int main(int argc, char** argv)
{
int i,
bench=0,
decode=0,
forceStdout=0,
main_pause=0,
rangeBench = 1;
unsigned fileNameStart = 0;
unsigned nbFiles = 0;
unsigned cLevel = 1;
const char* programName = argv[0];
const char* inFileName = NULL;
const char* outFileName = NULL;
char* dynNameSpace = NULL;
char extension[] = ZSTD_EXTENSION;
displayOut = stderr;
/* Pick out basename component. Don't rely on stdlib because of conflicting behavior. */
for (i = (int)strlen(programName); i > 0; i--)
{
if (programName[i] == '/') { i++; break; }
}
programName += i;
/* zstdcat preset behavior */
if (!strcmp(programName, ZSTD_CAT)) { decode=1; forceStdout=1; displayLevel=1; outFileName=stdoutmark; }
/* unzstd preset behavior */
if (!strcmp(programName, ZSTD_UNZSTD))
decode=1;
/* command switches */
for(i=1; i<argc; i++)
{
char* argument = argv[i];
if(!argument) continue; /* Protection if argument empty */
/* long commands (--long-word) */
if (!strcmp(argument, "--version")) { displayOut=stdout; DISPLAY(WELCOME_MESSAGE); return 0; }
if (!strcmp(argument, "--help")) { displayOut=stdout; return usage_advanced(programName); }
if (!strcmp(argument, "--verbose")) { displayLevel=4; continue; }
/* Decode commands (note : aggregated commands are allowed) */
if (argument[0]=='-')
{
/* '-' means stdin/stdout */
if (argument[1]==0)
{
if (!inFileName) inFileName=stdinmark;
else outFileName=stdoutmark;
continue;
}
argument++;
while (argument[0]!=0)
{
/* compression Level */
if ((*argument>='0') && (*argument<='9'))
{
cLevel = 0;
while ((*argument >= '0') && (*argument <= '9'))
{
cLevel *= 10;
cLevel += *argument - '0';
argument++;
}
continue;
}
switch(argument[0])
{
/* Display help */
case 'V': displayOut=stdout; DISPLAY(WELCOME_MESSAGE); return 0; /* Version Only */
case 'H':
case 'h': displayOut=stdout; return usage_advanced(programName);
/* Compression (default) */
//case 'z': forceCompress = 1; break;
/* Decoding */
case 'd': decode=1; argument++; break;
/* Force stdout, even if stdout==console */
case 'c': forceStdout=1; outFileName=stdoutmark; displayLevel=1; argument++; break;
// Test
//case 't': decode=1; LZ4IO_setOverwrite(1); output_filename=nulmark; break;
/* Overwrite */
case 'f': FIO_overwriteMode(); argument++; break;
/* Verbose mode */
case 'v': displayLevel=4; argument++; break;
/* Quiet mode */
case 'q': displayLevel--; argument++; break;
/* keep source file (default anyway, so useless; only for xz/lzma compatibility) */
case 'k': argument++; break;
/* Benchmark */
case 'b': bench=1; argument++; break;
/* Modify Nb Iterations (benchmark only) */
case 'i':
{
int iters= 0;
argument++;
while ((*argument >='0') && (*argument <='9'))
iters *= 10, iters += *argument++ - '0';
BMK_SetNbIterations(iters);
}
break;
/* cut input into blocks (benchmark only) */
case 'B':
{
size_t bSize = 0;
argument++;
while ((*argument >='0') && (*argument <='9'))
bSize *= 10, bSize += *argument++ - '0';
if (*argument=='K') bSize<<=10, argument++; /* allows using KB notation */
if (*argument=='M') bSize<<=20, argument++;
if (*argument=='B') argument++;
BMK_SetBlockSize(bSize);
}
break;
/* range bench (benchmark only) */
case 'r':
rangeBench = -1;
argument++;
break;
/* Pause at the end (hidden option) */
case 'p': main_pause=1; argument++; break;
/* unknown command */
default : return badusage(programName);
}
}
continue;
}
