|
|
|
|
/* basic block compression */
|
|
DISPLAYLEVEL(4, "test%3i : Block compression test : ", testNb++);
|
|
CHECK( ZSTD_compressBegin(cctx, 5) );
|
|
cSize = ZSTD_compressBlock(cctx, compressedBuffer, ZSTD_compressBound(blockSize), CNBuffer, blockSize);
|
|
if (ZSTD_isError(cSize)) goto _output_error;
|
|
DISPLAYLEVEL(4, "OK \n");
|
|
|
|
DISPLAYLEVEL(4, "test%3i : Block decompression test : ", testNb++);
|
|
CHECK( ZSTD_decompressBegin(dctx) );
|
|
{ CHECK_V(r, ZSTD_decompressBlock(dctx, decodedBuffer, CNBuffSize, compressedBuffer, cSize) );
|
|
if (r != blockSize) goto _output_error; }
|
|
DISPLAYLEVEL(4, "OK \n");
|
|
|
|
/* dictionary block compression */
|
|
DISPLAYLEVEL(4, "test%3i : Dictionary Block compression test : ", testNb++);
|
|
CHECK( ZSTD_compressBegin_usingDict(cctx, CNBuffer, dictSize, 5) );
|
|
cSize = ZSTD_compressBlock(cctx, compressedBuffer, ZSTD_compressBound(blockSize), (char*)CNBuffer+dictSize, blockSize);
|
|
if (ZSTD_isError(cSize)) goto _output_error;
|
|
cSize2 = ZSTD_compressBlock(cctx, (char*)compressedBuffer+cSize, ZSTD_compressBound(blockSize), (char*)CNBuffer+dictSize+blockSize, blockSize);
|
|
if (ZSTD_isError(cSize2)) goto _output_error;
|
|
memcpy((char*)compressedBuffer+cSize, (char*)CNBuffer+dictSize+blockSize, blockSize); /* fake non-compressed block */
|
|
cSize2 = ZSTD_compressBlock(cctx, (char*)compressedBuffer+cSize+blockSize, ZSTD_compressBound(blockSize),
|
|
(char*)CNBuffer+dictSize+2*blockSize, blockSize);
|
|
if (ZSTD_isError(cSize2)) goto _output_error;
|
|
DISPLAYLEVEL(4, "OK \n");
|
|
|
|
DISPLAYLEVEL(4, "test%3i : Dictionary Block decompression test : ", testNb++);
|
|
CHECK( ZSTD_decompressBegin_usingDict(dctx, CNBuffer, dictSize) );
|
|
{ CHECK_V( r, ZSTD_decompressBlock(dctx, decodedBuffer, CNBuffSize, compressedBuffer, cSize) );
|
|
if (r != blockSize) goto _output_error; }
|
|
ZSTD_insertBlock(dctx, (char*)decodedBuffer+blockSize, blockSize); /* insert non-compressed block into dctx history */
|
|
{ CHECK_V( r, ZSTD_decompressBlock(dctx, (char*)decodedBuffer+2*blockSize, CNBuffSize, (char*)compressedBuffer+cSize+blockSize, cSize2) );
|
|
if (r != blockSize) goto _output_error; }
|
|
DISPLAYLEVEL(4, "OK \n");
|
|
|
|
ZSTD_freeCCtx(cctx);
|
|
ZSTD_freeDCtx(dctx);
|
|
}
|
|
|
|
/* long rle test */
|
|
{ size_t sampleSize = 0;
|
|
DISPLAYLEVEL(4, "test%3i : Long RLE test : ", testNb++);
|
|
RDG_genBuffer(CNBuffer, sampleSize, compressibility, 0., seed+1);
|
|
memset((char*)CNBuffer+sampleSize, 'B', 256 KB - 1);
|
|
sampleSize += 256 KB - 1;
|
|
RDG_genBuffer((char*)CNBuffer+sampleSize, 96 KB, compressibility, 0., seed+2);
|
|
sampleSize += 96 KB;
|
|
cSize = ZSTD_compress(compressedBuffer, ZSTD_compressBound(sampleSize), CNBuffer, sampleSize, 1);
|
|
if (ZSTD_isError(cSize)) goto _output_error;
|
|
{ CHECK_V(regenSize, ZSTD_decompress(decodedBuffer, sampleSize, compressedBuffer, cSize));
|
|
if (regenSize!=sampleSize) goto _output_error; }
|
|
DISPLAYLEVEL(4, "OK \n");
|
|
}
|
|
|
|
/* All zeroes test (test bug #137) */
|
|
#define ZEROESLENGTH 100
|
|
