Index: head/contrib/zstd/programs/fileio.c =================================================================== --- head/contrib/zstd/programs/fileio.c (revision 316979) +++ head/contrib/zstd/programs/fileio.c (revision 316980) @@ -1,1200 +1,1200 @@ /** * Copyright (c) 2016-present, Yann Collet, Facebook, Inc. * All rights reserved. * * This source code is licensed under the BSD-style license found in the * LICENSE file in the root directory of this source tree. An additional grant * of patent rights can be found in the PATENTS file in the same directory. */ /* ************************************* * Compiler Options ***************************************/ #ifdef _MSC_VER /* Visual */ # pragma warning(disable : 4127) /* disable: C4127: conditional expression is constant */ # pragma warning(disable : 4204) /* non-constant aggregate initializer */ #endif #if defined(__MINGW32__) && !defined(_POSIX_SOURCE) # define _POSIX_SOURCE 1 /* disable %llu warnings with MinGW on Windows */ #endif /*-************************************* * Includes ***************************************/ #include "platform.h" /* Large Files support, SET_BINARY_MODE */ #include "util.h" /* UTIL_getFileSize */ #include /* fprintf, fopen, fread, _fileno, stdin, stdout */ #include /* malloc, free */ #include /* strcmp, strlen */ #include /* clock */ #include /* errno */ #include "mem.h" #include "fileio.h" #define ZSTD_STATIC_LINKING_ONLY /* ZSTD_magicNumber, ZSTD_frameHeaderSize_max */ #include "zstd.h" #ifdef ZSTD_MULTITHREAD # include "zstdmt_compress.h" #endif #if defined(ZSTD_GZCOMPRESS) || defined(ZSTD_GZDECOMPRESS) # include # if !defined(z_const) # define z_const # endif #endif #if defined(ZSTD_LZMACOMPRESS) || defined(ZSTD_LZMADECOMPRESS) # include #endif /*-************************************* * Constants ***************************************/ #define KB *(1<<10) #define MB *(1<<20) #define GB *(1U<<30) #define _1BIT 0x01 #define _2BITS 0x03 #define _3BITS 0x07 #define _4BITS 0x0F #define _6BITS 0x3F #define _8BITS 0xFF #define BLOCKSIZE (128 KB) #define ROLLBUFFERSIZE (BLOCKSIZE*8*64) #define FIO_FRAMEHEADERSIZE 5 /* as a define, because needed to allocated table on stack */ #define FSE_CHECKSUM_SEED 0 #define CACHELINE 64 #define MAX_DICT_SIZE (8 MB) /* protection against large input (attack scenario) */ #define FNSPACE 30 /*-************************************* * Macros ***************************************/ #define DISPLAY(...) fprintf(stderr, __VA_ARGS__) #define DISPLAYLEVEL(l, ...) { if (g_displayLevel>=l) { DISPLAY(__VA_ARGS__); } } static U32 g_displayLevel = 2; /* 0 : no display; 1: errors; 2 : + result + interaction + warnings; 3 : + progression; 4 : + information */ void FIO_setNotificationLevel(unsigned level) { g_displayLevel=level; } #define DISPLAYUPDATE(l, ...) { if (g_displayLevel>=l) { \ if ((clock() - g_time > refreshRate) || (g_displayLevel>=4)) \ { g_time = clock(); DISPLAY(__VA_ARGS__); \ if (g_displayLevel>=4) fflush(stdout); } } } static const clock_t refreshRate = CLOCKS_PER_SEC * 15 / 100; static clock_t g_time = 0; #define MIN(a,b) ((a) < (b) ? (a) : (b)) /* ************************************************************ * Avoid fseek()'s 2GiB barrier with MSVC, MacOS, *BSD, MinGW ***************************************************************/ #if defined(_MSC_VER) && _MSC_VER >= 1400 # define LONG_SEEK _fseeki64 #elif !defined(__64BIT__) && (PLATFORM_POSIX_VERSION >= 200112L) /* No point defining Large file for 64 bit */ # define LONG_SEEK fseeko #elif defined(__MINGW32__) && !defined(__STRICT_ANSI__) && !defined(__NO_MINGW_LFS) && defined(__MSVCRT__) # define LONG_SEEK fseeko64 #elif defined(_WIN32) && !defined(__DJGPP__) # include static int LONG_SEEK(FILE* file, __int64 offset, int origin) { LARGE_INTEGER off; DWORD method; off.QuadPart = offset; if (origin == SEEK_END) method = FILE_END; else if (origin == SEEK_CUR) method = FILE_CURRENT; else method = FILE_BEGIN; if (SetFilePointerEx((HANDLE) _get_osfhandle(_fileno(file)), off, NULL, method)) return 0; else return -1; } #else # define LONG_SEEK fseek #endif /*-************************************* * Local Parameters - Not thread safe ***************************************/ static FIO_compressionType_t g_compressionType = FIO_zstdCompression; void FIO_setCompressionType(FIO_compressionType_t compressionType) { g_compressionType = compressionType; } static U32 g_overwrite = 0; void FIO_overwriteMode(void) { g_overwrite=1; } static U32 g_sparseFileSupport = 1; /* 0 : no sparse allowed; 1: auto (file yes, stdout no); 2: force sparse */ void FIO_setSparseWrite(unsigned sparse) { g_sparseFileSupport=sparse; } static U32 g_dictIDFlag = 1; void FIO_setDictIDFlag(unsigned dictIDFlag) { g_dictIDFlag = dictIDFlag; } static U32 g_checksumFlag = 1; void FIO_setChecksumFlag(unsigned checksumFlag) { g_checksumFlag = checksumFlag; } -static U32 g_removeSrcFile = 0; +static U32 g_removeSrcFile = 1; void FIO_setRemoveSrcFile(unsigned flag) { g_removeSrcFile = (flag>0); } static U32 g_memLimit = 0; void FIO_setMemLimit(unsigned memLimit) { g_memLimit = memLimit; } static U32 g_nbThreads = 1; void FIO_setNbThreads(unsigned nbThreads) { #ifndef ZSTD_MULTITHREAD if (nbThreads > 1) DISPLAYLEVEL(2, "Note : multi-threading is disabled \n"); #endif g_nbThreads = nbThreads; } static U32 g_blockSize = 0; void FIO_setBlockSize(unsigned blockSize) { if (blockSize && g_nbThreads==1) DISPLAYLEVEL(2, "Setting block size is useless in single-thread mode \n"); #ifdef ZSTD_MULTITHREAD if (blockSize-1 < ZSTDMT_SECTION_SIZE_MIN-1) /* intentional underflow */ DISPLAYLEVEL(2, "Note : minimum block size is %u KB \n", (ZSTDMT_SECTION_SIZE_MIN>>10)); #endif g_blockSize = blockSize; } #define FIO_OVERLAP_LOG_NOTSET 9999 static U32 g_overlapLog = FIO_OVERLAP_LOG_NOTSET; void FIO_setOverlapLog(unsigned overlapLog){ if (overlapLog && g_nbThreads==1) DISPLAYLEVEL(2, "Setting overlapLog is useless in single-thread mode \n"); g_overlapLog = overlapLog; } /*-************************************* * Exceptions ***************************************/ #ifndef DEBUG # define DEBUG 0 #endif #define DEBUGOUTPUT(...) if (DEBUG) DISPLAY(__VA_ARGS__); #define EXM_THROW(error, ...) \ { \ DEBUGOUTPUT("Error defined at %s, line %i : \n", __FILE__, __LINE__); \ DISPLAYLEVEL(1, "Error %i : ", error); \ DISPLAYLEVEL(1, __VA_ARGS__); \ DISPLAYLEVEL(1, " \n"); \ exit(error); \ } /*-************************************* * Functions ***************************************/ /** FIO_openSrcFile() : * condition : `dstFileName` must be non-NULL. * @result : FILE* to `dstFileName`, or NULL if it fails */ static FILE* FIO_openSrcFile(const char* srcFileName) { FILE* f; if (!strcmp (srcFileName, stdinmark)) { DISPLAYLEVEL(4,"Using stdin for input\n"); f = stdin; SET_BINARY_MODE(stdin); } else { if (!UTIL_isRegFile(srcFileName)) { DISPLAYLEVEL(1, "zstd: %s is not a regular file -- ignored \n", srcFileName); return NULL; } f = fopen(srcFileName, "rb"); if ( f==NULL ) DISPLAYLEVEL(1, "zstd: %s: %s \n", srcFileName, strerror(errno)); } return f; } /** FIO_openDstFile() : * condition : `dstFileName` must be non-NULL. * @result : FILE* to `dstFileName`, or NULL if it fails */ static FILE* FIO_openDstFile(const char* dstFileName) { FILE* f; if (!strcmp (dstFileName, stdoutmark)) { DISPLAYLEVEL(4,"Using stdout for output\n"); f = stdout; SET_BINARY_MODE(stdout); if (g_sparseFileSupport==1) { g_sparseFileSupport = 0; DISPLAYLEVEL(4, "Sparse File Support is automatically disabled on stdout ; try --sparse \n"); } } else { if (!g_overwrite && strcmp (dstFileName, nulmark)) { /* Check if destination file already exists */ f = fopen( dstFileName, "rb" ); if (f != 0) { /* dest file exists, prompt for overwrite authorization */ fclose(f); if (g_displayLevel <= 1) { /* No interaction possible */ DISPLAY("zstd: %s already exists; not overwritten \n", dstFileName); return NULL; } DISPLAY("zstd: %s already exists; do you wish to overwrite (y/N) ? ", dstFileName); { int ch = getchar(); if ((ch!