added zstreamtest
diff --git a/programs/zstreamtest.c b/programs/zstreamtest.c
new file mode 100644
index 0000000..7ef58fe
--- /dev/null
+++ b/programs/zstreamtest.c
@@ -0,0 +1,658 @@
+/*
+ Fuzzer test tool for zstd streaming API
+ Copyright (C) Yann Collet 2016
+
+ GPL v2 License
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License along
+ with this program; if not, write to the Free Software Foundation, Inc.,
+ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+ You can contact the author at :
+ - ZSTD homepage : https://www.zstd.net/
+*/
+
+/*-************************************
+* Compiler specific
+**************************************/
+#ifdef _MSC_VER /* Visual Studio */
+# define _CRT_SECURE_NO_WARNINGS /* fgets */
+# pragma warning(disable : 4127) /* disable: C4127: conditional expression is constant */
+# pragma warning(disable : 4146) /* disable: C4146: minus unsigned expression */
+#endif
+
+
+/*-************************************
+* Includes
+**************************************/
+#include <stdlib.h> /* free */
+#include <stdio.h> /* fgets, sscanf */
+#include <sys/timeb.h> /* timeb */
+#include <string.h> /* strcmp */
+#include "mem.h"
+#define ZSTD_STATIC_LINKING_ONLY /* ZSTD_maxCLevel */
+#include "zstd.h" /* ZSTD_compressBound */
+#include "datagen.h" /* RDG_genBuffer */
+#define XXH_STATIC_LINKING_ONLY
+#include "xxhash.h" /* XXH64_* */
+
+
+/*-************************************
+* Constants
+**************************************/
+#define KB *(1U<<10)
+#define MB *(1U<<20)
+#define GB *(1U<<30)
+
+static const U32 nbTestsDefault = 10000;
+#define COMPRESSIBLE_NOISE_LENGTH (10 MB)
+#define FUZ_COMPRESSIBILITY_DEFAULT 50
+static const U32 prime1 = 2654435761U;
+static const U32 prime2 = 2246822519U;
+
+
+
+/*-************************************
+* Display Macros
+**************************************/
+#define DISPLAY(...) fprintf(stderr, __VA_ARGS__)
+#define DISPLAYLEVEL(l, ...) if (g_displayLevel>=l) { DISPLAY(__VA_ARGS__); }
+static U32 g_displayLevel = 2;
+
+#define DISPLAYUPDATE(l, ...) if (g_displayLevel>=l) { \
+ if ((FUZ_GetMilliSpan(g_displayTime) > g_refreshRate) || (g_displayLevel>=4)) \
+ { g_displayTime = FUZ_GetMilliStart(); DISPLAY(__VA_ARGS__); \
+ if (g_displayLevel>=4) fflush(stdout); } }
+static const U32 g_refreshRate = 150;
+static U32 g_displayTime = 0;
+
+static U32 g_testTime = 0;
+
+
+/*-*******************************************************
+* Fuzzer functions
+*********************************************************/
+#define MAX(a,b) ((a)>(b)?(a):(b))
+
+static U32 FUZ_GetMilliStart(void)
+{
+ struct timeb tb;
+ U32 nCount;
+ ftime( &tb );
+ nCount = (U32) (((tb.time & 0xFFFFF) * 1000) + tb.millitm);
+ return nCount;
+}
+
+
+static U32 FUZ_GetMilliSpan(U32 nTimeStart)
+{
+ U32 const nCurrent = FUZ_GetMilliStart();
+ U32 nSpan = nCurrent - nTimeStart;
+ if (nTimeStart > nCurrent)
+ nSpan += 0x100000 * 1000;
+ return nSpan;
+}
+
+/*! FUZ_rand() :
+ @return : a 27 bits random value, from a 32-bits `seed`.
