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784 lines
34 KiB
784 lines
34 KiB
/*
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LZ4cli - LZ4 Command Line Interface
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Copyright (C) Yann Collet 2011-2020
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GPL v2 License
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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You can contact the author at :
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- LZ4 source repository : https://github.com/lz4/lz4
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- LZ4 public forum : https://groups.google.com/forum/#!forum/lz4c
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*/
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/*
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Note : this is stand-alone program.
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It is not part of LZ4 compression library, it is a user program of the LZ4 library.
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The license of LZ4 library is BSD.
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The license of xxHash library is BSD.
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The license of this compression CLI program is GPLv2.
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*/
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/****************************
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* Includes
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*****************************/
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#include "platform.h" /* Compiler options, IS_CONSOLE */
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#include "util.h" /* UTIL_HAS_CREATEFILELIST, UTIL_createFileList */
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#include <stdio.h> /* fprintf, getchar */
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#include <stdlib.h> /* exit, calloc, free */
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#include <string.h> /* strcmp, strlen */
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#include "bench.h" /* BMK_benchFile, BMK_SetNbIterations, BMK_SetBlocksize, BMK_SetPause */
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#include "lz4io.h" /* LZ4IO_compressFilename, LZ4IO_decompressFilename, LZ4IO_compressMultipleFilenames */
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#include "lz4hc.h" /* LZ4HC_CLEVEL_MAX */
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#include "lz4.h" /* LZ4_VERSION_STRING */
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/*****************************
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* Constants
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******************************/
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#define COMPRESSOR_NAME "LZ4 command line interface"
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#define AUTHOR "Yann Collet"
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#define WELCOME_MESSAGE "*** %s %i-bits v%s, by %s ***\n", COMPRESSOR_NAME, (int)(sizeof(void*)*8), LZ4_versionString(), AUTHOR
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#define LZ4_EXTENSION ".lz4"
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#define LZ4CAT "lz4cat"
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#define UNLZ4 "unlz4"
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#define LZ4_LEGACY "lz4c"
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static int g_lz4c_legacy_commands = 0;
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#define KB *(1U<<10)
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#define MB *(1U<<20)
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#define GB *(1U<<30)
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#define LZ4_BLOCKSIZEID_DEFAULT 7
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/*-************************************
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* Macros
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***************************************/
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#define DISPLAYOUT(...) fprintf(stdout, __VA_ARGS__)
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#define DISPLAY(...) fprintf(stderr, __VA_ARGS__)
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#define DISPLAYLEVEL(l, ...) if (displayLevel>=l) { DISPLAY(__VA_ARGS__); }
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static unsigned displayLevel = 2; /* 0 : no display ; 1: errors only ; 2 : downgradable normal ; 3 : non-downgradable normal; 4 : + information */
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/*-************************************
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* Exceptions
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***************************************/
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#define DEBUG 0
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#define DEBUGOUTPUT(...) if (DEBUG) DISPLAY(__VA_ARGS__);
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#define EXM_THROW(error, ...) \
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{ \
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DEBUGOUTPUT("Error defined at %s, line %i : \n", __FILE__, __LINE__); \
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DISPLAYLEVEL(1, "Error %i : ", error); \
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DISPLAYLEVEL(1, __VA_ARGS__); \
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DISPLAYLEVEL(1, "\n"); \
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exit(error); \
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}
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/*-************************************
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* Version modifiers
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***************************************/
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#define DEFAULT_COMPRESSOR LZ4IO_compressFilename
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#define DEFAULT_DECOMPRESSOR LZ4IO_decompressFilename
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int LZ4IO_compressFilename_Legacy(const char* input_filename, const char* output_filename, int compressionlevel, const LZ4IO_prefs_t* prefs); /* hidden function */
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int LZ4IO_compressMultipleFilenames_Legacy(
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const char** inFileNamesTable, int ifntSize,
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const char* suffix,
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int compressionLevel, const LZ4IO_prefs_t* prefs);
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/*-***************************
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* Functions
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*****************************/
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static int usage(const char* exeName)
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{
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DISPLAY( "Usage : \n");
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DISPLAY( " %s [arg] [input] [output] \n", exeName);
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DISPLAY( "\n");
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DISPLAY( "input : a filename \n");
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DISPLAY( " with no FILE, or when FILE is - or %s, read standard input\n", stdinmark);
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DISPLAY( "Arguments : \n");
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DISPLAY( " -1 : Fast compression (default) \n");