='Y') && (ch!='y')) { DISPLAY(" not overwritten \n"); return NULL; } while ((ch!=EOF) && (ch!='\n')) ch = getchar(); /* flush rest of input line */ } } } f = fopen( dstFileName, "wb" ); if (f==NULL) DISPLAYLEVEL(1, "zstd: %s: %s\n", dstFileName, strerror(errno)); } return f; } /*! FIO_loadFile() : * creates a buffer, pointed by `*bufferPtr`, * loads `filename` content into it, * up to MAX_DICT_SIZE bytes. * @return : loaded size */ static size_t FIO_loadFile(void** bufferPtr, const char* fileName) { FILE* fileHandle; U64 fileSize; *bufferPtr = NULL; if (fileName == NULL) return 0; DISPLAYLEVEL(4,"Loading %s as dictionary \n", fileName); fileHandle = fopen(fileName, "rb"); if (fileHandle==0) EXM_THROW(31, "zstd: %s: %s", fileName, strerror(errno)); fileSize = UTIL_getFileSize(fileName); if (fileSize > MAX_DICT_SIZE) { int seekResult; if (fileSize > 1 GB) EXM_THROW(32, "Dictionary file %s is too large", fileName); /* avoid extreme cases */ DISPLAYLEVEL(2,"Dictionary %s is too large : using last %u bytes only \n", fileName, (U32)MAX_DICT_SIZE); seekResult = fseek(fileHandle, (long int)(fileSize-MAX_DICT_SIZE), SEEK_SET); /* use end of file */ if (seekResult != 0) EXM_THROW(33, "zstd: %s: %s", fileName, strerror(errno)); fileSize = MAX_DICT_SIZE; } *bufferPtr = malloc((size_t)fileSize); if (*bufferPtr==NULL) EXM_THROW(34, "zstd: %s", strerror(errno)); { size_t const readSize = fread(*bufferPtr, 1, (size_t)fileSize, fileHandle); if (readSize!=fileSize) EXM_THROW(35, "Error reading dictionary file %s", fileName); } fclose(fileHandle); return (size_t)fileSize; } #ifndef ZSTD_NOCOMPRESS /*-********************************************************************** * Compression ************************************************************************/ typedef struct { FILE* srcFile; FILE* dstFile; void* srcBuffer; size_t srcBufferSize; void* dstBuffer; size_t dstBufferSize; #ifdef ZSTD_MULTITHREAD ZSTDMT_CCtx* cctx; #else ZSTD_CStream* cctx; #endif } cRess_t; static cRess_t FIO_createCResources(const char* dictFileName, int cLevel, U64 srcSize, int srcRegFile, ZSTD_compressionParameters* comprParams) { cRess_t ress; memset(&ress, 0, sizeof(ress)); #ifdef ZSTD_MULTITHREAD ress.cctx = ZSTDMT_createCCtx(g_nbThreads); if (ress.cctx == NULL) EXM_THROW(30, "zstd: allocation error : can't create ZSTD_CStream"); if ((cLevel==ZSTD_maxCLevel()) && (g_overlapLog==FIO_OVERLAP_LOG_NOTSET)) ZSTDMT_setMTCtxParameter(ress.cctx, ZSTDMT_p_overlapSectionLog, 9); /* use complete window for overlap */ if (g_overlapLog != FIO_OVERLAP_LOG_NOTSET) ZSTDMT_setMTCtxParameter(ress.cctx, ZSTDMT_p_overlapSectionLog, g_overlapLog); #else ress.cctx = ZSTD_createCStream(); if (ress.cctx == NULL) EXM_THROW(30, "zstd: allocation error : can't create ZSTD_CStream"); #endif ress.srcBufferSize = ZSTD_CStreamInSize(); ress.srcBuffer = malloc(ress.srcBufferSize); ress.dstBufferSize = ZSTD_CStreamOutSize(); ress.dstBuffer = malloc(ress.dstBufferSize); if (!ress.srcBuffer || !ress.dstBuffer) EXM_THROW(31, "zstd: allocation error : not enough memory"); /* dictionary */ { void* dictBuffer; size_t const dictBuffSize = FIO_loadFile(&dictBuffer, dictFileName); if (dictFileName && (dictBuffer==NULL)) EXM_THROW(32, "zstd: allocation error : can't create dictBuffer"); { ZSTD_parameters params = ZSTD_getParams(cLevel, srcSize, dictBuffSize); params.fParams.contentSizeFlag = srcRegFile; params.fParams.checksumFlag = g_checksumFlag; params.fParams.noDictIDFlag = !g_dictIDFlag; if (comprParams->windowLog) params.cParams.windowLog = comprParams->windowLog; if (comprParams->chainLog) params.cParams.chainLog = comprParams->chainLog; if (comprParams->hashLog) params.cParams.hashLog = comprParams->hashLog; if (comprParams->searchLog) params.cParams.searchLog = comprParams->searchLog; if (comprParams->searchLength) params.cParams.searchLength = comprParams->searchLength; if (comprParams->targetLength) params.cParams.targetLength = comprParams->targetLength; if (comprParams->strategy) params.cParams.strategy = (ZSTD_strategy)(comprParams->strategy - 1); #ifdef ZSTD_MULTITHREAD { size_t const errorCode = ZSTDMT_initCStream_advanced(ress.cctx, dictBuffer, dictBuffSize, params, srcSize); if (ZSTD_isError(errorCode)) EXM_THROW(33, "Error initializing CStream : %s", ZSTD_getErrorName(errorCode)); ZSTDMT_setMTCtxParameter(ress.cctx, ZSTDMT_p_sectionSize, g_blockSize); #else { size_t const errorCode = ZSTD_initCStream_advanced(ress.cctx, dictBuffer, dictBuffSize, params, srcSize); if (ZSTD_isError(errorCode)) EXM_THROW(33, "Error initializing CStream : %s", ZSTD_getErrorName(errorCode)); #endif } } free(dictBuffer); } return ress; } static void FIO_freeCResources(cRess_t ress) { free(ress.srcBuffer); free(ress.dstBuffer); #ifdef ZSTD_MULTITHREAD ZSTDMT_freeCCtx(ress.cctx); #else ZSTD_freeCStream(ress.cctx); /* never fails */ #endif } #ifdef ZSTD_GZCOMPRESS static unsigned long long FIO_compressGzFrame(cRess_t* ress, const char* srcFileName, U64 const srcFileSize, int compressionLevel, U64* readsize) { unsigned long long inFileSize = 0, outFileSize = 0; z_stream strm; int ret; if (compressionLevel > Z_BEST_COMPRESSION) compressionLevel = Z_BEST_COMPRESSION; strm.zalloc = Z_NULL; strm.zfree = Z_NULL; strm.opaque = Z_NULL; ret = deflateInit2(&strm, compressionLevel, Z_DEFLATED, 15 /* maxWindowLogSize */ + 16 /* gzip only */, 8, Z_DEFAULT_STRATEGY); /* see http://www.zlib.net/manual.html */ if (ret != Z_OK) EXM_THROW(71, "zstd: %s: deflateInit2 error %d \n", srcFileName, ret); strm.next_in = 0; strm.avail_in = 0; strm.next_out = (Bytef*)ress->dstBuffer; strm.avail_out = (uInt)ress->dstBufferSize; while (1) { if (strm.avail_in == 0) { size_t const inSize = fread(ress->srcBuffer, 1, ress->srcBufferSize, ress->srcFile); if (inSize == 0) break; inFileSize += inSize; strm.next_in = (z_const unsigned char*)ress->srcBuffer; strm.avail_in = (uInt)inSize; } ret = deflate(&strm, Z_NO_FLUSH); if (ret != Z_OK) EXM_THROW(72, "zstd: %s: deflate error %d \n", srcFileName, ret); { size_t const decompBytes = ress->dstBufferSize - strm.avail_out; if (decompBytes) { if (fwrite(ress->dstBuffer, 1, decompBytes, ress->dstFile) != decompBytes) EXM_THROW(73, "Write error : cannot write to output file"); outFileSize += decompBytes; strm.next_out = (Bytef*)ress->dstBuffer; strm.avail_out = (uInt)ress->dstBufferSize; } } if (!srcFileSize) DISPLAYUPDATE(2, "\rRead : %u MB ==> %.2f%%", (U32)(inFileSize>>20), (double)outFileSize/inFileSize*100) else DISPLAYUPDATE(2, "\rRead : %u / %u MB ==> %.2f%%", (U32)(inFileSize>>20), (U32)(srcFileSize>>20), (double)outFileSize/inFileSize*100); } while (1) { ret = deflate(&strm, Z_FINISH); { size_t const decompBytes = ress->dstBufferSize - strm.avail_out; if (decompBytes) { if (fwrite(ress->dstBuffer, 1, decompBytes, ress->dstFile) != decompBytes) EXM_THROW(75, "Write error : cannot write to output file"); outFileSize += decompBytes; strm.next_out = (Bytef*)ress->dstBuffer; strm.avail_out = (uInt)ress->dstBufferSize; } } if (ret == Z_STREAM_END) break; if (ret != Z_BUF_ERROR) EXM_THROW(77, "zstd: %s: deflate error %d \n", srcFileName, ret); } ret = deflateEnd(&strm); if (ret != Z_OK) EXM_THROW(79, "zstd: %s: deflateEnd error %d \n", srcFileName, ret); *readsize = inFileSize; return outFileSize; } #endif #ifdef ZSTD_LZMACOMPRESS static unsigned long long FIO_compressLzmaFrame(cRess_t* ress, const char* srcFileName, U64 const srcFileSize, int compressionLevel, U64* readsize, int plain_lzma) { unsigned long long inFileSize = 0, outFileSize = 0; lzma_stream strm = LZMA_STREAM_INIT; lzma_action action = LZMA_RUN; lzma_ret ret; if (compressionLevel < 0) compressionLevel = 0; if (compressionLevel > 9) compressionLevel = 9; if (plain_lzma) { lzma_options_lzma opt_lzma; if (lzma_lzma_preset(&opt_lzma, compressionLevel)) EXM_THROW(71, "zstd: %s: lzma_lzma_preset error", srcFileName); ret = lzma_alone_encoder(&strm, &opt_lzma); /* LZMA */ if (ret != LZMA_OK) EXM_THROW(71, "zstd: %s: lzma_alone_encoder error %d", srcFileName, ret); } else { ret = lzma_easy_encoder(&strm, compressionLevel, LZMA_CHECK_CRC64); /* XZ */ if (ret != LZMA_OK) EXM_THROW(71, "zstd: %s: lzma_easy_encoder error %d", srcFileName, ret); } strm.next_in = 0; strm.avail_in = 0; strm.next_out = ress->dstBuffer; strm.avail_out = ress->dstBufferSize; while (1) { if (strm.avail_in == 0) { size_t const inSize = fread(ress->srcBuffer, 1, ress->srcBufferSize, ress->srcFile); if (inSize == 0) action = LZMA_FINISH; inFileSize += inSize; strm.next_in = ress->srcBuffer; strm.avail_in = inSize; } ret = lzma_code(&strm, action); if (ret != LZMA_OK && ret != LZMA_STREAM_END) EXM_THROW(72, "zstd: %s: lzma_code encoding error %d", srcFileName, ret); { size_t const compBytes = ress->dstBufferSize - strm.avail_out; if (compBytes) { if (fwrite(ress->dstBuffer, 1, compBytes, ress->dstFile) != compBytes) EXM_THROW(73, "Write error : cannot write to output file"); outFileSize += compBytes; strm.next_out = ress->dstBuffer; strm.avail_out = ress->dstBufferSize; } } if (!srcFileSize) DISPLAYUPDATE(2, "\rRead : %u MB ==> %.2f%%", (U32)(inFileSize>>20), (double)outFileSize/inFileSize*100) else DISPLAYUPDATE(2, "\rRead : %u / %u MB ==> %.2f%%", (U32)(inFileSize>>20), (U32)(srcFileSize>>20), (double)outFileSize/inFileSize*100); if (ret == LZMA_STREAM_END) break; } lzma_end(&strm); *readsize = inFileSize; return outFileSize; } #endif /*! FIO_compressFilename_internal() : * same as FIO_compressFilename_extRess(), with `ress.desFile` already opened. * @return : 0 : compression completed correctly, * 1 : missing or pb opening srcFileName */ static int FIO_compressFilename_internal(cRess_t ress, const char* dstFileName, const char* srcFileName, int compressionLevel) { FILE* const srcFile = ress.srcFile; FILE* const dstFile = ress.dstFile; U64 readsize = 0; U64 compressedfilesize = 0; U64 const fileSize = UTIL_getFileSize(srcFileName); switch (g_compressionType) { case FIO_zstdCompression: break; case FIO_gzipCompression: #ifdef ZSTD_GZCOMPRESS compressedfilesize = FIO_compressGzFrame(&ress, srcFileName, fileSize, compressionLevel, &readsize); #else (void)compressionLevel; EXM_THROW(20, "zstd: %s: file cannot be compressed as gzip (zstd compiled without ZSTD_GZCOMPRESS) -- ignored \n", srcFileName); #endif goto finish; case FIO_xzCompression: case FIO_lzmaCompression: #ifdef ZSTD_LZMACOMPRESS compressedfilesize = FIO_compressLzmaFrame(&ress, srcFileName, fileSize, compressionLevel, &readsize, g_compressionType==FIO_lzmaCompression); #else (void)compressionLevel; EXM_THROW(20, "zstd: %s: file cannot be compressed as xz/lzma (zstd compiled without ZSTD_LZMACOMPRESS) -- ignored \n", srcFileName); #endif goto finish; } /* init */ #ifdef ZSTD_MULTITHREAD { size_t const resetError = ZSTDMT_resetCStream(ress.cctx, fileSize); #else { size_t const resetError = ZSTD_resetCStream(ress.cctx, fileSize); #endif if (ZSTD_isError(resetError)) EXM_THROW(21, "Error initializing compression : %s", ZSTD_getErrorName(resetError)); } /* Main compression loop */ while (1) { /* Fill input Buffer */ size_t const inSize = fread(ress.srcBuffer, (size_t)1, ress.srcBufferSize, srcFile); if (inSize==0) break; readsize += inSize; { ZSTD_inBuffer inBuff = { ress.srcBuffer, inSize, 0 }; while (inBuff.pos != inBuff.size) { /* note : is there any possibility of endless loop ? for example, if outBuff is not large enough ? */ ZSTD_outBuffer outBuff= { ress.dstBuffer, ress.dstBufferSize, 0 }; #ifdef ZSTD_MULTITHREAD size_t const result = ZSTDMT_compressStream(ress.cctx, &outBuff, &inBuff); #else size_t const result = ZSTD_compressStream(ress.cctx, &outBuff, &inBuff); #endif if (ZSTD_isError(result)) EXM_THROW(23, "Compression error : %s ", ZSTD_getErrorName(result)); /* Write compressed stream */ if (outBuff.pos) { size_t const sizeCheck = fwrite(ress.dstBuffer, 1, outBuff.pos, dstFile); if (sizeCheck!=outBuff.pos) EXM_THROW(25, "Write error : cannot write compressed block into %s", dstFileName); compressedfilesize += outBuff.pos; } } } #ifdef ZSTD_MULTITHREAD if (!fileSize) DISPLAYUPDATE(2, "\rRead : %u MB", (U32)(readsize>>20)) else DISPLAYUPDATE(2, "\rRead : %u / %u MB", (U32)(readsize>>20), (U32)(fileSize>>20)); #else if (!fileSize) DISPLAYUPDATE(2, "\rRead : %u MB ==> %.2f%%", (U32)(readsize>>20), (double)compressedfilesize/readsize*100) else DISPLAYUPDATE(2, "\rRead : %u / %u MB ==> %.2f%%", (U32)(readsize>>20), (U32)(fileSize>>20), (double)compressedfilesize/readsize*100); #endif } /* End of Frame */ { size_t result = 1; while (result!=0) { /* note : is there any possibility of endless loop ? */ ZSTD_outBuffer outBuff = { ress.dstBuffer, ress.dstBufferSize, 0 }; #ifdef ZSTD_MULTITHREAD result = ZSTDMT_endStream(ress.cctx, &outBuff); #else result = ZSTD_endStream(ress.cctx, &outBuff); #endif if (ZSTD_isError(result)) EXM_THROW(26, "Compression error during frame end : %s", ZSTD_getErrorName(result)); { size_t const sizeCheck = fwrite(ress.dstBuffer, 1, outBuff.pos, dstFile); if (sizeCheck!