+ `seed` is also modified */
+# define FUZ_rotl32(x,r) ((x << r) | (x >> (32 - r)))
+unsigned int FUZ_rand(unsigned int* seedPtr)
+{
+ U32 rand32 = *seedPtr;
+ rand32 *= prime1;
+ rand32 += prime2;
+ rand32 = FUZ_rotl32(rand32, 13);
+ *seedPtr = rand32;
+ return rand32 >> 5;
+}
+
+
+/*
+static unsigned FUZ_highbit32(U32 v32)
+{
+ unsigned nbBits = 0;
+ if (v32==0) return 0;
+ for ( ; v32 ; v32>>=1) nbBits++;
+ return nbBits;
+}
+*/
+
+static void* allocFunction(void* opaque, size_t size)
+{
+ void* address = malloc(size);
+ (void)opaque;
+ return address;
+}
+
+static void freeFunction(void* opaque, void* address)
+{
+ (void)opaque;
+ free(address);
+}
+
+static int basicUnitTests(U32 seed, double compressibility, ZSTD_customMem customMem)
+{
+ int testResult = 0;
+ size_t CNBufferSize = COMPRESSIBLE_NOISE_LENGTH;
+ void* CNBuffer = malloc(CNBufferSize);
+ size_t const skippableFrameSize = 11;
+ size_t const compressedBufferSize = (8 + skippableFrameSize) + ZSTD_compressBound(COMPRESSIBLE_NOISE_LENGTH);
+ void* compressedBuffer = malloc(compressedBufferSize);
+ size_t const decodedBufferSize = CNBufferSize;
+ void* decodedBuffer = malloc(decodedBufferSize);
+ size_t cSize;
+ U32 testNb=0;
+ ZSTD_CStream* zc = ZSTD_createCStream_advanced(customMem);
+ ZSTD_DStream* zd = ZSTD_createDStream_advanced(customMem);
+ ZSTD_rCursor rCursor;
+ ZSTD_wCursor wCursor;
+
+ /* Create compressible test buffer */
+ if (!CNBuffer || !compressedBuffer || !decodedBuffer || !zc || !zd) {
+ DISPLAY("Not enough memory, aborting\n");
+ goto _output_error;
+ }
+ RDG_genBuffer(CNBuffer, CNBufferSize, compressibility, 0., seed);
+
+ /* generate skippable frame */
+ MEM_writeLE32(compressedBuffer, ZSTD_MAGIC_SKIPPABLE_START);
+ MEM_writeLE32(((char*)compressedBuffer)+4, (U32)skippableFrameSize);
+ cSize = skippableFrameSize + 8;
+
+ /* Basic compression test */
+ DISPLAYLEVEL(4, "test%3i : compress %u bytes : ", testNb++, COMPRESSIBLE_NOISE_LENGTH);
+ ZSTD_initCStream_usingDict(zc, CNBuffer, 128 KB, 1);
+ wCursor.ptr = (char*)(compressedBuffer)+cSize;
+ wCursor.size = compressedBufferSize;
+ wCursor.nbBytesWritten = 0;
+ rCursor.ptr = CNBuffer;
+ rCursor.size = CNBufferSize;
+ { size_t const r = ZSTD_compressStream(zc, &wCursor, &rCursor);
+ if (ZSTD_isError(r)) goto _output_error; }
+ if (rCursor.size != 0) goto _output_error; /* entire input should be consumed */
+ { size_t const r = ZSTD_endStream(zc, &wCursor);
+ if (r != 0) goto _output_error; } /*< error, or some data not flushed */
+ cSize += wCursor.nbBytesWritten;
+ DISPLAYLEVEL(4, "OK (%u bytes : %.2f%%)\n", (U32)cSize, (double)cSize/COMPRESSIBLE_NOISE_LENGTH*100);
+
+ /* skippable frame test */
+ DISPLAYLEVEL(4, "test%3i : decompress skippable frame : ", testNb++);
+ ZSTD_initDStream_usingDict(zd, CNBuffer, 128 KB);
+ rCursor.ptr = compressedBuffer;
+ rCursor.size = cSize;
+ wCursor.ptr = decodedBuffer;
+ wCursor.size = CNBufferSize;
+ wCursor.nbBytesWritten = 0;
+ { size_t const r = ZSTD_decompressStream(zd, &wCursor, &rCursor);
+ if (r != 0) goto _output_error; }