DISPLAYLEVEL(4, "test%3i : compress %u zeroes : ", testNb++, ZEROESLENGTH);
|
|
memset(CNBuffer, 0, ZEROESLENGTH);
|
|
{ CHECK_V(r, ZSTD_compress(compressedBuffer, ZSTD_compressBound(ZEROESLENGTH), CNBuffer, ZEROESLENGTH, 1) );
|
|
cSize = r; }
|
|
DISPLAYLEVEL(4, "OK (%u bytes : %.2f%%)\n", (U32)cSize, (double)cSize/ZEROESLENGTH*100);
|
|
|
|
DISPLAYLEVEL(4, "test%3i : decompress %u zeroes : ", testNb++, ZEROESLENGTH);
|
|
{ CHECK_V(r, ZSTD_decompress(decodedBuffer, ZEROESLENGTH, compressedBuffer, cSize) );
|
|
if (r != ZEROESLENGTH) goto _output_error; }
|
|
DISPLAYLEVEL(4, "OK \n");
|
|
|
|
/* nbSeq limit test */
|
|
#define _3BYTESTESTLENGTH 131000
|
|
#define NB3BYTESSEQLOG 9
|
|
#define NB3BYTESSEQ (1 << NB3BYTESSEQLOG)
|
|
#define NB3BYTESSEQMASK (NB3BYTESSEQ-1)
|
|
/* creates a buffer full of 3-bytes sequences */
|
|
{ BYTE _3BytesSeqs[NB3BYTESSEQ][3];
|
|
U32 rSeed = 1;
|
|
|
|
/* create batch of 3-bytes sequences */
|
|
{ int i;
|
|
for (i=0; i < NB3BYTESSEQ; i++) {
|
|
_3BytesSeqs[i][0] = (BYTE)(FUZ_rand(&rSeed) & 255);
|
|
_3BytesSeqs[i][1] = (BYTE)(FUZ_rand(&rSeed) & 255);
|
|
_3BytesSeqs[i][2] = (BYTE)(FUZ_rand(&rSeed) & 255);
|
|
} }
|
|
|
|
/* randomly fills CNBuffer with prepared 3-bytes sequences */
|
|
{ int i;
|
|
for (i=0; i < _3BYTESTESTLENGTH; i += 3) { /* note : CNBuffer size > _3BYTESTESTLENGTH+3 */
|
|
U32 const id = FUZ_rand(&rSeed) & NB3BYTESSEQMASK;
|
|
((BYTE*)CNBuffer)[i+0] = _3BytesSeqs[id][0];
|
|
((BYTE*)CNBuffer)[i+1] = _3BytesSeqs[id][1];
|
|
((BYTE*)CNBuffer)[i+2] = _3BytesSeqs[id][2];
|
|
} } }
|
|
DISPLAYLEVEL(4, "test%3i : compress lots 3-bytes sequences : ", testNb++);
|
|
{ CHECK_V(r, ZSTD_compress(compressedBuffer, ZSTD_compressBound(_3BYTESTESTLENGTH),
|
|
CNBuffer, _3BYTESTESTLENGTH, 19) );
|
|
cSize = r; }
|
|
DISPLAYLEVEL(4, "OK (%u bytes : %.2f%%)\n", (U32)cSize, (double)cSize/_3BYTESTESTLENGTH*100);
|
|
|
|
DISPLAYLEVEL(4, "test%3i : decompress lots 3-bytes sequence : ", testNb++);
|
|
{ CHECK_V(r, ZSTD_decompress(decodedBuffer, _3BYTESTESTLENGTH, compressedBuffer, cSize) );
|
|
if (r != _3BYTESTESTLENGTH) goto _output_error; }
|
|
DISPLAYLEVEL(4, "OK \n");
|
|
|
|
/* findFrameCompressedSize on skippable frames */
|
|
DISPLAYLEVEL(4, "test%3i : frame compressed size of skippable frame : ", testNb++);
|
|
{ const char* frame = "\x50\x2a\x4d\x18\x05\x0\x0\0abcde";
|
|
size_t const frameSrcSize = 13;
|
|
if (ZSTD_findFrameCompressedSize(frame, frameSrcSize) != frameSrcSize) goto _output_error; }
|
|
DISPLAYLEVEL(4, "OK \n");
|
|
|
|
/* error string tests */
|
|
DISPLAYLEVEL(4, "test%3i : testing ZSTD error code strings : ", testNb++);
|
|
if (strcmp("No error detected", ZSTD_getErrorName((ZSTD_ErrorCode)(0-ZSTD_error_no_error))) != 0) goto _output_error;
|
|
if (strcmp("No error detected", ZSTD_getErrorString(ZSTD_error_no_error)) != 0) goto _output_error;
|
|
if (strcmp("Unspecified error code", ZSTD_getErrorString((ZSTD_ErrorCode)(0-ZSTD_error_GENERIC))) != 0) goto _output_error;
|
|
if (strcmp("Error (generic)", ZSTD_getErrorName((size_t)0-ZSTD_error_GENERIC)) != 0) goto _output_error;