=outBuff.pos) EXM_THROW(27, "Write error : cannot write frame end into %s", dstFileName); } compressedfilesize += outBuff.pos; } } finish: /* Status */ DISPLAYLEVEL(2, "\r%79s\r", ""); DISPLAYLEVEL(2,"%-20s :%6.2f%% (%6llu => %6llu bytes, %s) \n", srcFileName, (double)compressedfilesize/(readsize+(!readsize) /* avoid div by zero */ )*100, (unsigned long long)readsize, (unsigned long long) compressedfilesize, dstFileName); return 0; } /*! FIO_compressFilename_srcFile() : * note : ress.destFile already opened * @return : 0 : compression completed correctly, * 1 : missing or pb opening srcFileName */ static int FIO_compressFilename_srcFile(cRess_t ress, const char* dstFileName, const char* srcFileName, int compressionLevel) { int result; /* File check */ if (UTIL_isDirectory(srcFileName)) { DISPLAYLEVEL(1, "zstd: %s is a directory -- ignored \n", srcFileName); return 1; } ress.srcFile = FIO_openSrcFile(srcFileName); if (!ress.srcFile) return 1; /* srcFile could not be opened */ result = FIO_compressFilename_internal(ress, dstFileName, srcFileName, compressionLevel); fclose(ress.srcFile); if (g_removeSrcFile /* --rm */ && !result && strcmp(srcFileName, stdinmark)) { if (remove(srcFileName)) EXM_THROW(1, "zstd: %s: %s", srcFileName, strerror(errno)); } return result; } /*! FIO_compressFilename_dstFile() : * @return : 0 : compression completed correctly, * 1 : pb */ static int FIO_compressFilename_dstFile(cRess_t ress, const char* dstFileName, const char* srcFileName, int compressionLevel) { int result; stat_t statbuf; int stat_result = 0; ress.dstFile = FIO_openDstFile(dstFileName); if (ress.dstFile==NULL) return 1; /* could not open dstFileName */ if (strcmp (srcFileName, stdinmark) && UTIL_getFileStat(srcFileName, &statbuf)) stat_result = 1; result = FIO_compressFilename_srcFile(ress, dstFileName, srcFileName, compressionLevel); if (fclose(ress.dstFile)) { DISPLAYLEVEL(1, "zstd: %s: %s \n", dstFileName, strerror(errno)); result=1; } /* error closing dstFile */ if (result!=0) { if (remove(dstFileName)) EXM_THROW(1, "zstd: %s: %s", dstFileName, strerror(errno)); } /* remove operation artefact */ else if (strcmp (dstFileName, stdoutmark) && stat_result) UTIL_setFileStat(dstFileName, &statbuf); return result; } int FIO_compressFilename(const char* dstFileName, const char* srcFileName, const char* dictFileName, int compressionLevel, ZSTD_compressionParameters* comprParams) { clock_t const start = clock(); U64 const srcSize = UTIL_getFileSize(srcFileName); int const regFile = UTIL_isRegFile(srcFileName); cRess_t const ress = FIO_createCResources(dictFileName, compressionLevel, srcSize, regFile, comprParams); int const result = FIO_compressFilename_dstFile(ress, dstFileName, srcFileName, compressionLevel); double const seconds = (double)(clock() - start) / CLOCKS_PER_SEC; DISPLAYLEVEL(4, "Completed in %.2f sec \n", seconds); FIO_freeCResources(ress); return result; } int FIO_compressMultipleFilenames(const char** inFileNamesTable, unsigned nbFiles, const char* suffix, const char* dictFileName, int compressionLevel, ZSTD_compressionParameters* comprParams) { int missed_files = 0; size_t dfnSize = FNSPACE; char* dstFileName = (char*)malloc(FNSPACE); size_t const suffixSize = suffix ? strlen(suffix) : 0; U64 const srcSize = (nbFiles != 1) ? 0 : UTIL_getFileSize(inFileNamesTable[0]) ; int const regFile = (nbFiles != 1) ? 0 : UTIL_isRegFile(inFileNamesTable[0]); cRess_t ress = FIO_createCResources(dictFileName, compressionLevel, srcSize, regFile, comprParams); /* init */ if (dstFileName==NULL) EXM_THROW(27, "FIO_compressMultipleFilenames : allocation error for dstFileName"); if (suffix == NULL) EXM_THROW(28, "FIO_compressMultipleFilenames : dst unknown"); /* should never happen */ /* loop on each file */ if (!strcmp(suffix, stdoutmark)) { unsigned u; ress.dstFile = stdout; SET_BINARY_MODE(stdout); for (u=0; u 1 GB) { int const seekResult = LONG_SEEK(file, 1 GB, SEEK_CUR); if (seekResult != 0) EXM_THROW(71, "1 GB skip error (sparse file support)"); storedSkips -= 1 GB; } while (ptrT < bufferTEnd) { size_t seg0SizeT = segmentSizeT; size_t nb0T; /* count leading zeros */ if (seg0SizeT > bufferSizeT) seg0SizeT = bufferSizeT; bufferSizeT -= seg0SizeT; for (nb0T=0; (nb0T < seg0SizeT) && (ptrT[nb0T] == 0); nb0T++) ; storedSkips += (unsigned)(nb0T * sizeof(size_t)); if (nb0T != seg0SizeT) { /* not all 0s */ int const seekResult = LONG_SEEK(file, storedSkips, SEEK_CUR); if (seekResult) EXM_THROW(72, "Sparse skip error ; try --no-sparse"); storedSkips = 0; seg0SizeT -= nb0T; ptrT += nb0T; { size_t const sizeCheck = fwrite(ptrT, sizeof(size_t), seg0SizeT, file); if (sizeCheck != seg0SizeT) EXM_THROW(73, "Write error : cannot write decoded block"); } } ptrT += seg0SizeT; } { static size_t const maskT = sizeof(size_t)-1; if (bufferSize & maskT) { /* size not multiple of sizeof(size_t) : implies end of block */ const char* const restStart = (const char*)bufferTEnd; const char* restPtr = restStart; size_t restSize = bufferSize & maskT; const char* const restEnd = restStart + restSize; for ( ; (restPtr < restEnd) && (*restPtr == 0); restPtr++) ; storedSkips += (unsigned) (restPtr - restStart); if (restPtr != restEnd) { int seekResult = LONG_SEEK(file, storedSkips, SEEK_CUR); if (seekResult) EXM_THROW(74, "Sparse skip error ; try --no-sparse"); storedSkips = 0; { size_t const sizeCheck = fwrite(restPtr, 1, restEnd - restPtr, file); if (sizeCheck != (size_t)(restEnd - restPtr)) EXM_THROW(75, "Write error : cannot write decoded end of block"); } } } } return storedSkips; } static void FIO_fwriteSparseEnd(FILE* file, unsigned storedSkips) { if (storedSkips-->0) { /* implies g_sparseFileSupport>0 */ int const seekResult = LONG_SEEK(file, storedSkips, SEEK_CUR); if (seekResult != 0) EXM_THROW(69, "Final skip error (sparse file)"); { const char lastZeroByte[1] = { 0 }; size_t const sizeCheck = fwrite(lastZeroByte, 1, 1, file); if (sizeCheck != 1) EXM_THROW(69, "Write error : cannot write last zero"); } } } /** FIO_passThrough() : just copy input into output, for compatibility with gzip -df mode @return : 0 (no error) */ static unsigned FIO_passThrough(FILE* foutput, FILE* finput, void* buffer, size_t bufferSize, size_t alreadyLoaded) { size_t const blockSize = MIN(64 KB, bufferSize); size_t readFromInput = 1; unsigned storedSkips = 0; /* assumption : ress->srcBufferLoaded bytes already loaded and stored within buffer */ { size_t const sizeCheck = fwrite(buffer, 1, alreadyLoaded, foutput); if (sizeCheck != alreadyLoaded) EXM_THROW(50, "Pass-through write error"); } while (readFromInput) { readFromInput = fread(buffer, 1, blockSize, finput); storedSkips = FIO_fwriteSparse(foutput, buffer, readFromInput, storedSkips); } FIO_fwriteSparseEnd(foutput, storedSkips); return 0; } /** FIO_decompressFrame() : @return : size of decoded frame */ unsigned long long FIO_decompressFrame(dRess_t* ress, FILE* finput, U64 alreadyDecoded) { U64 frameSize = 0; U32 storedSkips = 0; ZSTD_resetDStream(ress->dctx); /* Header loading (optional, saves one loop) */ { size_t const toRead = 9; if (ress->srcBufferLoaded < toRead) ress->srcBufferLoaded += fread(((char*)ress->srcBuffer) + ress->srcBufferLoaded, 1, toRead - ress->srcBufferLoaded, finput); } /* Main decompression Loop */ while (1) { ZSTD_inBuffer inBuff = { ress->srcBuffer, ress->srcBufferLoaded, 0 }; ZSTD_outBuffer outBuff= { ress->dstBuffer, ress->dstBufferSize, 0 }; size_t const readSizeHint = ZSTD_decompressStream(ress->dctx, &outBuff, &inBuff); if (ZSTD_isError(readSizeHint)) EXM_THROW(36, "Decoding error : %s", ZSTD_getErrorName(readSizeHint)); /* Write block */ storedSkips = FIO_fwriteSparse(ress->dstFile, ress->dstBuffer, outBuff.pos, storedSkips); frameSize += outBuff.pos; DISPLAYUPDATE(2, "\rDecoded : %u MB... ", (U32)((alreadyDecoded+frameSize)>>20) ); if (inBuff.pos > 0) { memmove(ress->srcBuffer, (char*)ress->srcBuffer + inBuff.pos, inBuff.size - inBuff.pos); ress->srcBufferLoaded -= inBuff.pos; } if (readSizeHint == 0) break; /* end of frame */ if (inBuff.size != inBuff.pos) EXM_THROW(37, "Decoding