+ if (wCursor.nbBytesWritten != 0) goto _output_error; /* skippable frame len is 0 */
+ DISPLAYLEVEL(4, "OK \n");
+
+ /* Basic decompression test */
+ DISPLAYLEVEL(4, "test%3i : decompress %u bytes : ", testNb++, COMPRESSIBLE_NOISE_LENGTH);
+ ZSTD_initDStream_usingDict(zd, CNBuffer, 128 KB);
+ { size_t const r = ZSTD_decompressStream(zd, &wCursor, &rCursor);
+ if (r != 0) goto _output_error; } /* should reach end of frame == 0; otherwise, some data left, or an error */
+ if (wCursor.nbBytesWritten != CNBufferSize) goto _output_error; /* should regenerate the same amount */
+ if (rCursor.size != 0) goto _output_error; /* should have read the entire frame */
+ DISPLAYLEVEL(4, "OK \n");
+
+ /* check regenerated data is byte exact */
+ DISPLAYLEVEL(4, "test%3i : check decompressed result : ", testNb++);
+ { size_t i;
+ for (i=0; i<CNBufferSize; i++) {
+ if (((BYTE*)decodedBuffer)[i] != ((BYTE*)CNBuffer)[i]) goto _output_error;
+ } }
+ DISPLAYLEVEL(4, "OK \n");
+
+ /* Byte-by-byte decompression test */
+ DISPLAYLEVEL(4, "test%3i : decompress byte-by-byte : ", testNb++);
+ { size_t r = 1;
+ ZSTD_initDStream_usingDict(zd, CNBuffer, 128 KB);
+ rCursor.ptr = compressedBuffer;
+ wCursor.ptr = decodedBuffer;
+ wCursor.nbBytesWritten = 0;
+ while (r) { /* skippable frame */
+ rCursor.size = 1;
+ wCursor.size = 1;
+ r = ZSTD_decompressStream(zd, &wCursor, &rCursor);
+ if (ZSTD_isError(r)) goto _output_error;
+ }
+ ZSTD_initDStream_usingDict(zd, CNBuffer, 128 KB);
+ r=1;
+ while (r) { /* normal frame */
+ rCursor.size = 1;
+ wCursor.size = 1;
+ r = ZSTD_decompressStream(zd, &wCursor, &rCursor);
+ if (ZSTD_isError(r)) goto _output_error;
+ }
+ }
+ if (wCursor.nbBytesWritten != CNBufferSize) goto _output_error; /* should regenerate the same amount */
+ if ((size_t)(rCursor.ptr - compressedBuffer) != cSize) goto _output_error; /* should have read the entire frame */
+ DISPLAYLEVEL(4, "OK \n");
+
+ /* check regenerated data is byte exact */
+ DISPLAYLEVEL(4, "test%3i : check decompressed result : ", testNb++);
+ { size_t i;
+ for (i=0; i<CNBufferSize; i++) {
+ if (((BYTE*)decodedBuffer)[i] != ((BYTE*)CNBuffer)[i]) goto _output_error;;
+ } }
+ DISPLAYLEVEL(4, "OK \n");
+
+_end:
+ ZSTD_freeCStream(zc);
+ ZSTD_freeDStream(zd);
+ 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);
+}
+
+#define MIN(a,b) ( (a) < (b) ? (a) : (b) )
+
+#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, double compressibility)
+{
+ static const U32 maxSrcLog = 24;
+ static const U32 maxSampleLog = 19;
+ BYTE* cNoiseBuffer[5];
+ size_t srcBufferSize = (size_t)1<<maxSrcLog;
+ BYTE* copyBuffer;
+ size_t copyBufferSize= srcBufferSize + (1<<maxSampleLog);
+ BYTE* cBuffer;
+ size_t cBufferSize = ZSTD_compressBound(srcBufferSize);
+ BYTE* dstBuffer;
+ size_t dstBufferSize = srcBufferSize;
+ U32 result = 0;
+ U32 testNb = 0;
+ U32 coreSeed = seed;
+ ZSTD_CStream* zc;
+ ZSTD_DStream* zd;
+ U32 startTime = FUZ_GetMilliStart();
+
+ /* allocations */
+ zc = ZSTD_createCStream();
+ zd = ZSTD_createDStream();
+ 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);
+ copyBuffer= (BYTE*)malloc (copyBufferSize);
