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zstd/programs/legacy/fileio_legacy.c
inikep fca90f8f60 legacy decoder for v0.7 format
2016-07-25 17:49:08 +02:00

674 lines
23 KiB
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/*
fileio_legacy.c - File i/o handler for legacy format
Copyright (C) Yann Collet 2015-2016
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 : http://www.zstd.net
- zstd source repository : https://github.com/Cyan4973/zstd
*/
/*
Note : this file is not part of ZSTD compression library.
The license of ZSTD library is BSD.
The license of this file is GPLv2.
*/
/* *************************************
* Compiler Options
***************************************/
/* Disable some Visual warning messages */
#ifdef _MSC_VER
# define _CRT_SECURE_NO_WARNINGS
# define _CRT_SECURE_NO_DEPRECATE /* VS2005 */
# pragma warning(disable : 4127) /* disable: C4127: conditional expression is constant */
#endif
#define _FILE_OFFSET_BITS 64 /* Large file support on 32-bits unix */
#define _POSIX_SOURCE 1 /* enable fileno() within <stdio.h> on unix */
/* *************************************
* Includes
***************************************/
#include <stdio.h> /* fprintf, fopen, fread, _fileno, stdin, stdout */
#include <stdlib.h> /* malloc, free */
#include <string.h> /* strcmp, strlen */
#include <time.h> /* clock */
#include <errno.h> /* errno */
#include "mem.h"
#include "fileio_legacy.h"
#include "zstd_legacy.h" /* legacy support */
/* *************************************
* OS-specific Includes
***************************************/
#if defined(MSDOS) || defined(OS2) || defined(WIN32) || defined(_WIN32) || defined(__CYGWIN__)
# include <fcntl.h> /* _O_BINARY */
# include <io.h> /* _setmode, _isatty */
# ifdef __MINGW32__
/* int _fileno(FILE *stream); // seems no longer useful // MINGW somehow forgets to include this windows declaration into <stdio.h> */
# endif
# define SET_BINARY_MODE(file) { int unused = _setmode(_fileno(file), _O_BINARY); (void)unused; }
# define IS_CONSOLE(stdStream) _isatty(_fileno(stdStream))
#else
# include <unistd.h> /* isatty */
# define SET_BINARY_MODE(file)
# define IS_CONSOLE(stdStream) isatty(fileno(stdStream))
#endif
/* *************************************
* Constants
***************************************/
#define KB *(1U<<10)
#define MB *(1U<<20)
#define GB *(1U<<30)
#define _1BIT 0x01
#define _2BITS 0x03
#define _3BITS 0x07
#define _4BITS 0x0F
#define _6BITS 0x3F
#define _8BITS 0xFF
#define BIT6 0x40
#define BIT7 0x80
#define FIO_FRAMEHEADERSIZE 5 /* as a define, because needed to allocated table on stack */
#define FSE_CHECKSUM_SEED 0
#define CACHELINE 64
/* *************************************
* Macros
***************************************/
#define DISPLAY(...) fprintf(stderr, __VA_ARGS__)
#define DISPLAYLEVEL(l, ...) if (g_displayLevel>=l) { DISPLAY(__VA_ARGS__); }
static U32 g_displayLevel = 1; /* 0 : no display; 1: errors; 2 : + result + interaction + warnings; 3 : + progression; 4 : + information */
#define DISPLAYUPDATE(l, ...) if (g_displayLevel>=l) { \
if ((FIO_GetMilliSpan(g_time) > refreshRate) || (g_displayLevel>=4)) \
{ g_time = clock(); DISPLAY(__VA_ARGS__); \
if (g_displayLevel>=4) fflush(stdout); } }