error : should consume entire input"); /* Fill input buffer */ { size_t const toRead = MIN(readSizeHint, ress->srcBufferSize); /* support large skippable frames */ if (ress->srcBufferLoaded < toRead) ress->srcBufferLoaded += fread(((char*)ress->srcBuffer) + ress->srcBufferLoaded, 1, toRead - ress->srcBufferLoaded, finput); if (ress->srcBufferLoaded < toRead) EXM_THROW(39, "Read error : premature end"); } } FIO_fwriteSparseEnd(ress->dstFile, storedSkips); return frameSize; } #ifdef ZSTD_GZDECOMPRESS static unsigned long long FIO_decompressGzFrame(dRess_t* ress, FILE* srcFile, const char* srcFileName) { unsigned long long outFileSize = 0; z_stream strm; int flush = Z_NO_FLUSH; int ret; strm.zalloc = Z_NULL; strm.zfree = Z_NULL; strm.opaque = Z_NULL; strm.next_in = 0; strm.avail_in = 0; if (inflateInit2(&strm, 15 /* maxWindowLogSize */ + 16 /* gzip only */) != Z_OK) return 0; /* see http://www.zlib.net/manual.html */ strm.next_out = (Bytef*)ress->dstBuffer; strm.avail_out = (uInt)ress->dstBufferSize; strm.avail_in = (uInt)ress->srcBufferLoaded; strm.next_in = (z_const unsigned char*)ress->srcBuffer; for ( ; ; ) { if (strm.avail_in == 0) { ress->srcBufferLoaded = fread(ress->srcBuffer, 1, ress->srcBufferSize, srcFile); if (ress->srcBufferLoaded == 0) flush = Z_FINISH; strm.next_in = (z_const unsigned char*)ress->srcBuffer; strm.avail_in = (uInt)ress->srcBufferLoaded; } ret = inflate(&strm, flush); if (ret == Z_BUF_ERROR) EXM_THROW(39, "zstd: %s: premature end", srcFileName); if (ret != Z_OK && ret != Z_STREAM_END) { DISPLAY("zstd: %s: inflate error %d \n", srcFileName, ret); return 0; } { size_t const decompBytes = ress->dstBufferSize - strm.avail_out; if (decompBytes) { if (fwrite(ress->dstBuffer, 1, decompBytes, ress->dstFile) != decompBytes) EXM_THROW(31, "Write error : cannot write to output file"); outFileSize += decompBytes; strm.next_out = (Bytef*)ress->dstBuffer; strm.avail_out = (uInt)ress->dstBufferSize; } } if (ret == Z_STREAM_END) break; } if (strm.avail_in > 0) memmove(ress->srcBuffer, strm.next_in, strm.avail_in); ress->srcBufferLoaded = strm.avail_in; ret = inflateEnd(&strm); if (ret != Z_OK) EXM_THROW(32, "zstd: %s: inflateEnd error %d", srcFileName, ret); return outFileSize; } #endif #ifdef ZSTD_LZMADECOMPRESS static unsigned long long FIO_decompressLzmaFrame(dRess_t* ress, FILE* srcFile, const char* srcFileName, int plain_lzma) { unsigned long long outFileSize = 0; lzma_stream strm = LZMA_STREAM_INIT; lzma_action action = LZMA_RUN; lzma_ret ret; strm.next_in = 0; strm.avail_in = 0; if (plain_lzma) { ret = lzma_alone_decoder(&strm, UINT64_MAX); /* LZMA */ } else { ret = lzma_stream_decoder(&strm, UINT64_MAX, 0); /* XZ */ } if (ret != LZMA_OK) EXM_THROW(71, "zstd: %s: lzma_alone_decoder/lzma_stream_decoder error %d", srcFileName, ret); strm.next_out = ress->dstBuffer; strm.avail_out = ress->dstBufferSize; strm.avail_in = ress->srcBufferLoaded; strm.next_in = ress->srcBuffer; for ( ; ; ) { if (strm.avail_in == 0) { ress->srcBufferLoaded = fread(ress->srcBuffer, 1, ress->srcBufferSize, srcFile); if (ress->srcBufferLoaded == 0) action = LZMA_FINISH; strm.next_in = ress->srcBuffer; strm.avail_in = ress->srcBufferLoaded; } ret = lzma_code(&strm, action); if (ret == LZMA_BUF_ERROR) EXM_THROW(39, "zstd: %s: premature end", srcFileName); if (ret != LZMA_OK && ret != LZMA_STREAM_END) { DISPLAY("zstd: %s: lzma_code decoding error %d \n", srcFileName, ret); return 0; } { size_t const decompBytes = ress->dstBufferSize - strm.avail_out; if (decompBytes) { if (fwrite(ress->dstBuffer, 1, decompBytes, ress->dstFile) != decompBytes) EXM_THROW(31, "Write error : cannot write to output file"); outFileSize += decompBytes; strm.next_out = ress->dstBuffer; strm.avail_out = ress->dstBufferSize; } } if (ret == LZMA_STREAM_END) break; } if (strm.avail_in > 0) memmove(ress->srcBuffer, strm.next_in, strm.avail_in); ress->srcBufferLoaded = strm.avail_in; lzma_end(&strm); return outFileSize; } #endif /** FIO_decompressSrcFile() : Decompression `srcFileName` into `ress.dstFile` @return : 0 : OK 1 : operation not started */ static int FIO_decompressSrcFile(dRess_t ress, const char* dstFileName, const char* srcFileName) { FILE* srcFile; unsigned readSomething = 0; unsigned long long filesize = 0; if (UTIL_isDirectory(srcFileName)) { DISPLAYLEVEL(1, "zstd: %s is a directory -- ignored \n", srcFileName); return 1; } srcFile = FIO_openSrcFile(srcFileName); if (srcFile==NULL) return 1; /* for each frame */ for ( ; ; ) { /* check magic number -> version */ size_t const toRead = 4; const BYTE* buf = (const BYTE*)ress.srcBuffer; if (ress.srcBufferLoaded < toRead) ress.srcBufferLoaded += fread((char*)ress.srcBuffer + ress.srcBufferLoaded, (size_t)1, toRead - ress.srcBufferLoaded, srcFile); if (ress.srcBufferLoaded==0) { if (readSomething==0) { DISPLAY("zstd: %s: unexpected end of file \n", srcFileName); fclose(srcFile); return 1; } /* srcFileName is empty */ break; /* no more input */ } readSomething = 1; /* there is at least >= 4 bytes in srcFile */ if (ress.srcBufferLoaded < toRead) { DISPLAY("zstd: %s: unknown header \n", srcFileName); fclose(srcFile); return 1; } /* srcFileName is empty */ if (buf[0] == 31 && buf[1] == 139) { /* gz magic number */ #ifdef ZSTD_GZDECOMPRESS unsigned long long const result = FIO_decompressGzFrame(&ress, srcFile, srcFileName); if (result == 0) return 1; filesize += result; #else DISPLAYLEVEL(1, "zstd: %s: gzip file cannot be uncompressed (zstd compiled without ZSTD_GZDECOMPRESS) -- ignored \n", srcFileName); return 1; #endif } else if ((buf[0] == 0xFD && buf[1] == 0x37) /* xz magic number */ || (buf[0] == 0x5D && buf[1] == 0x00)) { /* lzma header (no magic number) */ #ifdef ZSTD_LZMADECOMPRESS unsigned long long const result = FIO_decompressLzmaFrame(&ress, srcFile, srcFileName, buf[0] != 0xFD); if (result == 0) return 1; filesize += result; #else DISPLAYLEVEL(1, "zstd: %s: xz/lzma file cannot be uncompressed (zstd compiled without ZSTD_LZMADECOMPRESS) -- ignored \n", srcFileName); return 1; #endif } else { if (!ZSTD_isFrame(ress.srcBuffer, toRead)) { if ((g_overwrite) && !strcmp (dstFileName, stdoutmark)) { /* pass-through mode */ unsigned const result = FIO_passThrough(ress.dstFile, srcFile, ress.srcBuffer, ress.srcBufferSize, ress.srcBufferLoaded); if (fclose(srcFile)) EXM_THROW(32, "zstd: %s close error", srcFileName); /* error should never happen */ return result; } else { DISPLAYLEVEL(1, "zstd: %s: not in zstd format \n", srcFileName); fclose(srcFile); return 1; } } filesize += FIO_decompressFrame(&ress, srcFile, filesize); } } /* Final Status */ DISPLAYLEVEL(2, "\r%79s\r", ""); DISPLAYLEVEL(2, "%-20s: %llu bytes \n", srcFileName, filesize); /* Close file */ if (fclose(srcFile)) EXM_THROW(33, "zstd: %s close error", srcFileName); /* error should never happen */ if (g_removeSrcFile /* --rm */ && strcmp(srcFileName, stdinmark)) { if (remove(srcFileName)) EXM_THROW(34, "zstd: %s: %s", srcFileName, strerror(errno)); }; return 0; } /** FIO_decompressFile_extRess() : decompress `srcFileName` into `dstFileName` @return : 0 : OK 1 : operation aborted (src not available, dst already taken, etc.) */ static int FIO_decompressDstFile(dRess_t ress, const char* dstFileName, const char* srcFileName) { int