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DISPLAY( " -9 : High compression \n");
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DISPLAY( " -d : decompression (default for %s extension)\n", LZ4_EXTENSION);
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DISPLAY( " -z : force compression \n");
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DISPLAY( " -D FILE: use FILE as dictionary \n");
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DISPLAY( " -f : overwrite output without prompting \n");
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DISPLAY( " -k : preserve source files(s) (default) \n");
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DISPLAY( "--rm : remove source file(s) after successful de/compression \n");
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DISPLAY( " -h/-H : display help/long help and exit \n");
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return 0;
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}
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static int usage_advanced(const char* exeName)
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{
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DISPLAY(WELCOME_MESSAGE);
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usage(exeName);
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DISPLAY( "\n");
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DISPLAY( "Advanced arguments :\n");
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DISPLAY( " -V : display Version number and exit \n");
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DISPLAY( " -v : verbose mode \n");
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DISPLAY( " -q : suppress warnings; specify twice to suppress errors too\n");
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DISPLAY( " -c : force write to standard output, even if it is the console\n");
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DISPLAY( " -t : test compressed file integrity\n");
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DISPLAY( " -m : multiple input files (implies automatic output filenames)\n");
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#ifdef UTIL_HAS_CREATEFILELIST
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DISPLAY( " -r : operate recursively on directories (sets also -m) \n");
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#endif
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DISPLAY( " -l : compress using Legacy format (Linux kernel compression)\n");
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DISPLAY( " -B# : cut file into blocks of size # bytes [32+] \n");
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DISPLAY( " or predefined block size [4-7] (default: 7) \n");
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DISPLAY( " -BI : Block Independence (default) \n");
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DISPLAY( " -BD : Block dependency (improves compression ratio) \n");
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DISPLAY( " -BX : enable block checksum (default:disabled) \n");
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DISPLAY( "--no-frame-crc : disable stream checksum (default:enabled) \n");
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DISPLAY( "--content-size : compressed frame includes original size (default:not present)\n");
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DISPLAY( "--list FILE : lists information about .lz4 files (useful for files compressed with --content-size flag)\n");
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DISPLAY( "--[no-]sparse : sparse mode (default:enabled on file, disabled on stdout)\n");
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DISPLAY( "--favor-decSpeed: compressed files decompress faster, but are less compressed \n");
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DISPLAY( "--fast[=#]: switch to ultra fast compression level (default: %i)\n", 1);
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DISPLAY( "--best : same as -%d\n", LZ4HC_CLEVEL_MAX);
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DISPLAY( "Benchmark arguments : \n");
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DISPLAY( " -b# : benchmark file(s), using # compression level (default : 1) \n");
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DISPLAY( " -e# : test all compression levels from -bX to # (default : 1)\n");
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DISPLAY( " -i# : minimum evaluation time in seconds (default : 3s) \n");
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if (g_lz4c_legacy_commands) {
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DISPLAY( "Legacy arguments : \n");
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DISPLAY( " -c0 : fast compression \n");
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DISPLAY( " -c1 : high compression \n");
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DISPLAY( " -c2,-hc: very high compression \n");
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DISPLAY( " -y : overwrite output without prompting \n");
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}
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return 0;
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}
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static int usage_longhelp(const char* exeName)
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{
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usage_advanced(exeName);
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DISPLAY( "\n");
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DISPLAY( "****************************\n");
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DISPLAY( "***** Advanced comment *****\n");
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DISPLAY( "****************************\n");
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DISPLAY( "\n");
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DISPLAY( "Which values can [output] have ? \n");
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DISPLAY( "---------------------------------\n");
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DISPLAY( "[output] : a filename \n");
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DISPLAY( " '%s', or '-' for standard output (pipe mode)\n", stdoutmark);
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DISPLAY( " '%s' to discard output (test mode) \n", NULL_OUTPUT);
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DISPLAY( "[output] can be left empty. In this case, it receives the following value :\n");
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DISPLAY( " - if stdout is not the console, then [output] = stdout \n");
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DISPLAY( " - if stdout is console : \n");
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DISPLAY( " + for compression, output to filename%s \n", LZ4_EXTENSION);
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DISPLAY( " + for decompression, output to filename without '%s'\n", LZ4_EXTENSION);
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DISPLAY( " > if input filename has no '%s' extension : error \n", LZ4_EXTENSION);
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DISPLAY( "\n");
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DISPLAY( "Compression levels : \n");
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DISPLAY( "---------------------\n");
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DISPLAY( "-0 ... -2 => Fast compression, all identical\n");
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DISPLAY( "-3 ... -%d => High compression; higher number == more compression but slower\n", LZ4HC_CLEVEL_MAX);
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DISPLAY( "\n");