static const unsigned refreshRate = 150;
static clock_t g_time = 0;
/* *************************************
* Local Parameters
***************************************/
void FIO_legacy_setNotificationLevel(unsigned level) { g_displayLevel=level; }
/* *************************************
* 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
***************************************/
static unsigned FIO_GetMilliSpan(clock_t nPrevious)
{
clock_t nCurrent = clock();
unsigned nSpan = (unsigned)(((nCurrent - nPrevious) * 1000) / CLOCKS_PER_SEC);
return nSpan;
}
unsigned long long FIOv01_decompressFrame(FILE* foutput, FILE* finput)
{
size_t const outBuffSize = 512 KB;
BYTE* outBuff = (BYTE*)malloc(outBuffSize);
size_t inBuffSize = 128 KB + 8;
BYTE inBuff[128 KB + 8];
BYTE* op = outBuff;
BYTE* const oend = outBuff + outBuffSize;
U64 filesize = 0;
size_t toRead;
size_t sizeCheck;
ZSTDv01_Dctx* dctx = ZSTDv01_createDCtx();
/* init */
if (outBuff==NULL) EXM_THROW(41, "Error : not enough memory to decode legacy frame");
/* restore header, already read from input */
MEM_writeLE32(inBuff, ZSTDv01_magicNumberLE);
sizeCheck = ZSTDv01_decompressContinue(dctx, NULL, 0, inBuff, sizeof(ZSTDv01_magicNumberLE)); /* Decode frame header */
if (ZSTDv01_isError(sizeCheck)) EXM_THROW(42, "Error decoding legacy header");
/* Main decompression Loop */
toRead = ZSTDv01_nextSrcSizeToDecompress(dctx);
while (toRead){
size_t readSize, decodedSize;
/* Fill input buffer */
if (toRead > inBuffSize)
EXM_THROW(43, "too large block");
readSize = fread(inBuff, 1, toRead, finput);
if (readSize != toRead)
EXM_THROW(44, "Read error");
/* Decode block */
decodedSize = ZSTDv01_decompressContinue(dctx, op, oend-op, inBuff, readSize);
if (ZSTDv01_isError(decodedSize)) EXM_THROW(45, "Decoding error : input corrupted");
if (decodedSize) { /* not a header */
/* Write block */
sizeCheck = fwrite(op, 1, decodedSize, foutput);
if (sizeCheck != decodedSize) EXM_THROW(46, "Write error : unable to write data block to destination file");
filesize += decodedSize;
op += decodedSize;
if (op==oend) op = outBuff;
DISPLAYUPDATE(2, "\rDecoded : %u MB... ", (U32)(filesize>>20) );
}
/* prepare for next Block */
toRead = ZSTDv01_nextSrcSizeToDecompress(dctx);
}
/* release resources */
free(outBuff);
free(dctx);
return filesize;
}
unsigned long long FIOv02_decompressFrame(FILE* foutput, FILE* finput)
{
size_t const outBuffSize = 512 KB;
BYTE* outBuff = (BYTE*)malloc(outBuffSize);
size_t inBuffSize = 128 KB + 8;
BYTE inBuff[128 KB + 8];
BYTE* op = outBuff;
BYTE* const oend = outBuff + outBuffSize;
U64 filesize = 0;
size_t toRead;
size_t sizeCheck;
ZSTDv02_Dctx* dctx = ZSTDv02_createDCtx();
/* init */
if (outBuff==NULL) EXM_THROW(41, "Error : not enough memory to decode legacy frame");
/* restore header, already read from input */
MEM_writeLE32(inBuff, ZSTDv02_magicNumber);
sizeCheck = ZSTDv02_decompressContinue(dctx, NULL, 0, inBuff, sizeof(ZSTDv02_magicNumber)); /* Decode frame header */
if (ZSTDv02_isError(sizeCheck)) EXM_THROW(42, "Error decoding legacy header");
/* Main decompression Loop */
toRead = ZSTDv02_nextSrcSizeToDecompress(dctx);
while (toRead) {
size_t readSize, decodedSize;
/* Fill input buffer */
if (toRead > inBuffSize)
EXM_THROW(43, "too large block");