result; stat_t statbuf; int stat_result = 0; ress.dstFile = FIO_openDstFile(dstFileName); if (ress.dstFile==0) return 1; if (strcmp (srcFileName, stdinmark) && UTIL_getFileStat(srcFileName, &statbuf)) stat_result = 1; result = FIO_decompressSrcFile(ress, dstFileName, srcFileName); if (fclose(ress.dstFile)) EXM_THROW(38, "Write error : cannot properly close %s", dstFileName); if ( (result != 0) && strcmp(dstFileName, nulmark) /* special case : don't remove() /dev/null (#316) */ && remove(dstFileName) ) result=1; /* don't do anything special if remove() fails */ else if (strcmp (dstFileName, stdoutmark) && stat_result) UTIL_setFileStat(dstFileName, &statbuf); return result; } int FIO_decompressFilename(const char* dstFileName, const char* srcFileName, const char* dictFileName) { int missingFiles = 0; dRess_t ress = FIO_createDResources(dictFileName); missingFiles += FIO_decompressDstFile(ress, dstFileName, srcFileName); FIO_freeDResources(ress); return missingFiles; } #define MAXSUFFIXSIZE 8 int FIO_decompressMultipleFilenames(const char** srcNamesTable, unsigned nbFiles, const char* suffix, const char* dictFileName) { int skippedFiles = 0; int missingFiles = 0; dRess_t ress = FIO_createDResources(dictFileName); if (suffix==NULL) EXM_THROW(70, "zstd: decompression: unknown dst"); /* should never happen */ if (!strcmp(suffix, stdoutmark) || !strcmp(suffix, nulmark)) { /* special cases : -c or -t */ unsigned u; ress.dstFile = FIO_openDstFile(suffix); if (ress.dstFile == 0) EXM_THROW(71, "cannot open %s", suffix); for (u=0; u /* strcmp, strlen */ #include /* errno */ #include "fileio.h" #ifndef ZSTD_NOBENCH # include "bench.h" /* BMK_benchFiles, BMK_SetNbSeconds */ #endif #ifndef ZSTD_NODICT # include "dibio.h" #endif #define ZSTD_STATIC_LINKING_ONLY /* ZSTD_maxCLevel */ #include "zstd.h" /* ZSTD_VERSION_STRING */ /*-************************************ * Constants **************************************/ #define COMPRESSOR_NAME "zstd command line interface" #ifndef ZSTD_VERSION # define ZSTD_VERSION "v" ZSTD_VERSION_STRING #endif #define AUTHOR "Yann Collet" #define WELCOME_MESSAGE "*** %s %i-bits %s, by %s ***\n", COMPRESSOR_NAME, (int)(sizeof(size_t)*8), ZSTD_VERSION, AUTHOR #define ZSTD_UNZSTD "unzstd" #define ZSTD_CAT "zstdcat" #define ZSTD_GZ "gzip" #define ZSTD_GUNZIP "gunzip" #define ZSTD_GZCAT "gzcat" #define ZSTD_LZMA "lzma" #define ZSTD_XZ "xz" #define KB *(1 <<10) #define MB *(1 <<20) #define GB *(1U<<30) -#define DEFAULT_DISPLAY_LEVEL 2 +#define DEFAULT_DISPLAY_LEVEL 1 static const char* g_defaultDictName = "dictionary"; static const unsigned g_defaultMaxDictSize = 110 KB; static const int g_defaultDictCLevel = 3; static const unsigned g_defaultSelectivityLevel = 9; #define OVERLAP_LOG_DEFAULT 9999 static U32 g_overlapLog = OVERLAP_LOG_DEFAULT; /*-************************************ * Display Macros **************************************/ #define DISPLAY(...) fprintf(displayOut, __VA_ARGS__) #define DISPLAYLEVEL(l, ...) if (displayLevel>=l) { DISPLAY(__VA_ARGS__); } static FILE* displayOut; static unsigned displayLevel = DEFAULT_DISPLAY_LEVEL; /* 0 : no display, 1: errors, 2 : + result + interaction + warnings, 3 : + progression, 4 : + information */ /*-************************************ * Command Line **************************************/ static int usage(const char* programName) { DISPLAY( "Usage :\n"); DISPLAY( " %s [args] [FILE(s)] [-o file]\n", programName); DISPLAY( "\n"); DISPLAY( "FILE : a filename\n"); DISPLAY( " with no FILE, or when FILE is - , read standard input\n"); DISPLAY( "Arguments :\n"); #ifndef ZSTD_NOCOMPRESS DISPLAY( " -# : # compression level (1-%d, default:%d) \n", ZSTDCLI_CLEVEL_MAX, ZSTDCLI_CLEVEL_DEFAULT); #endif #ifndef ZSTD_NODECOMPRESS DISPLAY( " -d : decompression \n"); #endif DISPLAY( " -D file: use `file` as Dictionary \n"); DISPLAY( " -o file: result stored into `file` (only if 1 input file) \n"); DISPLAY( " -f : overwrite output without prompting \n"); DISPLAY( "--rm : remove source file(s) after successful de/compression \n"); DISPLAY( " -k : preserve source file(s) (default) \n"); DISPLAY( " -h/-H : display help/long help and exit\n"); return 0; } static int usage_advanced(const char* programName) { DISPLAY(WELCOME_MESSAGE); usage(programName); DISPLAY( "\n"); DISPLAY( "Advanced arguments :\n"); DISPLAY( " -V : display Version number and exit\n"); DISPLAY( " -v : verbose mode; specify multiple times to increase log level (default:%d)\n", DEFAULT_DISPLAY_LEVEL); DISPLAY( " -q : suppress warnings; specify twice to suppress errors too\n"); DISPLAY( " -c : force write to standard output, even if it is the console\n"); #ifdef UTIL_HAS_CREATEFILELIST DISPLAY( " -r : operate recursively on directories \n"); #endif #ifndef ZSTD_NOCOMPRESS DISPLAY( "--ultra : enable levels beyond %i, up to %i (requires more memory)\n", ZSTDCLI_CLEVEL_MAX, ZSTD_maxCLevel()); DISPLAY( "--no-dictID : don't write dictID into header (dictionary compression)\n"); DISPLAY( "--[no-]check : integrity check (default:enabled) \n"); #ifdef ZSTD_MULTITHREAD DISPLAY( " -T# : use # threads for compression (default:1) \n"); DISPLAY( " -B# : select size of independent sections (default:0==automatic) \n"); #endif #ifdef ZSTD_GZCOMPRESS DISPLAY( "--format=gzip : compress files to the .gz format \n"); #endif #ifdef ZSTD_LZMACOMPRESS DISPLAY( "--format=xz : compress files to the .xz format \n"); DISPLAY( "--format=lzma : compress files to the .lzma format \n"); #endif #endif #ifndef ZSTD_NODECOMPRESS DISPLAY( "--test : test compressed file integrity \n"); DISPLAY( "--[no-]sparse : sparse mode (default:enabled on file, disabled on stdout)\n"); #endif DISPLAY( " -M# : Set a memory usage limit for decompression \n"); DISPLAY( "-- : All arguments after \"--\" are treated as files \n"); #ifndef ZSTD_NODICT DISPLAY( "\n"); DISPLAY( "Dictionary builder :\n"); DISPLAY( "--train ## : create a dictionary from a training set of files \n"); DISPLAY( "--cover=k=#,d=# : use the cover algorithm with parameters k and d \n"); DISPLAY( "--optimize-cover[=steps=#,k=#,d=#] : optimize cover parameters with optional parameters\n"); DISPLAY( " -o file : `file` is dictionary name (default: %s) \n", g_defaultDictName); DISPLAY( "--maxdict ## : limit dictionary to specified size (default : %u) \n", g_defaultMaxDictSize); DISPLAY( " -s# : dictionary selectivity level (default: %u)\n", g_defaultSelectivityLevel); DISPLAY( "--dictID ## : force dictionary ID to specified value (default: random)\n"); #endif #ifndef ZSTD_NOBENCH DISPLAY( "\n"); DISPLAY( "Benchmark arguments :\n"); DISPLAY( " -b# : benchmark file(s), using # compression level (default : 1) \n"); DISPLAY( " -e# : test all compression levels from -bX to # (default: 1)\n"); DISPLAY( " -i# : minimum evaluation time in seconds (default : 3s)\n"); DISPLAY( " -B# : cut file into independent blocks of size # (default: no block)\n"); DISPLAY( "--priority=rt : set process priority to real-time\n"); #endif return 0; } static int badusage(const char* programName) { DISPLAYLEVEL(1, "Incorrect parameters\n"); if (displayLevel >= 1) usage(programName); return 1; } static void waitEnter(void) { int unused; DISPLAY("Press enter to continue...