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DISPLAY( "stdin, stdout and the console : \n");
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DISPLAY( "--------------------------------\n");
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DISPLAY( "To protect the console from binary flooding (bad argument mistake)\n");
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DISPLAY( "%s will refuse to read from console, or write to console \n", exeName);
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DISPLAY( "except if '-c' command is specified, to force output to console \n");
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DISPLAY( "\n");
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DISPLAY( "Simple example :\n");
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DISPLAY( "----------------\n");
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DISPLAY( "1 : compress 'filename' fast, using default output name 'filename.lz4'\n");
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DISPLAY( " %s filename\n", exeName);
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DISPLAY( "\n");
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DISPLAY( "Short arguments can be aggregated. For example :\n");
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DISPLAY( "----------------------------------\n");
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DISPLAY( "2 : compress 'filename' in high compression mode, overwrite output if exists\n");
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DISPLAY( " %s -9 -f filename \n", exeName);
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DISPLAY( " is equivalent to :\n");
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DISPLAY( " %s -9f filename \n", exeName);
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DISPLAY( "\n");
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DISPLAY( "%s can be used in 'pure pipe mode'. For example :\n", exeName);
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DISPLAY( "-------------------------------------\n");
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DISPLAY( "3 : compress data stream from 'generator', send result to 'consumer'\n");
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DISPLAY( " generator | %s | consumer \n", exeName);
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if (g_lz4c_legacy_commands) {
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DISPLAY( "\n");
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DISPLAY( "***** Warning ***** \n");
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DISPLAY( "Legacy arguments take precedence. Therefore : \n");
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DISPLAY( "--------------------------------- \n");
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DISPLAY( " %s -hc filename \n", exeName);
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DISPLAY( "means 'compress filename in high compression mode' \n");
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DISPLAY( "It is not equivalent to : \n");
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DISPLAY( " %s -h -c filename \n", exeName);
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DISPLAY( "which displays help text and exits \n");
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}
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return 0;
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}
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static int badusage(const char* exeName)
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{
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DISPLAYLEVEL(1, "Incorrect parameters\n");
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if (displayLevel >= 1) usage(exeName);
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exit(1);
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}
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static void waitEnter(void)
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{
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DISPLAY("Press enter to continue...\n");
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(void)getchar();
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}
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static const char* lastNameFromPath(const char* path)
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{
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const char* name = path;
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if (strrchr(name, '/')) name = strrchr(name, '/') + 1;
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if (strrchr(name, '\\')) name = strrchr(name, '\\') + 1; /* windows */
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return name;
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}
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/*! exeNameMatch() :
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@return : a non-zero value if exeName matches test, excluding the extension
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*/
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static int exeNameMatch(const char* exeName, const char* test)
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{
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return !strncmp(exeName, test, strlen(test)) &&
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(exeName[strlen(test)] == '\0' || exeName[strlen(test)] == '.');
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}
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/*! readU32FromChar() :
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* @return : unsigned integer value read from input in `char` format
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* allows and interprets K, KB, KiB, M, MB and MiB suffix.
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* Will also modify `*stringPtr`, advancing it to position where it stopped reading.
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* Note : function result can overflow if digit string > MAX_UINT */
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static unsigned readU32FromChar(const char** stringPtr)
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{
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unsigned result = 0;
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while ((**stringPtr >='0') && (**stringPtr <='9')) {
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result *= 10;
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result += (unsigned)(**stringPtr - '0');
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(*stringPtr)++ ;
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}
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if ((**stringPtr=='K') || (**stringPtr=='M')) {
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result <<= 10;
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if (**stringPtr=='M') result <<= 10;
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(*stringPtr)++ ;
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if (**stringPtr=='i') (*stringPtr)++;
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if (**stringPtr=='B') (*stringPtr)++;
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}
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return result;
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}
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/** longCommandWArg() :
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* check if *stringPtr is the same as longCommand.
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* If yes, @return 1 and advances *stringPtr to the position which immediately follows longCommand.
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* @return 0 and doesn't modify *stringPtr otherwise.