+ dstBuffer = (BYTE*)malloc (dstBufferSize);
+ cBuffer = (BYTE*)malloc (cBufferSize);
+ CHECK (!cNoiseBuffer[0] || !cNoiseBuffer[1] || !cNoiseBuffer[2] || !cNoiseBuffer[3] || !cNoiseBuffer[4] ||
+ !copyBuffer || !dstBuffer || !cBuffer || !zc || !zd,
+ "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 */
+ memset(copyBuffer, 0x65, copyBufferSize); /* make copyBuffer considered initialized */
+
+ /* catch up testNb */
+ for (testNb=1; testNb < startTest; testNb++)
+ FUZ_rand(&coreSeed);
+
+ /* test loop */
+ for ( ; (testNb <= nbTests) || (FUZ_GetMilliSpan(startTime) < g_testTime) ; testNb++ ) {
+ U32 lseed;
+ const BYTE* srcBuffer;
+ const BYTE* dict;
+ size_t maxTestSize, dictSize;
+ size_t cSize, totalTestSize, totalCSize, totalGenSize;
+ U32 n, nbChunks;
+ XXH64_state_t xxhState;
+ U64 crcOrig;
+
+ /* init */
+ DISPLAYUPDATE(2, "\r%6u", testNb);
+ if (nbTests >= testNb) DISPLAYUPDATE(2, "/%6u ", nbTests);
+ FUZ_rand(&coreSeed);
+ lseed = coreSeed ^ prime1;
+
+ /* states full reset (unsynchronized) */
+ /* some issues only happen when reusing states in a specific sequence of parameters */
+ if ((FUZ_rand(&lseed) & 0xFF) == 131) { ZSTD_freeCStream(zc); zc = ZSTD_createCStream(); }
+ if ((FUZ_rand(&lseed) & 0xFF) == 132) { ZSTD_freeDStream(zd); zd = ZSTD_createDStream(); }
+
+ /* 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];
+ }
+
+ /* compression init */
+ { U32 const testLog = FUZ_rand(&lseed) % maxSrcLog;
+ U32 const cLevel = (FUZ_rand(&lseed) % (ZSTD_maxCLevel() - (testLog/3))) + 1;
+ maxTestSize = FUZ_rLogLength(&lseed, testLog);
+ dictSize = (FUZ_rand(&lseed)==1) ? FUZ_randomLength(&lseed, maxSampleLog) : 0;
+ /* random dictionary selection */
+ { size_t const dictStart = FUZ_rand(&lseed) % (srcBufferSize - dictSize);
+ dict = srcBuffer + dictStart;
+ }
+ { ZSTD_parameters params = ZSTD_getParams(cLevel, 0, dictSize);
+ params.fParams.checksumFlag = FUZ_rand(&lseed) & 1;
+ params.fParams.noDictIDFlag = FUZ_rand(&lseed) & 1;
+ { size_t const initError = ZSTD_initCStream_advanced(zc, dict, dictSize, params, 0);
+ CHECK (ZSTD_isError(initError),"init error : %s", ZSTD_getErrorName(initError));
+ } } }
+
+ /* multi-segments compression test */
+ XXH64_reset(&xxhState, 0);
+ nbChunks = (FUZ_rand(&lseed) & 127) + 2;
+ { ZSTD_wCursor wCursor = { cBuffer, cBufferSize, 0 } ;
+ for (n=0, cSize=0, totalTestSize=0 ; (n<nbChunks) && (totalTestSize < maxTestSize) ; n++) {
+ /* compress random chunk into random size dst buffer */
+ { size_t readChunkSize = FUZ_randomLength(&lseed, maxSampleLog);
+ size_t const srcStart = FUZ_rand(&lseed) % (srcBufferSize - readChunkSize);
+ size_t const randomDstSize = FUZ_randomLength(&lseed, maxSampleLog);
+ size_t const dstBuffSize = MIN(cBufferSize - cSize, randomDstSize);
+ ZSTD_rCursor rCursor = { srcBuffer+srcStart, readChunkSize };
+ wCursor.size = dstBuffSize;
+
+ { size_t const compressionError = ZSTD_compressStream(zc, &wCursor, &rCursor);
+ CHECK (ZSTD_isError(compressionError), "compression error : %s", ZSTD_getErrorName(compressionError)); }