readSize = fread(inBuff, 1, toRead, finput);
if (readSize != toRead)
EXM_THROW(44, "Read error");
/* Decode block */
decodedSize = ZSTDv02_decompressContinue(dctx, op, oend-op, inBuff, readSize);
if (ZSTDv02_isError(decodedSize)) EXM_THROW(45, "Decoding error : input corrupted");
if (decodedSize) { /* not a header */
/* Write block */
sizeCheck = fwrite(op, 1, decodedSize, foutput);
if (sizeCheck != decodedSize) EXM_THROW(46, "Write error : unable to write data block to destination file");
filesize += decodedSize;
op += decodedSize;
if (op==oend) op = outBuff;
DISPLAYUPDATE(2, "\rDecoded : %u MB... ", (U32)(filesize>>20) );
}
/* prepare for next Block */
toRead = ZSTDv02_nextSrcSizeToDecompress(dctx);
}
/* release resources */
free(outBuff);
free(dctx);
return filesize;
}
unsigned long long FIOv03_decompressFrame(FILE* foutput, FILE* finput)
{
size_t const outBuffSize = 512 KB;
BYTE* outBuff = (BYTE*)malloc(outBuffSize);
size_t inBuffSize = 128 KB + 8;
BYTE inBuff[128 KB + 8];
BYTE* op = outBuff;
BYTE* const oend = outBuff + outBuffSize;
U64 filesize = 0;
size_t toRead;
size_t sizeCheck;
ZSTDv03_Dctx* dctx = ZSTDv03_createDCtx();
/* init */
if (outBuff==NULL) EXM_THROW(41, "Error : not enough memory to decode legacy frame");
/* restore header, already read from input */
MEM_writeLE32(inBuff, ZSTDv03_magicNumber);
sizeCheck = ZSTDv03_decompressContinue(dctx, NULL, 0, inBuff, sizeof(ZSTDv03_magicNumber)); /* Decode frame header */
if (ZSTDv03_isError(sizeCheck)) EXM_THROW(42, "Error decoding legacy header");
/* Main decompression Loop */
toRead = ZSTDv03_nextSrcSizeToDecompress(dctx);
while (toRead) {
size_t readSize, decodedSize;
/* Fill input buffer */
if (toRead > inBuffSize)
EXM_THROW(43, "too large block");
readSize = fread(inBuff, 1, toRead, finput);
if (readSize != toRead)
EXM_THROW(44, "Read error");
/* Decode block */
decodedSize = ZSTDv03_decompressContinue(dctx, op, oend-op, inBuff, readSize);
if (ZSTDv03_isError(decodedSize)) EXM_THROW(45, "Decoding error : input corrupted");
if (decodedSize) { /* not a header */
/* Write block */
sizeCheck = fwrite(op, 1, decodedSize, foutput);
if (sizeCheck != decodedSize) EXM_THROW(46, "Write error : unable to write data block to destination file");
filesize += decodedSize;
op += decodedSize;
if (op==oend) op = outBuff;
DISPLAYUPDATE(2, "\rDecoded : %u MB... ", (U32)(filesize>>20) );
}
/* prepare for next Block */
toRead = ZSTDv03_nextSrcSizeToDecompress(dctx);
}
/* release resources */
free(outBuff);
free(dctx);
return filesize;
}
/*===== v0.4.x =====*/
typedef struct {
void* srcBuffer;
size_t srcBufferSize;
void* dstBuffer;
size_t dstBufferSize;
void* dictBuffer;
size_t dictBufferSize;
ZBUFFv04_DCtx* dctx;
} dRessv04_t;
static dRessv04_t FIOv04_createDResources(void)
{
dRessv04_t ress;
/* init */
ress.dctx = ZBUFFv04_createDCtx();
if (ress.dctx==NULL) EXM_THROW(60, "Can't create ZBUFF decompression context");
ress.dictBuffer = NULL; ress.dictBufferSize=0;
/* Allocate Memory */
ress.srcBufferSize = ZBUFFv04_recommendedDInSize();
ress.srcBuffer = malloc(ress.srcBufferSize);
ress.dstBufferSize = ZBUFFv04_recommendedDOutSize();
ress.dstBuffer = malloc(ress.dstBufferSize);
if (!ress.srcBuffer || !ress.dstBuffer) EXM_THROW(61, "Allocation error : not enough memory");