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*/
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static int longCommandWArg(const char** stringPtr, const char* longCommand)
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{
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size_t const comSize = strlen(longCommand);
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int const result = !strncmp(*stringPtr, longCommand, comSize);
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if (result) *stringPtr += comSize;
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return result;
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}
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typedef enum { om_auto, om_compress, om_decompress, om_test, om_bench, om_list } operationMode_e;
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/** determineOpMode() :
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* auto-determine operation mode, based on input filename extension
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* @return `om_decompress` if input filename has .lz4 extension and `om_compress` otherwise.
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*/
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static operationMode_e determineOpMode(const char* inputFilename)
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{
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size_t const inSize = strlen(inputFilename);
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size_t const extSize = strlen(LZ4_EXTENSION);
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size_t const extStart= (inSize > extSize) ? inSize-extSize : 0;
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if (!strcmp(inputFilename+extStart, LZ4_EXTENSION)) return om_decompress;
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else return om_compress;
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}
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int main(int argc, const char** argv)
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{
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int i,
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cLevel=1,
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cLevelLast=-10000,
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legacy_format=0,
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forceStdout=0,
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forceOverwrite=0,
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main_pause=0,
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multiple_inputs=0,
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all_arguments_are_files=0,
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operationResult=0;
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operationMode_e mode = om_auto;
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const char* input_filename = NULL;
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const char* output_filename= NULL;
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const char* dictionary_filename = NULL;
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char* dynNameSpace = NULL;
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const char** inFileNames = (const char**)calloc((size_t)argc, sizeof(char*));
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unsigned ifnIdx=0;
|
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LZ4IO_prefs_t* const prefs = LZ4IO_defaultPreferences();
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const char nullOutput[] = NULL_OUTPUT;
|
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const char extension[] = LZ4_EXTENSION;
|
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size_t blockSize = LZ4IO_setBlockSizeID(prefs, LZ4_BLOCKSIZEID_DEFAULT);
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const char* const exeName = lastNameFromPath(argv[0]);