\n"); unused = getchar(); (void)unused; } /*! readU32FromChar() : @return : unsigned integer value read from input in `char` format allows and interprets K, KB, KiB, M, MB and MiB suffix. Will also modify `*stringPtr`, advancing it to position where it stopped reading. Note : function result can overflow if digit string > MAX_UINT */ static unsigned readU32FromChar(const char** stringPtr) { unsigned result = 0; while ((**stringPtr >='0') && (**stringPtr <='9')) result *= 10, result += **stringPtr - '0', (*stringPtr)++ ; if ((**stringPtr=='K') || (**stringPtr=='M')) { result <<= 10; if (**stringPtr=='M') result <<= 10; (*stringPtr)++ ; if (**stringPtr=='i') (*stringPtr)++; if (**stringPtr=='B') (*stringPtr)++; } return result; } /** longCommandWArg() : * check if *stringPtr is the same as longCommand. * If yes, @return 1 and advances *stringPtr to the position which immediately follows longCommand. * @return 0 and doesn't modify *stringPtr otherwise. */ static unsigned longCommandWArg(const char** stringPtr, const char* longCommand) { size_t const comSize = strlen(longCommand); int const result = !strncmp(*stringPtr, longCommand, comSize); if (result) *stringPtr += comSize; return result; } #ifndef ZSTD_NODICT /** * parseCoverParameters() : * reads cover parameters from *stringPtr (e.g. "--cover=smoothing=100,kmin=48,kstep=4,kmax=64,d=8") into *params * @return 1 means that cover parameters were correct * @return 0 in case of malformed parameters */ static unsigned parseCoverParameters(const char* stringPtr, COVER_params_t *params) { memset(params, 0, sizeof(*params)); for (; ;) { if (longCommandWArg(&stringPtr, "k=")) { params->k = readU32FromChar(&stringPtr); if (stringPtr[0]==',') { stringPtr++; continue; } else break; } if (longCommandWArg(&stringPtr, "d=")) { params->d = readU32FromChar(&stringPtr); if (stringPtr[0]==',') { stringPtr++; continue; } else break; } if (longCommandWArg(&stringPtr, "steps=")) { params->steps = readU32FromChar(&stringPtr); if (stringPtr[0]==',') { stringPtr++; continue; } else break; } return 0; } if (stringPtr[0] != 0) return 0; DISPLAYLEVEL(4, "k=%u\nd=%u\nsteps=%u\n", params->k, params->d, params->steps); return 1; } #endif /** parseCompressionParameters() : * reads compression parameters from *stringPtr (e.g. "--zstd=wlog=23,clog=23,hlog=22,slog=6,slen=3,tlen=48,strat=6") into *params * @return 1 means that compression parameters were correct * @return 0 in case of malformed parameters */ static unsigned parseCompressionParameters(const char* stringPtr, ZSTD_compressionParameters* params) { for ( ; ;) { if (longCommandWArg(&stringPtr, "windowLog=") || longCommandWArg(&stringPtr, "wlog=")) { params->windowLog = readU32FromChar(&stringPtr); if (stringPtr[0]==',') { stringPtr++; continue; } else break; } if (longCommandWArg(&stringPtr, "chainLog=") || longCommandWArg(&stringPtr, "clog=")) { params->chainLog = readU32FromChar(&stringPtr); if (stringPtr[0]==',') { stringPtr++; continue; } else break; } if (longCommandWArg(&stringPtr, "hashLog=") || longCommandWArg(&stringPtr, "hlog=")) { params->hashLog = readU32FromChar(&stringPtr); if (stringPtr[0]==',') { stringPtr++; continue; } else break; } if (longCommandWArg(&stringPtr, "searchLog=") || longCommandWArg(&stringPtr, "slog=")) { params->searchLog = readU32FromChar(&stringPtr); if (stringPtr[0]==',') { stringPtr++; continue; } else break; } if (longCommandWArg(&stringPtr, "searchLength=") || longCommandWArg(&stringPtr, "slen=")) { params->searchLength = readU32FromChar(&stringPtr); if (stringPtr[0]==',') { stringPtr++; continue; } else break; } if (longCommandWArg(&stringPtr, "targetLength=") || longCommandWArg(&stringPtr, "tlen=")) { params->targetLength = readU32FromChar(&stringPtr); if (stringPtr[0]==',') { stringPtr++; continue; } else break; } if (longCommandWArg(&stringPtr, "strategy=") || longCommandWArg(&stringPtr, "strat=")) { params->strategy = (ZSTD_strategy)(1 + readU32FromChar(&stringPtr)); if (stringPtr[0]==',') { stringPtr++; continue; } else break; } if (longCommandWArg(&stringPtr, "overlapLog=") || longCommandWArg(&stringPtr, "ovlog=")) { g_overlapLog = readU32FromChar(&stringPtr); if (stringPtr[0]==',') { stringPtr++; continue; } else break; } return 0; } if (stringPtr[0] != 0) return 0; /* check the end of string */ DISPLAYLEVEL(4, "windowLog=%d\nchainLog=%d\nhashLog=%d\nsearchLog=%d\n", params->windowLog, params->chainLog, params->hashLog, params->searchLog); DISPLAYLEVEL(4, "searchLength=%d\ntargetLength=%d\nstrategy=%d\n", params->searchLength, params->targetLength, params->strategy); return 1; } typedef enum { zom_compress, zom_decompress, zom_test, zom_bench, zom_train } zstd_operation_mode; #define CLEAN_RETURN(i) { operationResult = (i); goto _end; } int main(int argCount, const char* argv[]) { int argNb, forceStdout=0, main_pause=0, nextEntryIsDictionary=0, operationResult=0, nextArgumentIsOutFileName=0, nextArgumentIsMaxDict=0, nextArgumentIsDictID=0, nextArgumentsAreFiles=0, ultra=0, lastCommand = 0, nbThreads = 1, setRealTimePrio = 0; unsigned bench_nbSeconds = 3; /* would be better if this value was synchronized from bench */ size_t blockSize = 0; zstd_operation_mode operation = zom_compress; ZSTD_compressionParameters compressionParams; int cLevel = ZSTDCLI_CLEVEL_DEFAULT; int cLevelLast = 1; unsigned recursive = 0; unsigned memLimit = 0; const char** filenameTable = (const char**)malloc(argCount * sizeof(const char*)); /* argCount >= 1 */ unsigned filenameIdx = 0; const char* programName = argv[0]; const char* outFileName = NULL; const char* dictFileName = NULL; const char* suffix = ZSTD_EXTENSION; unsigned maxDictSize = g_defaultMaxDictSize; unsigned dictID = 0; int dictCLevel = g_defaultDictCLevel; unsigned dictSelect = g_defaultSelectivityLevel; #ifdef UTIL_HAS_CREATEFILELIST const char** extendedFileList = NULL; char* fileNamesBuf = NULL; unsigned fileNamesNb; #endif #ifndef ZSTD_NODICT COVER_params_t coverParams; int cover = 0; #endif /* init */ (void)recursive; (void)cLevelLast; /* not used when ZSTD_NOBENCH set */ (void)dictCLevel; (void)dictSelect; (void)dictID; (void)maxDictSize; /* not used when ZSTD_NODICT set */ (void)ultra; (void)cLevel; /* not used when ZSTD_NOCOMPRESS set */ (void)memLimit; /* not used when ZSTD_NODECOMPRESS set */ if (filenameTable==NULL) { DISPLAY("zstd: %s \n", strerror(errno)); exit(1); } filenameTable[0] = stdinmark; displayOut = stderr; /* Pick out program name from path. Don't rely on stdlib because of conflicting behavior */ { size_t pos; for (pos = (int)strlen(programName); pos > 0; pos--) { if (programName[pos] == '/') { pos++; break; } } programName += pos; } /* preset behaviors */ if (!strcmp(programName, ZSTD_UNZSTD)) operation=zom_decompress; if (!strcmp(programName, ZSTD_CAT)) { operation=zom_decompress; forceStdout=1; FIO_overwriteMode(); outFileName=stdoutmark; displayLevel=1; } if (!strcmp(programName, ZSTD_GZ)) { suffix = GZ_EXTENSION; FIO_setCompressionType(FIO_gzipCompression); FIO_setRemoveSrcFile(1); } /* behave like gzip */ if (!strcmp(programName, ZSTD_GUNZIP)) { operation=zom_decompress; FIO_setRemoveSrcFile(1); } /* behave like gunzip */ if (!strcmp(programName, ZSTD_GZCAT)) { operation=zom_decompress; forceStdout=1; FIO_overwriteMode(); outFileName=stdoutmark; displayLevel=1; } /* behave