/* first provided filename is input */
if (!inFileName) { inFileName = argument; fileNameStart = i; nbFiles = argc-i; continue; }
/* second provided filename is output */
if (!outFileName)
{
outFileName = argument;
if (!strcmp (outFileName, nullString)) outFileName = nulmark;
continue;
}
}
/* Welcome message (if verbose) */
DISPLAYLEVEL(3, WELCOME_MESSAGE);
/* No input filename ==> use stdin */
if(!inFileName) { inFileName=stdinmark; }
/* Check if input defined as console; trigger an error in this case */
if (!strcmp(inFileName, stdinmark) && IS_CONSOLE(stdin) ) return badusage(programName);
/* Check if benchmark is selected */
if (bench) { BMK_benchFiles(argv+fileNameStart, nbFiles, cLevel*rangeBench); goto _end; }
/* No output filename ==> try to select one automatically (when possible) */
while (!outFileName)
{
if (!IS_CONSOLE(stdout)) { outFileName=stdoutmark; break; } /* Default to stdout whenever possible (i.e. not a console) */
if (!decode) /* compression to file */
{
size_t l = strlen(inFileName);
dynNameSpace = (char*)calloc(1,l+5);
if (dynNameSpace==NULL) { DISPLAY("not enough memory\n"); exit(1); }
strcpy(dynNameSpace, inFileName);
strcpy(dynNameSpace+l, ZSTD_EXTENSION);
outFileName = dynNameSpace;
DISPLAYLEVEL(2, "Compressed filename will be : %s \n", outFileName);
break;
}
/* decompression to file (automatic name will work only if input filename has correct format extension) */
{
size_t outl;
size_t inl = strlen(inFileName);
dynNameSpace = (char*)calloc(1,inl+1);
if (dynNameSpace==NULL) { DISPLAY("not enough memory\n"); exit(1); }
outFileName = dynNameSpace;
strcpy(dynNameSpace, inFileName);
outl = inl;
if (inl>4)
while ((outl >= inl-4) && (inFileName[outl] == extension[outl-inl+4])) dynNameSpace[outl--]=0;
if (outl != inl-5) { DISPLAYLEVEL(1, "Cannot determine an output filename\n"); return badusage(programName); }
DISPLAYLEVEL(2, "Decoding file %s \n", outFileName);
}
}
/* Check if output is defined as console; trigger an error in this case */
if (!strcmp(outFileName,stdoutmark) && IS_CONSOLE(stdout) && !forceStdout) return badusage(programName);
/* No warning message in pure pipe mode (stdin + stdout) */
if (!strcmp(inFileName, stdinmark) && !strcmp(outFileName,stdoutmark) && (displayLevel==2)) displayLevel=1;
/* IO Stream/File */
FIO_setNotificationLevel(displayLevel);
if (decode)
FIO_decompressFilename(outFileName, inFileName);
else
FIO_compressFilename(outFileName, inFileName, cLevel);
_end:
if (main_pause) waitEnter();
free(dynNameSpace);
return 0;
}
int main(int argCount, const char** argv)
{
int argNb,
bench=0,
decode=0,
testmode=0,
forceStdout=0,
main_pause=0,
nextEntryIsDictionary=0,
operationResult=0,
dictBuild=0,
nextArgumentIsOutFileName=0,
nextArgumentIsMaxDict=0,
nextArgumentIsDictID=0,
nextArgumentIsFile=0;
int cLevel = ZSTDCLI_CLEVEL_DEFAULT;
int cLevelLast = 1;
unsigned recursive = 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;
char* dynNameSpace = NULL;
unsigned maxDictSize = g_defaultMaxDictSize;
unsigned dictID = 0;
int dictCLevel = g_defaultDictCLevel;
unsigned dictSelect = g_defaultSelectivityLevel;
#ifdef UTIL_HAS_CREATEFILELIST
const char** fileNamesTable = NULL;
char* fileNamesBuf = NULL;
unsigned fileNamesNb;
#endif
/* init */
(void)recursive; (void)cLevelLast; /* not used when ZSTD_NOBENCH set */
(void)dictCLevel; (void)dictSelect; (void)dictID; /* not used when ZSTD_NODICT set */