|
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char* fileNamesBuf = NULL;
|
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#ifdef UTIL_HAS_CREATEFILELIST
|
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unsigned fileNamesNb, recursive=0;
|
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#endif
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|
|
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/* Init */
|
|
if (inFileNames==NULL) {
|
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DISPLAY("Allocation error : not enough memory \n");
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return 1;
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}
|
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inFileNames[0] = stdinmark;
|
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LZ4IO_setOverwrite(prefs, 0);
|
|
|
|
/* predefined behaviors, based on binary/link name */
|
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if (exeNameMatch(exeName, LZ4CAT)) {
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mode = om_decompress;
|
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LZ4IO_setOverwrite(prefs, 1);
|
|
LZ4IO_setPassThrough(prefs, 1);
|
|
LZ4IO_setRemoveSrcFile(prefs, 0);
|
|
forceStdout=1;
|
|
output_filename=stdoutmark;
|
|
displayLevel=1;
|
|
multiple_inputs=1;
|
|
}
|
|
if (exeNameMatch(exeName, UNLZ4)) { mode = om_decompress; }
|
|
if (exeNameMatch(exeName, LZ4_LEGACY)) { g_lz4c_legacy_commands=1; }
|
|
|
|
/* command switches */
|
|
for(i=1; i<argc; i++) {
|
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const char* argument = argv[i];
|
|
|
|
if(!argument) continue; /* Protection if argument empty */
|
|
|
|
/* Short commands (note : aggregated short commands are allowed) */
|
|
if (!all_arguments_are_files && argument[0]=='-') {
|
|
/* '-' means stdin/stdout */
|
|
if (argument[1]==0) {
|
|
if (!input_filename) input_filename=stdinmark;
|
|
else output_filename=stdoutmark;
|
|
continue;
|
|
}
|
|
|
|
/* long commands (--long-word) */
|
|
if (argument[1]=='-') {
|
|
if (!strcmp(argument, "--")) { all_arguments_are_files = 1; continue; }
|
|
if (!strcmp(argument, "--compress")) { mode = om_compress; continue; }
|
|
if ( (!strcmp(argument, "--decompress"))
|
|
|| (!strcmp(argument, "--uncompress"))) {
|
|
if (mode != om_bench) mode = om_decompress;
|
|
BMK_setDecodeOnlyMode(1);
|
|
continue;
|
|
}
|
|
if (!strcmp(argument, "--multiple")) { multiple_inputs = 1; continue; }
|
|
if (!strcmp(argument, "--test")) { mode = om_test; continue; }
|
|
if (!strcmp(argument, "--force")) { LZ4IO_setOverwrite(prefs, 1); continue; }
|
|
if (!strcmp(argument, "--no-force")) { LZ4IO_setOverwrite(prefs, 0); continue; }
|
|
if ((!strcmp(argument, "--stdout"))
|
|
|| (!strcmp(argument, "--to-stdout"))) { forceStdout=1; output_filename=stdoutmark; continue; }
|
|
if (!strcmp(argument, "--frame-crc")) { LZ4IO_setStreamChecksumMode(prefs, 1); BMK_skipChecksums(0); continue; }
|
|
if (!strcmp(argument, "--no-frame-crc")) { LZ4IO_setStreamChecksumMode(prefs, 0); BMK_skipChecksums(1); continue; }
|
|
if (!strcmp(argument, "--no-crc")) { LZ4IO_setStreamChecksumMode(prefs, 0); LZ4IO_setBlockChecksumMode(prefs, 0); BMK_skipChecksums(1); continue; }
|
|
if (!strcmp(argument, "--content-size")) { LZ4IO_setContentSize(prefs, 1); continue; }
|
|
if (!strcmp(argument, "--no-content-size")) { LZ4IO_setContentSize(prefs, 0); continue; }
|
|
if (!strcmp(argument, "--list")) { mode = om_list; continue; }
|
|
if (!strcmp(argument, "--sparse")) { LZ4IO_setSparseFile(prefs, 2); continue; }
|
|
if (!strcmp(argument, "--no-sparse")) { LZ4IO_setSparseFile(prefs, 0); continue; }
|
|
if (!strcmp(argument, "--favor-decSpeed")) { LZ4IO_favorDecSpeed(prefs, 1); continue; }
|
|
if (!strcmp(argument, "--verbose")) { displayLevel++; continue; }
|
|
if (!strcmp(argument, "--quiet")) { if (displayLevel) displayLevel--; continue; }