|
|
if (strcmp("Error (generic)", ZSTD_getErrorString(ZSTD_error_GENERIC)) != 0) goto _output_error;
|
|
if (strcmp("No error detected", ZSTD_getErrorName(ZSTD_error_GENERIC)) != 0) goto _output_error;
|
|
DISPLAYLEVEL(4, "OK \n");
|
|
|
|
_end:
|
|
free(CNBuffer);
|
|
free(compressedBuffer);
|
|
free(decodedBuffer);
|
|
return testResult;
|
|
|
|
_output_error:
|
|
testResult = 1;
|
|
DISPLAY("Error detected in Unit tests ! \n");
|
|
goto _end;
|
|
}
|
|
|
|
|
|
static size_t findDiff(const void* buf1, const void* buf2, size_t max)
|
|
{
|
|
const BYTE* b1 = (const BYTE*)buf1;
|
|
const BYTE* b2 = (const BYTE*)buf2;
|
|
size_t u;
|
|
for (u=0; u<max; u++) {
|
|
if (b1[u] != b2[u]) break;
|
|
}
|
|
return u;
|
|
}
|
|
|
|
|
|
static size_t FUZ_rLogLength(U32* seed, U32 logLength)
|
|
{
|
|
size_t const lengthMask = ((size_t)1 << logLength) - 1;
|
|
return (lengthMask+1) + (FUZ_rand(seed) & lengthMask);
|
|
}
|
|
|
|
static size_t FUZ_randomLength(U32* seed, U32 maxLog)
|
|
{
|
|
U32 const logLength = FUZ_rand(seed) % maxLog;
|
|
return FUZ_rLogLength(seed, logLength);
|
|
}
|
|
|
|
#undef CHECK
|
|
#define CHECK(cond, ...) if (cond) { DISPLAY("Error => "); DISPLAY(__VA_ARGS__); \
|
|
DISPLAY(" (seed %u, test nb %u) \n", seed, testNb); goto _output_error; }
|
|
|
|
static int fuzzerTests(U32 seed, U32 nbTests, unsigned startTest, U32 const maxDurationS, double compressibility)
|
|
{
|
|
static const U32 maxSrcLog = 23;
|
|
static const U32 maxSampleLog = 22;
|
|
size_t const srcBufferSize = (size_t)1<<maxSrcLog;
|
|
size_t const dstBufferSize = (size_t)1<<maxSampleLog;
|
|
size_t const cBufferSize = ZSTD_compressBound(dstBufferSize);
|
|
BYTE* cNoiseBuffer[5];
|
|
BYTE* srcBuffer; /* jumping pointer */
|
|
BYTE* const cBuffer = (BYTE*) malloc (cBufferSize);
|
|
BYTE* const dstBuffer = (BYTE*) malloc (dstBufferSize);
|
|
BYTE* const mirrorBuffer = (BYTE*) malloc (dstBufferSize);
|
|
ZSTD_CCtx* const refCtx = ZSTD_createCCtx();
|
|
ZSTD_CCtx* const ctx = ZSTD_createCCtx();
|
|
ZSTD_DCtx* const dctx = ZSTD_createDCtx();
|
|
U32 result = 0;
|
|
U32 testNb = 0;
|
|
U32 coreSeed = seed, lseed = 0;
|
|
clock_t const startClock = clock();
|
|
clock_t const maxClockSpan = maxDurationS * CLOCKS_PER_SEC;
|
|
|
|
/* allocation */
|
|
cNoiseBuffer[0] = (BYTE*)malloc (srcBufferSize);
|
|
cNoiseBuffer[1] = (BYTE*)malloc (srcBufferSize);
|
|
cNoiseBuffer[2] = (BYTE*)malloc (srcBufferSize);
|
|
cNoiseBuffer[3] = (BYTE*)malloc (srcBufferSize);
|
|
cNoiseBuffer[4] = (BYTE*)malloc (srcBufferSize);
|
|
CHECK (!cNoiseBuffer[0] || !cNoiseBuffer[1] || !cNoiseBuffer[2] || !cNoiseBuffer[3] || !cNoiseBuffer[4]
|
|
|| !dstBuffer || !mirrorBuffer || !cBuffer || !refCtx || !ctx || !dctx,
|
|
"Not enough memory, fuzzer tests cancelled");
|
|
|
|
/* Create initial samples */
|
|
RDG_genBuffer(cNoiseBuffer[0], srcBufferSize, 0.00, 0., coreSeed); /* pure noise */
|
|
RDG_genBuffer(cNoiseBuffer[1], srcBufferSize, 0.05, 0., coreSeed); /* barely compressible */
|
|
RDG_genBuffer(cNoiseBuffer[2], srcBufferSize, compressibility, 0., coreSeed);