return ress;
}
static void FIOv04_freeDResources(dRessv04_t ress)
{
size_t errorCode = ZBUFFv04_freeDCtx(ress.dctx);
if (ZBUFFv04_isError(errorCode)) EXM_THROW(69, "Error : can't free ZBUFF context resource : %s", ZBUFFv04_getErrorName(errorCode));
free(ress.srcBuffer);
free(ress.dstBuffer);
free(ress.dictBuffer);
}
unsigned long long FIOv04_decompressFrame(dRessv04_t ress,
FILE* foutput, FILE* finput)
{
U64 frameSize = 0;
size_t readSize = 4;
MEM_writeLE32(ress.srcBuffer, ZSTDv04_magicNumber);
ZBUFFv04_decompressInit(ress.dctx);
ZBUFFv04_decompressWithDictionary(ress.dctx, ress.dictBuffer, ress.dictBufferSize);
while (1) {
/* Decode */
size_t sizeCheck;
size_t inSize=readSize, decodedSize=ress.dstBufferSize;
size_t toRead = ZBUFFv04_decompressContinue(ress.dctx, ress.dstBuffer, &decodedSize, ress.srcBuffer, &inSize);
if (ZBUFFv04_isError(toRead)) EXM_THROW(36, "Decoding error : %s", ZBUFFv04_getErrorName(toRead));
readSize -= inSize;
/* Write block */
sizeCheck = fwrite(ress.dstBuffer, 1, decodedSize, foutput);
if (sizeCheck != decodedSize) EXM_THROW(37, "Write error : unable to write data block to destination file");
frameSize += decodedSize;
DISPLAYUPDATE(2, "\rDecoded : %u MB... ", (U32)(frameSize>>20) );
if (toRead == 0) break;
if (readSize) EXM_THROW(38, "Decoding error : should consume entire input");
/* Fill input buffer */
if (toRead > ress.srcBufferSize) EXM_THROW(34, "too large block");
readSize = fread(ress.srcBuffer, 1, toRead, finput);
if (readSize != toRead) EXM_THROW(35, "Read error");
}
return frameSize;
}
/*===== v0.5.x =====*/
typedef struct {
void* srcBuffer;
size_t srcBufferSize;
void* dstBuffer;
size_t dstBufferSize;
const void* dictBuffer;
size_t dictBufferSize;
ZBUFFv05_DCtx* dctx;
} dRessv05_t;
static dRessv05_t FIOv05_createDResources(void)
{
dRessv05_t ress;
/* init */
ress.dctx = ZBUFFv05_createDCtx();
if (ress.dctx==NULL) EXM_THROW(60, "Can't create ZBUFF decompression context");
ress.dictBuffer = NULL; ress.dictBufferSize=0;
/* Allocate Memory */
ress.srcBufferSize = ZBUFFv05_recommendedDInSize();
ress.srcBuffer = malloc(ress.srcBufferSize);
ress.dstBufferSize = ZBUFFv05_recommendedDOutSize();
ress.dstBuffer = malloc(ress.dstBufferSize);
if (!ress.srcBuffer || !ress.dstBuffer) EXM_THROW(61, "Allocation error : not enough memory");
return ress;
}
static void FIOv05_freeDResources(dRessv05_t ress)
{
size_t const errorCode = ZBUFFv05_freeDCtx(ress.dctx);
if (ZBUFFv05_isError(errorCode)) EXM_THROW(69, "Error : can't free ZBUFF context resource : %s", ZBUFFv05_getErrorName(errorCode));
free(ress.srcBuffer);
free(ress.dstBuffer);
}
unsigned long long FIOv05_decompressFrame(dRessv05_t ress,
FILE* foutput, FILE* finput)
{
U64 frameSize = 0;
size_t readSize = 4;
MEM_writeLE32(ress.srcBuffer, ZSTDv05_MAGICNUMBER);
ZBUFFv05_decompressInitDictionary(ress.dctx, ress.dictBuffer, ress.dictBufferSize);
while (1) {
/* Decode */
size_t inSize=readSize, decodedSize=ress.dstBufferSize;
size_t toRead = ZBUFFv05_decompressContinue(ress.dctx, ress.dstBuffer, &decodedSize, ress.srcBuffer, &inSize);
if (ZBUFFv05_isError(toRead)) EXM_THROW(36, "Decoding error : %s", ZBUFFv05_getErrorName(toRead));
readSize -= inSize;
/* Write block */