|
|
if (!strcmp(argument, "--version")) { DISPLAYOUT(WELCOME_MESSAGE); goto _cleanup; }
|
|
if (!strcmp(argument, "--help")) { usage_advanced(exeName); goto _cleanup; }
|
|
if (!strcmp(argument, "--keep")) { LZ4IO_setRemoveSrcFile(prefs, 0); continue; } /* keep source file (default) */
|
|
if (!strcmp(argument, "--rm")) { LZ4IO_setRemoveSrcFile(prefs, 1); continue; }
|
|
if (longCommandWArg(&argument, "--fast")) {
|
|
/* Parse optional acceleration factor */
|
|
if (*argument == '=') {
|
|
U32 fastLevel;
|
|
++argument;
|
|
fastLevel = readU32FromChar(&argument);
|
|
if (fastLevel) {
|
|
cLevel = -(int)fastLevel;
|
|
} else {
|
|
badusage(exeName);
|
|
}
|
|
} else if (*argument != 0) {
|
|
/* Invalid character following --fast */
|
|
badusage(exeName);
|
|
} else {
|
|
cLevel = -1; /* default for --fast */
|
|
}
|
|
continue;
|
|
}
|
|
|
|
/* For gzip(1) compatibility */
|
|
if (!strcmp(argument, "--best")) { cLevel=LZ4HC_CLEVEL_MAX; continue; }
|
|
}
|
|
|
|
while (argument[1]!=0) {
|
|
argument ++;
|
|
|
|
if (g_lz4c_legacy_commands) {
|
|
/* Legacy commands (-c0, -c1, -hc, -y) */
|
|
if (!strcmp(argument, "c0")) { cLevel=0; argument++; continue; } /* -c0 (fast compression) */
|
|
if (!strcmp(argument, "c1")) { cLevel=9; argument++; continue; } /* -c1 (high compression) */
|
|
if (!strcmp(argument, "c2")) { cLevel=12; argument++; continue; } /* -c2 (very high compression) */
|
|
if (!strcmp(argument, "hc")) { cLevel=12; argument++; continue; } /* -hc (very high compression) */
|
|
if (!strcmp(argument, "y")) { LZ4IO_setOverwrite(prefs, 1); continue; } /* -y (answer 'yes' to overwrite permission) */
|
|
}
|
|
|
|
if ((*argument>='0') && (*argument<='9')) {
|
|
cLevel = (int)readU32FromChar(&argument);
|
|
argument--;
|
|
continue;
|
|
}
|
|
|
|
|
|
switch(argument[0])
|
|
{
|
|
/* Display help */
|
|
case 'V': DISPLAYOUT(WELCOME_MESSAGE); goto _cleanup; /* Version */
|
|
case 'h': usage_advanced(exeName); goto _cleanup;
|
|
case 'H': usage_longhelp(exeName); goto _cleanup;
|
|
|
|
case 'e':
|
|
argument++;
|
|
cLevelLast = (int)readU32FromChar(&argument);
|
|
argument--;
|
|
break;
|
|
|
|
/* Compression (default) */
|
|
case 'z': mode = om_compress; break;
|
|
|
|
case 'D':
|
|
if (argument[1] == '\0') {
|
|
/* path is next arg */
|
|
if (i + 1 == argc) {
|
|
/* there is no next arg */
|
|
badusage(exeName);
|
|
}
|
|
dictionary_filename = argv[++i];
|
|
} else {
|
|
/* path follows immediately */
|
|
dictionary_filename = argument + 1;
|
|
}
|
|
/* skip to end of argument so that we jump to parsing next argument */
|
|
argument += strlen(argument) - 1;
|
|
break;
|
|
|
|
/* Use Legacy format (ex : Linux kernel compression) */
|
|
case 'l': legacy_format = 1; blockSize = 8 MB; break;
|
|
|
|
/* Decoding */
|
|
case 'd':
|
|
if (mode != om_bench) mode = om_decompress;
|
|
BMK_setDecodeOnlyMode(1);
|
|
break;
|
|
|
|
/* Force stdout, even if stdout==console */
|
|
case 'c':
|
|
forceStdout=1;
|
|
output_filename=stdoutmark;
|
|
LZ4IO_setPassThrough(prefs, 1);
|
|
break;
|
|
|
|
/* Test integrity */
|
|
case 't': mode = om_test; break;
|
|
|
|
/* Overwrite */
|
|
case 'f': forceOverwrite=1; LZ4IO_setOverwrite(prefs, 1); break;
|
|
|
|
/* Verbose mode */
|
|
case 'v': displayLevel++; break;
|
|
|
|
/* Quiet mode */
|
|
case 'q': if (displayLevel) displayLevel--; break;
|
|
|
|
/* keep source file (default anyway, so useless) (for xz/lzma compatibility) */
|
|
case 'k': LZ4IO_setRemoveSrcFile(prefs, 0); break;
|
|
|
|
/* Modify Block Properties */
|
|
case 'B':
|
|
while (argument[1]!=0) {
|
|
int exitBlockProperties=0;
|
|
switch(argument[1])
|
|
{
|
|
case 'D': LZ4IO_setBlockMode(prefs, LZ4IO_blockLinked); argument++; break;
|
|
case 'I': LZ4IO_setBlockMode(prefs, LZ4IO_blockIndependent); argument++; break;
|
|
case 'X': LZ4IO_setBlockChecksumMode(prefs, 1); argument ++; break; /* disabled by default */
|
|
default :
|
|
if (argument[1] < '0' || argument[1] > '9') {
|
|