|
|
RDG_genBuffer(cNoiseBuffer[3], srcBufferSize, 0.95, 0., coreSeed); /* highly compressible */
|
|
RDG_genBuffer(cNoiseBuffer[4], srcBufferSize, 1.00, 0., coreSeed); /* sparse content */
|
|
srcBuffer = cNoiseBuffer[2];
|
|
|
|
/* catch up testNb */
|
|
for (testNb=1; testNb < startTest; testNb++) FUZ_rand(&coreSeed);
|
|
|
|
/* main test loop */
|
|
for ( ; (testNb <= nbTests) || (FUZ_clockSpan(startClock) < maxClockSpan); testNb++ ) {
|
|
size_t sampleSize, maxTestSize, totalTestSize;
|
|
size_t cSize, totalCSize, totalGenSize;
|
|
XXH64_state_t xxhState;
|
|
U64 crcOrig;
|
|
BYTE* sampleBuffer;
|
|
const BYTE* dict;
|
|
size_t dictSize;
|
|
|
|
/* notification */
|
|
if (nbTests >= testNb) { DISPLAYUPDATE(2, "\r%6u/%6u ", testNb, nbTests); }
|
|
else { DISPLAYUPDATE(2, "\r%6u ", testNb); }
|
|
|
|
FUZ_rand(&coreSeed);
|
|
{ U32 const prime1 = 2654435761U; lseed = coreSeed ^ prime1; }
|
|
|
|
/* srcBuffer selection [0-4] */
|
|
{ U32 buffNb = FUZ_rand(&lseed) & 0x7F;
|
|
if (buffNb & 7) buffNb=2; /* most common : compressible (P) */
|
|
else {
|
|
buffNb >>= 3;
|
|
if (buffNb & 7) {
|
|
const U32 tnb[2] = { 1, 3 }; /* barely/highly compressible */
|
|
buffNb = tnb[buffNb >> 3];
|
|
} else {
|
|
const U32 tnb[2] = { 0, 4 }; /* not compressible / sparse */
|
|
buffNb = tnb[buffNb >> 3];
|
|
} }
|
|
srcBuffer = cNoiseBuffer[buffNb];
|
|
}
|
|
|
|
/* select src segment */
|
|
sampleSize = FUZ_randomLength(&lseed, maxSampleLog);
|
|
|
|
/* create sample buffer (to catch read error with valgrind & sanitizers) */
|
|
sampleBuffer = (BYTE*)malloc(sampleSize);
|
|
CHECK(sampleBuffer==NULL, "not enough memory for sample buffer");
|
|
{ size_t const sampleStart = FUZ_rand(&lseed) % (srcBufferSize - sampleSize);
|
|
memcpy(sampleBuffer, srcBuffer + sampleStart, sampleSize); }
|
|
crcOrig = XXH64(sampleBuffer, sampleSize, 0);
|
|
|
|
/* compression tests */
|
|
{ unsigned const cLevel = (FUZ_rand(&lseed) % (ZSTD_maxCLevel() - (FUZ_highbit32((U32)sampleSize)/3))) + 1;
|
|
cSize = ZSTD_compressCCtx(ctx, cBuffer, cBufferSize, sampleBuffer, sampleSize, cLevel);
|
|
CHECK(ZSTD_isError(cSize), "ZSTD_compressCCtx failed : %s", ZSTD_getErrorName(cSize));
|
|
|
|
/* compression failure test : too small dest buffer */
|
|
if (cSize > 3) {
|
|
const size_t missing = (FUZ_rand(&lseed) % (cSize-2)) + 1; /* no problem, as cSize > 4 (frameHeaderSizer) */
|
|
const size_t tooSmallSize = cSize - missing;
|
|
const U32 endMark = 0x4DC2B1A9;
|
|
memcpy(dstBuffer+tooSmallSize, &endMark, 4);
|
|
{ size_t const errorCode = ZSTD_compressCCtx(ctx, dstBuffer, tooSmallSize, sampleBuffer, sampleSize, cLevel);
|
|
CHECK(!ZSTD_isError(errorCode), "ZSTD_compressCCtx should have failed ! (buffer too small : %u < %u)", (U32)tooSmallSize, (U32)cSize); }
|
|
{ U32 endCheck; memcpy(&endCheck, dstBuffer+tooSmallSize, 4);
|
|
CHECK(endCheck != endMark, "ZSTD_compressCCtx : dst buffer overflow"); }
|
|
} }
|
|
|
|
/* Decompressed size test */
|
|
{ unsigned long long const rSize = ZSTD_findDecompressedSize(cBuffer, cSize);
|
|