like gzcat */ if (!strcmp(programName, ZSTD_LZMA)) { suffix = LZMA_EXTENSION; FIO_setCompressionType(FIO_lzmaCompression); FIO_setRemoveSrcFile(1); } /* behave like lzma */ if (!strcmp(programName, ZSTD_XZ)) { suffix = XZ_EXTENSION; FIO_setCompressionType(FIO_xzCompression); FIO_setRemoveSrcFile(1); } /* behave like xz */ memset(&compressionParams, 0, sizeof(compressionParams)); /* command switches */ for (argNb=1; argNb='0') && (*argument<='9')) { dictCLevel = cLevel = readU32FromChar(&argument); continue; } #endif switch(argument[0]) { /* Display help */ case 'V': displayOut=stdout; DISPLAY(WELCOME_MESSAGE); CLEAN_RETURN(0); /* Version Only */ case 'H': case 'h': displayOut=stdout; CLEAN_RETURN(usage_advanced(programName)); /* Compress */ case 'z': operation=zom_compress; argument++; break; /* Decoding */ case 'd': #ifndef ZSTD_NOBENCH if (operation==zom_bench) { BMK_setDecodeOnlyMode(1); argument++; break; } /* benchmark decode (hidden option) */ #endif operation=zom_decompress; argument++; break; /* Force stdout, even if stdout==console */ case 'c': forceStdout=1; outFileName=stdoutmark; argument++; break; /* Use file content as dictionary */ case 'D': nextEntryIsDictionary = 1; lastCommand = 1; argument++; break; /* Overwrite */ case 'f': FIO_overwriteMode(); forceStdout=1; argument++; break; /* Verbose mode */ case 'v': displayLevel++; argument++; break; /* Quiet mode */ case 'q': displayLevel--; argument++; break; /* keep source file (default); for gzip/xz compatibility */ case 'k': FIO_setRemoveSrcFile(0); argument++; break; /* Checksum */ case 'C': argument++; FIO_setChecksumFlag(2); break; /* test compressed file */ case 't': operation=zom_test; argument++; break; /* destination file name */ case 'o': nextArgumentIsOutFileName=1; lastCommand=1; argument++; break; /* limit decompression memory */ case 'M': argument++; memLimit = readU32FromChar(&argument); break; #ifdef UTIL_HAS_CREATEFILELIST /* recursive */ case 'r': recursive=1; argument++; break; #endif #ifndef ZSTD_NOBENCH /* Benchmark */ case 'b': operation=zom_bench; argument++; break; /* range bench (benchmark only) */ case 'e': /* compression Level */ argument++; cLevelLast = readU32FromChar(&argument); break; /* Modify Nb Iterations (benchmark only) */ case 'i': argument++; bench_nbSeconds = readU32FromChar(&argument); break; /* cut input into blocks (benchmark only) */ case 'B': argument++; blockSize = readU32FromChar(&argument); break; #endif /* ZSTD_NOBENCH */ /* nb of threads (hidden option) */ case 'T': argument++; nbThreads = readU32FromChar(&argument); break; /* Dictionary Selection level */ case 's': argument++; dictSelect = readU32FromChar(&argument); break; /* Pause at the end (-p) or set an additional param (-p#) (hidden option) */ case 'p': argument++; #ifndef ZSTD_NOBENCH if ((*argument>='0') && (*argument<='9')) { BMK_setAdditionalParam(readU32FromChar(&argument)); } else #endif main_pause=1; break; /* unknown command */ default : CLEAN_RETURN(badusage(programName)); } } continue; } /* if (argument[0]=='-') */ if (nextArgumentIsMaxDict) { nextArgumentIsMaxDict = 0; lastCommand = 0; maxDictSize = readU32FromChar(&argument); continue; } if (nextArgumentIsDictID) { nextArgumentIsDictID = 0; lastCommand = 0; dictID = readU32FromChar(&argument); continue; } } /* if (nextArgumentIsAFile==0) */ if (nextEntryIsDictionary) { nextEntryIsDictionary = 0; lastCommand = 0; dictFileName = argument; continue; } if (nextArgumentIsOutFileName) { nextArgumentIsOutFileName = 0; lastCommand = 0; outFileName = argument; if (!strcmp(outFileName, "-")) outFileName = stdoutmark; continue; } /* add filename to list */ filenameTable[filenameIdx++] = argument; } if (lastCommand) { DISPLAY("error : command must be followed by argument \n"); CLEAN_RETURN(1); } /* forgotten argument */ /* Welcome message (if verbose) */ DISPLAYLEVEL(3, WELCOME_MESSAGE); #ifdef _POSIX_C_SOURCE DISPLAYLEVEL(4, "_POSIX_C_SOURCE defined: %ldL\n", (long) _POSIX_C_SOURCE); #endif #ifdef _POSIX_VERSION DISPLAYLEVEL(4, "_POSIX_VERSION defined: %ldL\n", (long) _POSIX_VERSION); #endif #ifdef PLATFORM_POSIX_VERSION DISPLAYLEVEL(4, "PLATFORM_POSIX_VERSION defined: %ldL\n", (long) PLATFORM_POSIX_VERSION); #endif #ifdef UTIL_HAS_CREATEFILELIST if (recursive) { /* at this stage, filenameTable is a list of paths, which can contain both files and directories */ extendedFileList = UTIL_createFileList(filenameTable, filenameIdx, &fileNamesBuf, &fileNamesNb); if (extendedFileList) { unsigned u; for (u=0; u use stdin and stdout */ filenameIdx += !filenameIdx; /* filenameTable[0] is stdin by default */ if (!strcmp(filenameTable[0], stdinmark) && !outFileName) outFileName = stdoutmark; /* when input is stdin, default output is stdout */ /* Check if input/output defined as console; trigger an error in this case */ if (!strcmp(filenameTable[0], stdinmark) && IS_CONSOLE(stdin) ) CLEAN_RETURN(badusage(programName)); if (outFileName && !strcmp(outFileName, stdoutmark) && IS_CONSOLE(stdout) && strcmp(filenameTable[0], stdinmark) && !(forceStdout && (operation==zom_decompress))) CLEAN_RETURN(badusage(programName)); /* user-selected output filename, only possible with a single file */ if (outFileName && strcmp(outFileName,stdoutmark) && strcmp(outFileName,nulmark) && (filenameIdx>1)) { DISPLAY("Too many files (%u) on the command line. \n", filenameIdx); CLEAN_RETURN(filenameIdx); } #ifndef ZSTD_NOCOMPRESS /* check compression level limits */ { int const maxCLevel = ultra ? ZSTD_maxCLevel() : ZSTDCLI_CLEVEL_MAX; if (cLevel > maxCLevel) { DISPLAYLEVEL(2, "Warning : compression level higher than max, reduced to %i \n", maxCLevel); cLevel = maxCLevel; } } #endif /* No status message in pipe mode (stdin - stdout) or multi-files mode */ if (!strcmp(filenameTable[0], stdinmark) && outFileName && !strcmp(outFileName,stdoutmark) && (displayLevel==2)) displayLevel=1; if ((filenameIdx>1) & (displayLevel==2)) displayLevel=1; /* IO Stream/File */ FIO_setNotificationLevel(displayLevel); if (operation==zom_compress) { #ifndef ZSTD_NOCOMPRESS FIO_setNbThreads(nbThreads); FIO_setBlockSize((U32)blockSize); if (g_overlapLog!=OVERLAP_LOG_DEFAULT) FIO_setOverlapLog(g_overlapLog); if ((filenameIdx==1) && outFileName) operationResult = FIO_compressFilename(outFileName, filenameTable[0], dictFileName, cLevel, &compressionParams); else operationResult = FIO_compressMultipleFilenames(filenameTable, filenameIdx, outFileName ? outFileName : suffix, dictFileName, cLevel, &compressionParams); #else DISPLAY("Compression not supported\n"); #endif } else { /* decompression or test */ #ifndef ZSTD_NODECOMPRESS if (operation==zom_test) { outFileName=nulmark; FIO_setRemoveSrcFile(0); } /* test mode */ FIO_setMemLimit(memLimit); if (filenameIdx==1 && outFileName) operationResult = FIO_decompressFilename(outFileName, filenameTable[0], dictFileName); else operationResult = FIO_decompressMultipleFilenames(filenameTable, filenameIdx, outFileName ? outFileName : ZSTD_EXTENSION, dictFileName); #else DISPLAY("Decompression not supported\n"); #endif } _end: if (main_pause) waitEnter(); #ifdef UTIL_HAS_CREATEFILELIST if (extendedFileList) UTIL_freeFileList(extendedFileList, fileNamesBuf); else #endif free((void*)filenameTable); return operationResult; }