(void)decode; (void)cLevel; /* not used when ZSTD_NOCOMPRESS 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)) decode=1;
if (!strcmp(programName, ZSTD_CAT)) { decode=1; forceStdout=1; displayLevel=1; outFileName=stdoutmark; }
/* command switches */
for(argNb=1; argNb<argCount; argNb++) {
const char* argument = argv[argNb];
if(!argument) continue; /* Protection if argument empty */
if (nextArgumentIsFile==0) {
/* long commands (--long-word) */
if (!strcmp(argument, "--")) { nextArgumentIsFile=1; continue; }
if (!strcmp(argument, "--decompress")) { decode=1; continue; }
if (!strcmp(argument, "--force")) { FIO_overwriteMode(); continue; }
if (!strcmp(argument, "--version")) { displayOut=stdout; DISPLAY(WELCOME_MESSAGE); CLEAN_RETURN(0); }
if (!strcmp(argument, "--help")) { displayOut=stdout; CLEAN_RETURN(usage_advanced(programName)); }
if (!strcmp(argument, "--verbose")) { displayLevel++; continue; }
if (!strcmp(argument, "--quiet")) { displayLevel--; continue; }
if (!strcmp(argument, "--stdout")) { forceStdout=1; outFileName=stdoutmark; displayLevel-=(displayLevel==2); continue; }
if (!strcmp(argument, "--ultra")) { FIO_setMaxWLog(0); continue; }
if (!strcmp(argument, "--check")) { FIO_setChecksumFlag(2); continue; }
if (!strcmp(argument, "--no-check")) { FIO_setChecksumFlag(0); continue; }
if (!strcmp(argument, "--no-dictID")) { FIO_setDictIDFlag(0); continue; }
if (!strcmp(argument, "--sparse")) { FIO_setSparseWrite(2); continue; }
if (!strcmp(argument, "--no-sparse")) { FIO_setSparseWrite(0); continue; }
if (!strcmp(argument, "--test")) { testmode=1; decode=1; continue; }
if (!strcmp(argument, "--train")) { dictBuild=1; outFileName=g_defaultDictName; continue; }
if (!strcmp(argument, "--maxdict")) { nextArgumentIsMaxDict=1; continue; }
if (!strcmp(argument, "--dictID")) { nextArgumentIsDictID=1; continue; }
if (!strcmp(argument, "--keep")) { FIO_setRemoveSrcFile(0); continue; }
if (!strcmp(argument, "--rm")) { FIO_setRemoveSrcFile(1); continue; }
/* '-' means stdin/stdout */
if (!strcmp(argument, "-")){
if (!filenameIdx) {
filenameIdx=1, filenameTable[0]=stdinmark;
outFileName=stdoutmark;
displayLevel-=(displayLevel==2);
continue;
} }
/* Decode commands (note : aggregated commands are allowed) */
if (argument[0]=='-') {
argument++;
while (argument[0]!=0) {
#ifndef ZSTD_NOCOMPRESS
/* compression Level */
if ((*argument>='0') && (*argument<='9')) {
cLevel = readU32FromChar(&argument);
dictCLevel = cLevel;
if (dictCLevel > ZSTD_maxCLevel())
CLEAN_RETURN(badusage(programName));
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));
/* Decoding */
case 'd': decode=1; argument++; break;
/* Force stdout, even if stdout==console */
case 'c': forceStdout=1; outFileName=stdoutmark; displayLevel-=(displayLevel==2); argument++; break;
/* Use file content as dictionary */
case 'D': nextEntryIsDictionary = 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': testmode=1; decode=1; argument++; break;
/* destination file name */
case 'o': nextArgumentIsOutFileName=1; argument++; break;
/* recursive */
case 'r': recursive=1; argument++; break;
#ifndef ZSTD_NOBENCH
/* Benchmark */
case 'b': bench=1; argument++; break;
/* range bench (benchmark only) */
case 'e':
/* compression Level */
argument++;
cLevelLast = readU32FromChar(&argument);
break;