CHECK(rSize != sampleSize, "decompressed size incorrect");
|
|
}
|
|
|
|
/* frame header decompression test */
|
|
{ ZSTD_frameParams dParams;
|
|
size_t const check = ZSTD_getFrameParams(&dParams, cBuffer, cSize);
|
|
CHECK(ZSTD_isError(check), "Frame Parameters extraction failed");
|
|
CHECK(dParams.frameContentSize != sampleSize, "Frame content size incorrect");
|
|
}
|
|
|
|
/* successful decompression test */
|
|
{ size_t const margin = (FUZ_rand(&lseed) & 1) ? 0 : (FUZ_rand(&lseed) & 31) + 1;
|
|
size_t const dSize = ZSTD_decompress(dstBuffer, sampleSize + margin, cBuffer, cSize);
|
|
CHECK(dSize != sampleSize, "ZSTD_decompress failed (%s) (srcSize : %u ; cSize : %u)", ZSTD_getErrorName(dSize), (U32)sampleSize, (U32)cSize);
|
|
{ U64 const crcDest = XXH64(dstBuffer, sampleSize, 0);
|
|
CHECK(crcOrig != crcDest, "decompression result corrupted (pos %u / %u)", (U32)findDiff(sampleBuffer, dstBuffer, sampleSize), (U32)sampleSize);
|
|
} }
|
|
|
|
free(sampleBuffer); /* no longer useful after this point */
|
|
|
|
/* truncated src decompression test */
|
|
{ size_t const missing = (FUZ_rand(&lseed) % (cSize-2)) + 1; /* no problem, as cSize > 4 (frameHeaderSizer) */
|
|
size_t const tooSmallSize = cSize - missing;
|
|
void* cBufferTooSmall = malloc(tooSmallSize); /* valgrind will catch read overflows */
|
|
CHECK(cBufferTooSmall == NULL, "not enough memory !");
|
|
memcpy(cBufferTooSmall, cBuffer, tooSmallSize);
|
|
{ size_t const errorCode = ZSTD_decompress(dstBuffer, dstBufferSize, cBufferTooSmall, tooSmallSize);
|
|
CHECK(!ZSTD_isError(errorCode), "ZSTD_decompress should have failed ! (truncated src buffer)"); }
|
|
free(cBufferTooSmall);
|
|
}
|
|
|
|
/* too small dst decompression test */
|
|
if (sampleSize > 3) {
|
|
size_t const missing = (FUZ_rand(&lseed) % (sampleSize-2)) + 1; /* no problem, as cSize > 4 (frameHeaderSizer) */
|
|
size_t const tooSmallSize = sampleSize - missing;
|
|
static const BYTE token = 0xA9;
|
|
dstBuffer[tooSmallSize] = token;
|
|
{ size_t const errorCode = ZSTD_decompress(dstBuffer, tooSmallSize, cBuffer, cSize);
|
|
CHECK(!ZSTD_isError(errorCode), "ZSTD_decompress should have failed : %u > %u (dst buffer too small)", (U32)errorCode, (U32)tooSmallSize); }
|
|
CHECK(dstBuffer[tooSmallSize] != token, "ZSTD_decompress : dst buffer overflow");
|
|
}
|
|
|
|
/* noisy src decompression test */
|
|
if (cSize > 6) {
|
|
/* insert noise into src */
|
|
{ U32 const maxNbBits = FUZ_highbit32((U32)(cSize-4));
|
|
size_t pos = 4; /* preserve magic number (too easy to detect) */
|
|
for (;;) {
|
|
/* keep some original src */
|
|
{ U32 const nbBits = FUZ_rand(&lseed) % maxNbBits;
|
|
size_t const mask = (1<<nbBits) - 1;
|
|
size_t const skipLength = FUZ_rand(&lseed) & mask;
|
|
pos += skipLength;
|
|
}
|
|
if (pos <= cSize) break;
|
|
/* add noise */
|
|
{ U32 const nbBitsCodes = FUZ_rand(&lseed) % maxNbBits;
|
|
U32 const nbBits = nbBitsCodes ? nbBitsCodes-1 : 0;
|
|
size_t const mask = (1<<nbBits) - 1;
|
|
size_t const rNoiseLength = (FUZ_rand(&lseed) & mask) + 1;
|
|
size_t const noiseLength = MIN(rNoiseLength, cSize-pos);