+ readChunkSize -= rCursor.size;
+
+ XXH64_update(&xxhState, srcBuffer+srcStart, readChunkSize);
+ memcpy(copyBuffer+totalTestSize, srcBuffer+srcStart, readChunkSize);
+ totalTestSize += readChunkSize;
+ }
+
+ /* random flush operation, to mess around */
+ if ((FUZ_rand(&lseed) & 15) == 0) {
+ size_t const randomDstSize = FUZ_randomLength(&lseed, maxSampleLog);
+ size_t const dstBuffSize = MIN(cBufferSize - cSize, randomDstSize);
+ wCursor.size = dstBuffSize;
+ { size_t const flushError = ZSTD_flushStream(zc, &wCursor);
+ CHECK (ZSTD_isError(flushError), "flush error : %s", ZSTD_getErrorName(flushError));
+ } } }
+
+ /* final frame epilogue */
+ { size_t remainingToFlush = (size_t)(-1);
+ while (remainingToFlush) {
+ size_t const randomDstSize = FUZ_randomLength(&lseed, maxSampleLog);
+ size_t const adjustedDstSize = MIN(cBufferSize - cSize, randomDstSize);
+ U32 const enoughDstSize = (adjustedDstSize >= remainingToFlush);
+ wCursor.size = adjustedDstSize;
+ remainingToFlush = ZSTD_endStream(zc, &wCursor);
+ CHECK (ZSTD_isError(remainingToFlush), "flush error : %s", ZSTD_getErrorName(remainingToFlush));
+ CHECK (enoughDstSize && remainingToFlush, "ZSTD_endStream() not fully flushed (%u remaining), but enough space available", (U32)remainingToFlush);
+ } }
+ crcOrig = XXH64_digest(&xxhState);
+ cSize = wCursor.nbBytesWritten;
+ }
+
+ /* multi - fragments decompression test */
+ ZSTD_initDStream_usingDict(zd, dict, dictSize);
+ { size_t decompressionResult = 1;
+ ZSTD_rCursor rCursor = { cBuffer, cSize };
+ ZSTD_wCursor wCursor = { dstBuffer, dstBufferSize, 0 };
+ for (totalCSize = 0, totalGenSize = 0 ; decompressionResult ; ) {
+ size_t const readCSrcSize = FUZ_randomLength(&lseed, maxSampleLog);
+ size_t const randomDstSize = FUZ_randomLength(&lseed, maxSampleLog);
+ size_t const dstBuffSize = MIN(dstBufferSize - totalGenSize, randomDstSize);
+ rCursor.size = readCSrcSize;
+ wCursor.size = dstBuffSize;
+ decompressionResult = ZSTD_decompressStream(zd, &wCursor, &rCursor);
+ CHECK (ZSTD_isError(decompressionResult), "decompression error : %s", ZSTD_getErrorName(decompressionResult));
+ totalCSize += readCSrcSize - rCursor.size;
+ }
+ CHECK (decompressionResult != 0, "frame not fully decoded");
+ CHECK (wCursor.nbBytesWritten != totalTestSize, "decompressed data : wrong size")
+ CHECK (totalCSize != cSize, "compressed data should be fully read")
+ { U64 const crcDest = XXH64(dstBuffer, totalTestSize, 0);
+ if (crcDest!=crcOrig) findDiff(copyBuffer, dstBuffer, totalTestSize);
+ CHECK (crcDest!=crcOrig, "decompressed data corrupted");
+ } }
+
+ /*===== noisy/erroneous src decompression test =====*/
+
+ /* add some noise */
+ { U32 const nbNoiseChunks = (FUZ_rand(&lseed) & 7) + 2;
+ U32 nn; for (nn=0; nn<nbNoiseChunks; nn++) {
+ size_t const randomNoiseSize = FUZ_randomLength(&lseed, maxSampleLog);
+ size_t const noiseSize = MIN((cSize/3) , randomNoiseSize);
+ size_t const noiseStart = FUZ_rand(&lseed) % (srcBufferSize - noiseSize);
+ size_t const cStart = FUZ_rand(&lseed) % (cSize - noiseSize);
+ memcpy(cBuffer+cStart, srcBuffer+noiseStart, noiseSize);
