-/*
- checkFrame - verify frame headers
- Copyright (C) Yann Collet 2014-2016
-
- 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 :
- - LZ4 homepage : http://www.lz4.org
- - LZ4 source repository : https://github.com/lz4/lz4
-*/
-
-/*-************************************
-* Compiler specific
-**************************************/
-#ifdef _MSC_VER /* Visual Studio */
-# pragma warning(disable : 4127) /* disable: C4127: conditional expression is constant */
-# pragma warning(disable : 4146) /* disable: C4146: minus unsigned expression */
-#endif
-
-
-/*-************************************
-* Includes
-**************************************/
-#include "util.h" /* U32 */
-#include <stdlib.h> /* malloc, free */
-#include <stdio.h> /* fprintf */
-#include <string.h> /* strcmp */
-#include <time.h> /* clock_t, clock(), CLOCKS_PER_SEC */
-#include <assert.h>
-#include "lz4frame.h" /* include multiple times to test correctness/safety */
-#include "lz4frame.h"
-#define LZ4F_STATIC_LINKING_ONLY
-#include "lz4frame.h"
-#include "lz4frame.h"
-#include "lz4.h" /* LZ4_VERSION_STRING */
-#define XXH_STATIC_LINKING_ONLY
-#include "xxhash.h" /* XXH64 */
-
-
-/*-************************************
-* Constants
-**************************************/
-#define KB *(1U<<10)
-#define MB *(1U<<20)
-#define GB *(1U<<30)
-
-
-/*-************************************
-* Macros
-**************************************/
-#define DISPLAY(...) fprintf(stderr, __VA_ARGS__)
-#define DISPLAYLEVEL(l, ...) if (displayLevel>=l) { DISPLAY(__VA_ARGS__); }
-
-/**************************************
-* Exceptions
-***************************************/
-#ifndef DEBUG
-# define DEBUG 0
-#endif
-#define DEBUGOUTPUT(...) if (DEBUG) DISPLAY(__VA_ARGS__);
-#define EXM_THROW(error, ...) \
+ /*
+ checkFrame - verify frame headers
+ Copyright (C) Yann Collet 2014-2016
+
+ 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 :
+ - LZ4 homepage : http://www.lz4.org
+ - LZ4 source repository : https://github.com/lz4/lz4
+ */
+
+ /*-************************************
+ * Compiler specific
+ **************************************/
+ #ifdef _MSC_VER /* Visual Studio */
+ # pragma warning(disable : 4127) /* disable: C4127: conditional expression is constant */
+ # pragma warning(disable : 4146) /* disable: C4146: minus unsigned expression */
+ #endif
+
+
+ /*-************************************
+ * Includes
+ **************************************/
+ #include "util.h" /* U32 */
+ #include <stdlib.h> /* malloc, free */
+ #include <stdio.h> /* fprintf */
+ #include <string.h> /* strcmp */
+ #include <time.h> /* clock_t, clock(), CLOCKS_PER_SEC */
+ #include "lz4frame.h" /* include multiple times to test correctness/safety */
+ #include "lz4frame.h"
+ #define LZ4F_STATIC_LINKING_ONLY
+ #include "lz4frame.h"
+ #include "lz4frame.h"
+ #include "lz4.h" /* LZ4_VERSION_STRING */
+ #define XXH_STATIC_LINKING_ONLY
+ #include "xxhash.h" /* XXH64 */
+
+
+ /*-************************************
+ * Constants
+ **************************************/
+ #define KB *(1U<<10)
+ #define MB *(1U<<20)
+ #define GB *(1U<<30)
+
+
+ /*-************************************
+ * Macros
+ **************************************/
+ #define DISPLAY(...) fprintf(stderr, __VA_ARGS__)
+ #define DISPLAYLEVEL(l, ...) if (displayLevel>=l) { DISPLAY(__VA_ARGS__); }
+
+ /**************************************
+ * 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); \
+ return(error); \
}
#define MIN(a,b) ( (a) < (b) ? (a) : (b) )
#define MAX(a,b) ( (a) > (b) ? (a) : (b) )
-void frameCheck(const char *srcFileName, unsigned bsid, size_t blockSize)
+int frameCheck(FILE* const srcFile, unsigned bsid, size_t blockSize)
{
- FILE *srcFile;
LZ4F_decompressionContext_t dctx = NULL;
const size_t srcBufferSize = 4 MB;
- void *srcBuffer = malloc(srcBufferSize);
+ void* const srcBuffer = malloc(srcBufferSize);
const size_t dstBufferSize = 4 MB;