|
|
size_t const noiseStart = FUZ_rand(&lseed) % (srcBufferSize - noiseLength);
|
|
memcpy(cBuffer + pos, srcBuffer + noiseStart, noiseLength);
|
|
pos += noiseLength;
|
|
} } }
|
|
|
|
/* decompress noisy source */
|
|
{ U32 const endMark = 0xA9B1C3D6;
|
|
memcpy(dstBuffer+sampleSize, &endMark, 4);
|
|
{ size_t const decompressResult = ZSTD_decompress(dstBuffer, sampleSize, cBuffer, cSize);
|
|
/* result *may* be an unlikely success, but even then, it must strictly respect dst buffer boundaries */
|
|
CHECK((!ZSTD_isError(decompressResult)) && (decompressResult>sampleSize),
|
|
"ZSTD_decompress on noisy src : result is too large : %u > %u (dst buffer)", (U32)decompressResult, (U32)sampleSize);
|
|
}
|
|
{ U32 endCheck; memcpy(&endCheck, dstBuffer+sampleSize, 4);
|
|
CHECK(endMark!=endCheck, "ZSTD_decompress on noisy src : dst buffer overflow");
|
|
} } } /* noisy src decompression test */
|
|
|
|
/*===== Streaming compression test, scattered segments and dictionary =====*/
|
|
|
|
{ U32 const testLog = FUZ_rand(&lseed) % maxSrcLog;
|
|
int const cLevel = (FUZ_rand(&lseed) % (ZSTD_maxCLevel() - (testLog/3))) + 1;
|
|
maxTestSize = FUZ_rLogLength(&lseed, testLog);
|
|
if (maxTestSize >= dstBufferSize) maxTestSize = dstBufferSize-1;
|
|
|
|
dictSize = FUZ_randomLength(&lseed, maxSampleLog); /* needed also for decompression */
|
|
dict = srcBuffer + (FUZ_rand(&lseed) % (srcBufferSize - dictSize));
|
|
|
|
if (FUZ_rand(&lseed) & 0xF) {
|
|
size_t const errorCode = ZSTD_compressBegin_usingDict(refCtx, dict, dictSize, cLevel);
|
|
CHECK (ZSTD_isError(errorCode), "ZSTD_compressBegin_usingDict error : %s", ZSTD_getErrorName(errorCode));
|
|
} else {
|
|
ZSTD_compressionParameters const cPar = ZSTD_getCParams(cLevel, 0, dictSize);
|
|
ZSTD_frameParameters const fpar = { FUZ_rand(&lseed)&1 /* contentSizeFlag */,
|
|
!(FUZ_rand(&lseed)&3) /* contentChecksumFlag*/,
|
|
0 /*NodictID*/ }; /* note : since dictionary is fake, dictIDflag has no impact */
|
|
ZSTD_parameters p;
|
|
size_t errorCode;
|
|
p.cParams = cPar; p.fParams = fpar;
|
|
errorCode = ZSTD_compressBegin_advanced(refCtx, dict, dictSize, p, 0);
|
|
CHECK (ZSTD_isError(errorCode), "ZSTD_compressBegin_advanced error : %s", ZSTD_getErrorName(errorCode));
|
|
}
|
|
{ size_t const errorCode = ZSTD_copyCCtx(ctx, refCtx, 0);
|
|
CHECK (ZSTD_isError(errorCode), "ZSTD_copyCCtx error : %s", ZSTD_getErrorName(errorCode));
|
|
} }
|
|
XXH64_reset(&xxhState, 0);
|
|
ZSTD_setCCtxParameter(ctx, ZSTD_p_forceWindow, FUZ_rand(&lseed) & 1);
|
|
{ U32 const nbChunks = (FUZ_rand(&lseed) & 127) + 2;
|
|
U32 n;
|
|
for (totalTestSize=0, cSize=0, n=0 ; n<nbChunks ; n++) {
|
|
size_t const segmentSize = FUZ_randomLength(&lseed, maxSampleLog);
|
|
size_t const segmentStart = FUZ_rand(&lseed) % (srcBufferSize - segmentSize);
|
|
|
|
if (cBufferSize-cSize < ZSTD_compressBound(segmentSize)) break; /* avoid invalid dstBufferTooSmall */
|
|
if (totalTestSize+segmentSize > maxTestSize) break;
|
|
|
|
{ size_t const compressResult = ZSTD_compressContinue(ctx, cBuffer+cSize, cBufferSize-cSize, srcBuffer+segmentStart, segmentSize);