{ size_t const sizeCheck = fwrite(ress.dstBuffer, 1, decodedSize, foutput);
if (sizeCheck != decodedSize) EXM_THROW(37, "Write error : unable to write data block to destination file"); }
frameSize += decodedSize;
DISPLAYUPDATE(2, "\rDecoded : %u MB... ", (U32)(frameSize>>20) );
if (toRead == 0) break;
if (readSize) EXM_THROW(38, "Decoding error : should consume entire input");
/* Fill input buffer */
if (toRead > ress.srcBufferSize) EXM_THROW(34, "too large block");
readSize = fread(ress.srcBuffer, 1, toRead, finput);
if (readSize != toRead) EXM_THROW(35, "Read error");
}
return frameSize;
}
/*===== v0.6.x =====*/
typedef struct {
void* srcBuffer;
size_t srcBufferSize;
void* dstBuffer;
size_t dstBufferSize;
const void* dictBuffer;
size_t dictBufferSize;
ZBUFFv06_DCtx* dctx;
} dRessv06_t;
static dRessv06_t FIOv06_createDResources(void)
{
dRessv06_t ress;
/* init */
ress.dctx = ZBUFFv06_createDCtx();
if (ress.dctx==NULL) EXM_THROW(60, "Can't create ZBUFF decompression context");
ress.dictBuffer = NULL; ress.dictBufferSize=0;
/* Allocate Memory */
ress.srcBufferSize = ZBUFFv06_recommendedDInSize();
ress.srcBuffer = malloc(ress.srcBufferSize);
ress.dstBufferSize = ZBUFFv06_recommendedDOutSize();
ress.dstBuffer = malloc(ress.dstBufferSize);
if (!ress.srcBuffer || !ress.dstBuffer) EXM_THROW(61, "Allocation error : not enough memory");
return ress;
}
static void FIOv06_freeDResources(dRessv06_t ress)
{
size_t const errorCode = ZBUFFv06_freeDCtx(ress.dctx);
if (ZBUFFv06_isError(errorCode)) EXM_THROW(69, "Error : can't free ZBUFF context resource : %s", ZBUFFv06_getErrorName(errorCode));
free(ress.srcBuffer);
free(ress.dstBuffer);
}
unsigned long long FIOv06_decompressFrame(dRessv06_t ress,
FILE* foutput, FILE* finput)
{
U64 frameSize = 0;
size_t readSize = 4;
MEM_writeLE32(ress.srcBuffer, ZSTDv06_MAGICNUMBER);
ZBUFFv06_decompressInitDictionary(ress.dctx, ress.dictBuffer, ress.dictBufferSize);
while (1) {
/* Decode */
size_t inSize=readSize, decodedSize=ress.dstBufferSize;
size_t toRead = ZBUFFv06_decompressContinue(ress.dctx, ress.dstBuffer, &decodedSize, ress.srcBuffer, &inSize);
if (ZBUFFv06_isError(toRead)) EXM_THROW(36, "Decoding error : %s", ZBUFFv06_getErrorName(toRead));
readSize -= inSize;
/* Write block */
{ size_t const sizeCheck = fwrite(ress.dstBuffer, 1, decodedSize, foutput);
if (sizeCheck != decodedSize) EXM_THROW(37, "Write error : unable to write data block to destination file"); }
frameSize += decodedSize;
DISPLAYUPDATE(2, "\rDecoded : %u MB... ", (U32)(frameSize>>20) );
if (toRead == 0) break;
if (readSize) EXM_THROW(38, "Decoding error : should consume entire input");
/* Fill input buffer */
if (toRead > ress.srcBufferSize) EXM_THROW(34, "too large block");
readSize = fread(ress.srcBuffer, 1, toRead, finput);
if (readSize != toRead) EXM_THROW(35, "Read error");
}
return frameSize;
}
/*===== v0.7.x =====*/
typedef struct {
void* srcBuffer;
size_t srcBufferSize;
void* dstBuffer;
size_t dstBufferSize;
const void* dictBuffer;
size_t dictBufferSize;
ZBUFFv07_DCtx* dctx;
} dRessv07_t;
static dRessv07_t FIOv07_createDResources(void)
{
dRessv07_t ress;
/* init */
ress.dctx = ZBUFFv07_createDCtx();
if (ress.dctx==NULL) EXM_THROW(60, "Can't create ZBUFF decompression context");
ress.dictBuffer = NULL; ress.dictBufferSize=0;