- void *dstBuffer = malloc(dstBufferSize);
+ void* const dstBuffer = malloc(dstBufferSize);
LZ4F_errorCode_t nextToLoad = 0;
size_t curblocksize = 0;
int partialBlock = 0;
- if (!srcBuffer || !dstBuffer) EXM_THROW(31, "Allocation error : not enough memory");
- srcFile = fopen(srcFileName, "rb");
- if ( srcFile==NULL ) EXM_THROW(1, "%s: %s \n", srcFileName, strerror(errno));
+ if (!srcBuffer || !dstBuffer) EXM_THROW(20, "Allocation error : not enough memory");
if (LZ4F_isError( LZ4F_createDecompressionContext(&dctx, LZ4F_VERSION) )) {
- EXM_THROW(32, "Unable to create decompression context");
+ EXM_THROW(21, "Unable to create decompression context");
}
/* Main Loop */
for (;;) {
curblocksize = 0;
remaining = readSize - pos;
nextToLoad = LZ4F_getFrameInfo(dctx, &frameInfo, (char*)(srcBuffer)+pos, &remaining);
- if (LZ4F_isError(nextToLoad)) EXM_THROW(66, "Error getting frame info: %s", LZ4F_getErrorName(nextToLoad)); /* XXX */
- if (frameInfo.blockSizeID != bsid) EXM_THROW(66, "Block size ID %u != expected %u", frameInfo.blockSizeID, bsid);
+ if (LZ4F_isError(nextToLoad)) EXM_THROW(22, "Error getting frame info: %s", LZ4F_getErrorName(nextToLoad)); /* XXX */
+ if (frameInfo.blockSizeID != bsid) EXM_THROW(23, "Block size ID %u != expected %u", frameInfo.blockSizeID, bsid);
pos += remaining;
/* nextToLoad should be block header size */
remaining = nextToLoad;
decodedBytes = dstBufferSize;
nextToLoad = LZ4F_decompress(dctx, dstBuffer, &decodedBytes, (char*)(srcBuffer)+pos, &remaining, NULL);
- if (LZ4F_isError(nextToLoad)) EXM_THROW(66, "Decompression error : %s", LZ4F_getErrorName(nextToLoad));
+ if (LZ4F_isError(nextToLoad)) EXM_THROW(24, "Decompression error : %s", LZ4F_getErrorName(nextToLoad));
pos += remaining;
}
decodedBytes = dstBufferSize;
remaining = nextToLoad;
}
nextToLoad = LZ4F_decompress(dctx, dstBuffer, &decodedBytes, (char*)(srcBuffer)+pos, &remaining, NULL);
- if (LZ4F_isError(nextToLoad)) EXM_THROW(66, "Decompression error : %s", LZ4F_getErrorName(nextToLoad));
+ if (LZ4F_isError(nextToLoad)) EXM_THROW(24, "Decompression error : %s", LZ4F_getErrorName(nextToLoad));
curblocksize += decodedBytes;
pos += remaining;
if (!partialBlock) {
/* detect small block due to end of frame; the final 4-byte frame checksum could be left in the buffer */
if ((curblocksize != 0) && (nextToLoad > 4)) {
- /* allow 4-byte fudge */
- if ((MAX(curblocksize, blockSize) - MIN(curblocksize, blockSize)) > 4)
- EXM_THROW(66, "Block size %zu != expected %zu", curblocksize, blockSize);
+ if (curblocksize != blockSize)
+ EXM_THROW(25, "Block size %zu != expected %zu, pos %zu\n", curblocksize, blockSize, pos);
}
curblocksize = 0;
}
}
}
/* can be out because readSize == 0, which could be an fread() error */
- if (ferror(srcFile)) EXM_THROW(67, "Read error");
+ if (ferror(srcFile)) EXM_THROW(26, "Read error");
- if (nextToLoad!=0) EXM_THROW(68, "Unfinished stream");
+ if (nextToLoad!=0) EXM_THROW(27, "Unfinished stream");
+ return 0;
}
int FUZ_usage(const char* programName)
DISPLAY( "\n");
DISPLAY( "Arguments :\n");
DISPLAY( " -b# : expected blocksizeID [4-7] (required)\n");
- DISPLAY( " -B# : expected blocksize [4-7] (required)\n");
+ DISPLAY( " -B# : expected blocksize [32-4194304] (required)\n");
DISPLAY( " -v : verbose\n");
DISPLAY( " -h : display help and exit\n");
return 0;
int main(int argc, const char** argv)
{
int argNb;
+ int err;
int bsid=0;
size_t blockSize=0;
const char* const programName = argv[0];
}
}
} else {
+ FILE *srcFile;
if (bsid == 0 || blockSize == 0)
return FUZ_usage(programName);
DISPLAY("Starting frame checker (%i-bits, %s)\n", (int)(sizeof(size_t)*8), LZ4_VERSION_STRING);
- frameCheck(argument, bsid, blockSize);
+ srcFile = fopen(argument, "rb");
+ if ( srcFile==NULL ) EXM_THROW(1, "%s: %s \n", argument, strerror(errno));
+ err = frameCheck(srcFile, bsid, blockSize);
+ fclose(srcFile);
+ return (err);
}
}
return 0;
projects / platform / upstream / lz4.git / commitdiff