|
|
CHECK (ZSTD_isError(compressResult), "multi-segments compression error : %s", ZSTD_getErrorName(compressResult));
|
|
cSize += compressResult;
|
|
}
|
|
XXH64_update(&xxhState, srcBuffer+segmentStart, segmentSize);
|
|
memcpy(mirrorBuffer + totalTestSize, srcBuffer+segmentStart, segmentSize);
|
|
totalTestSize += segmentSize;
|
|
} }
|
|
|
|
{ size_t const flushResult = ZSTD_compressEnd(ctx, cBuffer+cSize, cBufferSize-cSize, NULL, 0);
|
|
CHECK (ZSTD_isError(flushResult), "multi-segments epilogue error : %s", ZSTD_getErrorName(flushResult));
|
|
cSize += flushResult;
|
|
}
|
|
crcOrig = XXH64_digest(&xxhState);
|
|
|
|
/* streaming decompression test */
|
|
if (dictSize<8) dictSize=0, dict=NULL; /* disable dictionary */
|
|
{ size_t const errorCode = ZSTD_decompressBegin_usingDict(dctx, dict, dictSize);
|
|
CHECK (ZSTD_isError(errorCode), "ZSTD_decompressBegin_usingDict error : %s", ZSTD_getErrorName(errorCode)); }
|
|
totalCSize = 0;
|
|
totalGenSize = 0;
|
|
while (totalCSize < cSize) {
|
|
size_t const inSize = ZSTD_nextSrcSizeToDecompress(dctx);
|
|
size_t const genSize = ZSTD_decompressContinue(dctx, dstBuffer+totalGenSize, dstBufferSize-totalGenSize, cBuffer+totalCSize, inSize);
|
|
CHECK (ZSTD_isError(genSize), "ZSTD_decompressContinue error : %s", ZSTD_getErrorName(genSize));
|
|
totalGenSize += genSize;
|
|
totalCSize += inSize;
|
|
}
|
|
CHECK (ZSTD_nextSrcSizeToDecompress(dctx) != 0, "frame not fully decoded");
|
|
CHECK (totalGenSize != totalTestSize, "streaming decompressed data : wrong size")
|
|
CHECK (totalCSize != cSize, "compressed data should be fully read")
|
|
{ U64 const crcDest = XXH64(dstBuffer, totalTestSize, 0);
|
|
if (crcDest!=crcOrig) {
|
|
size_t const errorPos = findDiff(mirrorBuffer, dstBuffer, totalTestSize);
|
|
CHECK (1, "streaming decompressed data corrupted : byte %u / %u (%02X!=%02X)",
|
|
(U32)errorPos, (U32)totalTestSize, dstBuffer[errorPos], mirrorBuffer[errorPos]);
|
|
} }
|
|
} /* for ( ; (testNb <= nbTests) */
|
|
DISPLAY("\r%u fuzzer tests completed \n", testNb-1);
|
|
|
|
_cleanup:
|
|
ZSTD_freeCCtx(refCtx);
|
|
ZSTD_freeCCtx(ctx);
|
|
ZSTD_freeDCtx(dctx);
|
|
free(cNoiseBuffer[0]);
|
|
free(cNoiseBuffer[1]);
|
|
free(cNoiseBuffer[2]);
|
|
free(cNoiseBuffer[3]);
|
|
free(cNoiseBuffer[4]);
|
|
free(cBuffer);
|
|
free(dstBuffer);
|
|
free(mirrorBuffer);
|
|
return result;
|
|
|
|
_output_error:
|
|
result = 1;
|
|
goto _cleanup;
|
|
}
|
|
|
|
|
|
/*_*******************************************************
|
|
* Command line
|
|
*********************************************************/
|
|
int FUZ_usage(const char* programName)
|
|
{
|
|
DISPLAY( "Usage :\n");
|
|
DISPLAY( " %s [args]\n", programName);
|
|
DISPLAY( "\n");
|
|
DISPLAY( "Arguments :\n");
|
|
DISPLAY( " -i# : Nb of tests (default:%u) \n", nbTestsDefault);
|
|
DISPLAY( " -s# : Select seed (default:prompt user)\n");
|
|
DISPLAY( " -t# : Select starting test number (default:0)\n");
|
|
DISPLAY( " -P# : Select compressibility in %% (default:%u%%)\n", FUZ_compressibility_default);