+ } }
+
+ /* try decompression on noisy data */
+ ZSTD_initDStream(zd);
+ { ZSTD_rCursor rCursor = { cBuffer, cSize };
+ ZSTD_wCursor wCursor = { dstBuffer, dstBufferSize, 0 };
+ while (wCursor.nbBytesWritten < dstBufferSize) {
+ size_t const randomCSrcSize = FUZ_randomLength(&lseed, maxSampleLog);
+ size_t const randomDstSize = FUZ_randomLength(&lseed, maxSampleLog);
+ size_t const adjustedDstSize = MIN(dstBufferSize - wCursor.nbBytesWritten, randomDstSize);
+ wCursor.size = adjustedDstSize;
+ rCursor.size = randomCSrcSize;
+ { size_t const decompressError = ZSTD_decompressStream(zd, &wCursor, &rCursor);
+ if (ZSTD_isError(decompressError)) break; /* error correctly detected */
+ } } } }
+ DISPLAY("\r%u fuzzer tests completed \n", testNb);
+
+_cleanup:
+ ZSTD_freeCStream(zc);
+ ZSTD_freeDStream(zd);
+ free(cNoiseBuffer[0]);
+ free(cNoiseBuffer[1]);
+ free(cNoiseBuffer[2]);
+ free(cNoiseBuffer[3]);
+ free(cNoiseBuffer[4]);
+ free(copyBuffer);
+ free(cBuffer);
+ free(dstBuffer);
+ 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:%i%%)\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;
+ int proba = FUZ_COMPRESSIBILITY_DEFAULT;
+ int result=0;
+ U32 mainPause = 0;
+ const char* programName = argv[0];
+ ZSTD_customMem customMem = { allocFunction, freeFunction, NULL };
+ ZSTD_customMem customNULL = { NULL, NULL, NULL };
+
+ /* Check command line */
+ for(argNb=1; argNb<argc; argNb++) {
+ const char* argument = argv[argNb];
+ if(!argument) continue; /* Protection if argument empty */
+
+ /* Parsing 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++;
+ nbTests=0; g_testTime=0;
+ while ((*argument>='0') && (*argument<='9')) {
+ nbTests *= 10;
+ nbTests += *argument - '0';
+ argument++;
+ }
+ break;
+
+ case 'T':
+ argument++;
+ nbTests=0; g_testTime=0;
+ while ((*argument>='0') && (*argument<='9')) {
+ g_testTime *= 10;
+ g_testTime += *argument - '0';
+ argument++;
+ }
+ if (*argument=='m') g_testTime *=60, argument++;
+ if (*argument=='n') argument++;
+ g_testTime *= 1000;
+ 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<0) proba=0;
+ if (proba>100) proba=100;
+ break;
+
+ default:
+ return FUZ_usage(programName);
+ }
+ } } } /* for(argNb=1; argNb<argc; argNb++) */
+
+ /* Get Seed */
+ DISPLAY("Starting zstd_buffered tester (%i-bits, %s)\n", (int)(sizeof(size_t)*8), ZSTD_VERSION_STRING);
+
+ if (!seedset) seed = FUZ_GetMilliStart() % 10000;
+ DISPLAY("Seed = %u\n", seed);
+ if (proba!=FUZ_COMPRESSIBILITY_DEFAULT) DISPLAY("Compressibility : %i%%\n", proba);
+
+ if (nbTests<=0) nbTests=1;
+
+ if (testNb==0) {
+ result = basicUnitTests(0, ((double)proba) / 100, customNULL); /* constant seed for predictability */
+ if (!result) {
+ DISPLAYLEVEL(4, "Unit tests using customMem :\n")
+ result = basicUnitTests(0, ((double)proba) / 100, customMem); /* use custom memory allocation functions */
+ } }
+
+ if (!result)
+ result = fuzzerTests(seed, nbTests, testNb, ((double)proba) / 100);
+
+ if (mainPause) {
+ int unused;
+ DISPLAY("Press Enter \n");
+ unused = getchar();
+ (void)unused;
+ }
+ return result;
+}