/* Modify Nb Iterations (benchmark only) */
case 'i':
argument++;
{ U32 const iters = readU32FromChar(&argument);
BMK_setNotificationLevel(displayLevel);
BMK_SetNbIterations(iters);
}
break;
/* cut input into blocks (benchmark only) */
case 'B':
argument++;
{ size_t bSize = readU32FromChar(&argument);
if (toupper(*argument)=='K') bSize<<=10, argument++; /* allows using KB notation */
if (toupper(*argument)=='M') bSize<<=20, argument++;
if (toupper(*argument)=='B') argument++;
BMK_setNotificationLevel(displayLevel);
BMK_SetBlockSize(bSize);
}
break;
#endif /* ZSTD_NOBENCH */
/* 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;
maxDictSize = readU32FromChar(&argument);
if (toupper(*argument)=='K') maxDictSize <<= 10;
if (toupper(*argument)=='M') maxDictSize <<= 20;
continue;
}
if (nextArgumentIsDictID) {
nextArgumentIsDictID = 0;
dictID = readU32FromChar(&argument);
continue;
}
} /* if (nextArgumentIsAFile==0) */
if (nextEntryIsDictionary) {
nextEntryIsDictionary = 0;
dictFileName = argument;
continue;
}
if (nextArgumentIsOutFileName) {
nextArgumentIsOutFileName = 0;
outFileName = argument;
if (!strcmp(outFileName, "-")) outFileName = stdoutmark;
continue;
}
/* add filename to list */
filenameTable[filenameIdx++] = argument;
}
/* Welcome message (if verbose) */
DISPLAYLEVEL(3, WELCOME_MESSAGE);
#ifdef UTIL_HAS_CREATEFILELIST
if (recursive) {
fileNamesTable = UTIL_createFileList(filenameTable, filenameIdx, &fileNamesBuf, &fileNamesNb);
if (fileNamesTable) {
unsigned i;
for (i=0; i<fileNamesNb; i++) DISPLAYLEVEL(4, "%d %s\n", i, fileNamesTable[i]);
free((void*)filenameTable);
filenameTable = fileNamesTable;
filenameIdx = fileNamesNb;
}
}
#endif
/* Check if benchmark is selected */
if (bench) {
#ifndef ZSTD_NOBENCH
BMK_setNotificationLevel(displayLevel);
BMK_benchFiles(filenameTable, filenameIdx, dictFileName, cLevel, cLevelLast);
#endif
goto _end;
}
/* Check if dictionary builder is selected */
if (dictBuild) {
#ifndef ZSTD_NODICT
ZDICT_params_t dictParams;
memset(&dictParams, 0, sizeof(dictParams));
dictParams.compressionLevel = dictCLevel;
dictParams.selectivityLevel = dictSelect;
dictParams.notificationLevel = displayLevel;
dictParams.dictID = dictID;
DiB_trainFromFiles(outFileName, maxDictSize, filenameTable, filenameIdx, dictParams);
#endif
goto _end;
}
/* No input filename ==> use stdin and stdout */
filenameIdx += !filenameIdx; /*< default input is stdin */
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) && !(forceStdout && decode))
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);
}
/* No warning message in pipe mode (stdin + stdout) or multiple 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);
#ifndef ZSTD_NOCOMPRESS
if (!decode) {
if (filenameIdx==1 && outFileName)
operationResult = FIO_compressFilename(outFileName, filenameTable[0], dictFileName, cLevel);
else
operationResult = FIO_compressMultipleFilenames(filenameTable, filenameIdx, outFileName ? outFileName : ZSTD_EXTENSION, dictFileName, cLevel);
} else
#endif
{ /* decompression */
#ifndef ZSTD_NODECOMPRESS
if (testmode) { outFileName=nulmark; FIO_setRemoveSrcFile(0); } /* test mode */
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();
free(dynNameSpace);
#ifdef UTIL_HAS_CREATEFILELIST
if (fileNamesTable)
UTIL_freeFileList(fileNamesTable, fileNamesBuf);
else
#endif
free((void*)filenameTable);
return operationResult;
}