|
|
DISPLAY( " -v : verbose\n");
|
|
DISPLAY( " -p : pause at the end\n");
|
|
DISPLAY( " -h : display help and exit\n");
|
|
return 0;
|
|
}
|
|
|
|
|
|
int main(int argc, const char** argv)
|
|
{
|
|
U32 seed=0;
|
|
int seedset=0;
|
|
int argNb;
|
|
int nbTests = nbTestsDefault;
|
|
int testNb = 0;
|
|
U32 proba = FUZ_compressibility_default;
|
|
int result=0;
|
|
U32 mainPause = 0;
|
|
U32 maxDuration = 0;
|
|
const char* programName = argv[0];
|
|
|
|
/* Check command line */
|
|
for (argNb=1; argNb<argc; argNb++) {
|
|
const char* argument = argv[argNb];
|
|
if(!argument) continue; /* Protection if argument empty */
|
|
|
|
/* Handle commands. Aggregated commands are allowed */
|
|
if (argument[0]=='-') {
|
|
argument++;
|
|
while (*argument!=0) {
|
|
switch(*argument)
|
|
{
|
|
case 'h':
|
|
return FUZ_usage(programName);
|
|
case 'v':
|
|
argument++;
|
|
g_displayLevel=4;
|
|
break;
|
|
case 'q':
|
|
argument++;
|
|
g_displayLevel--;
|
|
break;
|
|
case 'p': /* pause at the end */
|
|
argument++;
|
|
mainPause = 1;
|
|
break;
|
|
|
|
case 'i':
|
|
argument++; maxDuration=0;
|
|
nbTests=0;
|
|
while ((*argument>='0') && (*argument<='9')) {
|
|
nbTests *= 10;
|
|
nbTests += *argument - '0';
|
|
argument++;
|
|
}
|
|
break;
|
|
|
|
case 'T':
|
|
argument++;
|
|
nbTests=0; maxDuration=0;
|
|
while ((*argument>='0') && (*argument<='9')) {
|
|
maxDuration *= 10;
|
|
maxDuration += *argument - '0';
|
|
argument++;
|
|
}
|
|
if (*argument=='m') maxDuration *=60, argument++;
|
|
if (*argument=='n') argument++;
|
|
break;
|
|
|
|
case 's':
|
|
argument++;
|
|
seed=0;
|
|
seedset=1;
|
|
while ((*argument>='0') && (*argument<='9')) {
|
|
seed *= 10;
|
|
seed += *argument - '0';
|
|
argument++;
|
|
}
|
|
break;
|
|
|
|
case 't':
|
|
argument++;
|
|
testNb=0;
|
|
while ((*argument>='0') && (*argument<='9')) {
|
|
testNb *= 10;
|
|
testNb += *argument - '0';
|
|
argument++;
|
|
}
|
|
break;
|
|
|
|
case 'P': /* compressibility % */
|
|
argument++;
|
|
proba=0;
|
|
while ((*argument>='0') && (*argument<='9')) {
|
|
proba *= 10;
|
|
proba += *argument - '0';
|
|
argument++;
|
|
}
|
|
if (proba>100) proba=100;
|
|
break;
|
|
|
|
default:
|
|
return FUZ_usage(programName);
|
|
} } } } /* for (argNb=1; argNb<argc; argNb++) */
|
|
|
|
/* Get Seed */
|
|
DISPLAY("Starting zstd tester (%i-bits, %s)\n", (int)(sizeof(size_t)*8), ZSTD_VERSION_STRING);
|
|
|
|
if (!seedset) {
|
|
time_t const t = time(NULL);
|
|
U32 const h = XXH32(&t, sizeof(t), 1);
|
|
seed = h % 10000;
|
|
}
|
|
|
|
DISPLAY("Seed = %u\n", seed);
|
|
if (proba!=FUZ_compressibility_default) DISPLAY("Compressibility : %u%%\n", proba);
|
|
|
|
if (nbTests < testNb) nbTests = testNb;
|
|
|
|
if (testNb==0)
|
|
result = basicUnitTests(0, ((double)proba) / 100); /* constant seed for predictability */
|
|
if (!result)
|
|
result = fuzzerTests(seed, nbTests, testNb, maxDuration, ((double)proba) / 100);
|
|
if (mainPause) {
|
|
int unused;
|
|
DISPLAY("Press Enter \n");
|
|
unused = getchar();
|
|
(void)unused;
|
|
}
|
|
return result;
|
|
}
|