/* Allocate Memory */
ress.srcBufferSize = ZBUFFv07_recommendedDInSize();
ress.srcBuffer = malloc(ress.srcBufferSize);
ress.dstBufferSize = ZBUFFv07_recommendedDOutSize();
ress.dstBuffer = malloc(ress.dstBufferSize);
if (!ress.srcBuffer || !ress.dstBuffer) EXM_THROW(61, "Allocation error : not enough memory");
return ress;
}
static void FIOv07_freeDResources(dRessv07_t ress)
{
size_t const errorCode = ZBUFFv07_freeDCtx(ress.dctx);
if (ZBUFFv07_isError(errorCode)) EXM_THROW(69, "Error : can't free ZBUFF context resource : %s", ZBUFFv07_getErrorName(errorCode));
free(ress.srcBuffer);
free(ress.dstBuffer);
}
unsigned long long FIOv07_decompressFrame(dRessv07_t ress,
FILE* foutput, FILE* finput)
{
U64 frameSize = 0;
size_t readSize = 4;
MEM_writeLE32(ress.srcBuffer, ZSTDv07_MAGICNUMBER);
ZBUFFv07_decompressInitDictionary(ress.dctx, ress.dictBuffer, ress.dictBufferSize);
while (1) {
/* Decode */
size_t inSize=readSize, decodedSize=ress.dstBufferSize;
size_t toRead = ZBUFFv07_decompressContinue(ress.dctx, ress.dstBuffer, &decodedSize, ress.srcBuffer, &inSize);
if (ZBUFFv07_isError(toRead)) EXM_THROW(36, "Decoding error : %s", ZBUFFv07_getErrorName(toRead));
readSize -= inSize;
/* Write block */
{ size_t const sizeCheck = fwrite(ress.dstBuffer, 1, decodedSize, foutput);
if (sizeCheck != decodedSize) EXM_THROW(37, "Write error : unable to write data block to destination file"); }
frameSize += decodedSize;
DISPLAYUPDATE(2, "\rDecoded : %u MB... ", (U32)(frameSize>>20) );
if (toRead == 0) break;
if (readSize) EXM_THROW(38, "Decoding error : should consume entire input");
/* Fill input buffer */
if (toRead > ress.srcBufferSize) EXM_THROW(34, "too large block");
readSize = fread(ress.srcBuffer, 1, toRead, finput);
if (readSize != toRead) EXM_THROW(35, "Read error");
}
return frameSize;
}
/*===== General legacy dispatcher =====*/
unsigned long long FIO_decompressLegacyFrame(FILE* foutput, FILE* finput,
const void* dictBuffer, size_t dictSize,
U32 magicNumberLE)
{
switch(magicNumberLE)
{
case ZSTDv01_magicNumberLE :
return FIOv01_decompressFrame(foutput, finput);
case ZSTDv02_magicNumber :
return FIOv02_decompressFrame(foutput, finput);
case ZSTDv03_magicNumber :
return FIOv03_decompressFrame(foutput, finput);
case ZSTDv04_magicNumber :
{ dRessv04_t r = FIOv04_createDResources();
unsigned long long const s = FIOv04_decompressFrame(r, foutput, finput);
FIOv04_freeDResources(r);
return s;
}
case ZSTDv05_MAGICNUMBER :
{ dRessv05_t r = FIOv05_createDResources();
r.dictBuffer = dictBuffer;
r.dictBufferSize = dictSize;
{ unsigned long long const s = FIOv05_decompressFrame(r, foutput, finput);
FIOv05_freeDResources(r);
return s;
} }
case ZSTDv06_MAGICNUMBER :
{ dRessv06_t r = FIOv06_createDResources();
r.dictBuffer = dictBuffer;
r.dictBufferSize = dictSize;
{ unsigned long long const s = FIOv06_decompressFrame(r, foutput, finput);
FIOv06_freeDResources(r);
return s;
} }
case ZSTDv07_MAGICNUMBER :
{ dRessv07_t r = FIOv07_createDResources();
r.dictBuffer = dictBuffer;
r.dictBufferSize = dictSize;
{ unsigned long long const s = FIOv07_decompressFrame(r, foutput, finput);
FIOv07_freeDResources(r);
return s;
} }
default :
return ERROR(prefix_unknown);
}
}
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