exitBlockProperties=1;
|
|
break;
|
|
} else {
|
|
unsigned B;
|
|
argument++;
|
|
B = readU32FromChar(&argument);
|
|
argument--;
|
|
if (B < 4) badusage(exeName);
|
|
if (B <= 7) {
|
|
blockSize = LZ4IO_setBlockSizeID(prefs, B);
|
|
BMK_setBlockSize(blockSize);
|
|
DISPLAYLEVEL(2, "using blocks of size %u KB \n", (U32)(blockSize>>10));
|
|
} else {
|
|
if (B < 32) badusage(exeName);
|
|
blockSize = LZ4IO_setBlockSize(prefs, B);
|
|
BMK_setBlockSize(blockSize);
|
|
if (blockSize >= 1024) {
|
|
DISPLAYLEVEL(2, "using blocks of size %u KB \n", (U32)(blockSize>>10));
|
|
} else {
|
|
DISPLAYLEVEL(2, "using blocks of size %u bytes \n", (U32)(blockSize));
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
if (exitBlockProperties) break;
|
|
}
|
|
break;
|
|
|
|
/* Benchmark */
|
|
case 'b': mode = om_bench; multiple_inputs=1;
|
|
break;
|
|
|
|
/* hidden command : benchmark files, but do not fuse result */
|
|
case 'S': BMK_setBenchSeparately(1);
|
|
break;
|
|
|
|
#ifdef UTIL_HAS_CREATEFILELIST
|
|
/* recursive */
|
|
case 'r': recursive=1;
|
|
#endif
|
|
/* fall-through */
|
|
/* Treat non-option args as input files. See https://code.google.com/p/lz4/issues/detail?id=151 */
|
|
case 'm': multiple_inputs=1;
|
|
break;
|
|
|
|
/* Modify Nb Seconds (benchmark only) */
|
|
case 'i':
|
|
{ unsigned iters;
|
|
argument++;
|
|
iters = readU32FromChar(&argument);
|
|
argument--;
|
|
BMK_setNotificationLevel(displayLevel);
|
|
BMK_setNbSeconds(iters); /* notification if displayLevel >= 3 */
|
|
}
|
|
break;
|
|
|
|
/* Pause at the end (hidden option) */
|
|
case 'p': main_pause=1; break;
|
|
|
|
/* Unrecognised command */
|
|
default : badusage(exeName);
|
|
}
|
|
}
|
|
continue;
|
|
}
|
|
|
|
/* Store in *inFileNames[] if -m is used. */
|
|
if (multiple_inputs) { inFileNames[ifnIdx++] = argument; continue; }
|
|
|
|
/* original cli logic : lz4 input output */
|
|
/* First non-option arg is input_filename. */
|
|
if (!input_filename) { input_filename = argument; continue; }
|
|
|
|
/* Second non-option arg is output_filename */
|
|
if (!output_filename) {
|
|
output_filename = argument;
|
|
if (!strcmp (output_filename, nullOutput)) output_filename = nulmark;
|
|
continue;
|
|
}
|
|
|
|
/* 3rd+ non-option arg should not exist */
|
|
DISPLAYLEVEL(1, "%s : %s won't be used ! Do you want multiple input files (-m) ? \n",
|
|
forceOverwrite ? "Warning" : "Error",
|
|
argument);
|
|
if (!forceOverwrite) exit(1);
|
|
}
|
|
|
|
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 _FILE_OFFSET_BITS
|
|
DISPLAYLEVEL(4, "_FILE_OFFSET_BITS defined: %ldL\n", (long) _FILE_OFFSET_BITS);
|
|
#endif
|
|
if ((mode == om_compress) || (mode == om_bench))
|
|
DISPLAYLEVEL(4, "Blocks size : %u KB\n", (U32)(blockSize>>10));
|
|
|
|
if (multiple_inputs) {
|
|
input_filename = inFileNames[0];
|
|
#ifdef UTIL_HAS_CREATEFILELIST
|
|
if (recursive) { /* at this stage, filenameTable is a list of paths, which can contain both files and directories */
|
|
const char** extendedFileList = UTIL_createFileList(inFileNames, ifnIdx, &fileNamesBuf, &fileNamesNb);
|
|
if (extendedFileList) {
|
|
unsigned u;
|
|
for (u=0; u<fileNamesNb; u++) DISPLAYLEVEL(4, "%u %s\n", u, extendedFileList[u]);
|
|
free((void*)inFileNames);
|
|
inFileNames = extendedFileList;
|
|
ifnIdx = fileNamesNb;
|
|
} }
|
|
#endif
|
|
}
|
|
|
|
if (dictionary_filename) {
|
|
if (!strcmp(dictionary_filename, stdinmark) && IS_CONSOLE(stdin)) {
|
|
DISPLAYLEVEL(1, "refusing to read from a console\n");
|
|
exit(1);
|
|
}
|
|
LZ4IO_setDictionaryFilename(prefs, dictionary_filename);
|
|
}
|
|
|
|
/* benchmark and test modes */
|
|
if (mode == om_bench) {
|
|
BMK_setNotificationLevel(displayLevel);
|
|
operationResult = BMK_benchFiles(inFileNames, ifnIdx, cLevel, cLevelLast, dictionary_filename);
|
|
goto _cleanup;
|
|
}
|
|
|
|
if (mode == om_test) {
|
|
LZ4IO_setTestMode(prefs, 1);
|
|
output_filename = nulmark;
|
|
mode = om_decompress; /* defer to decompress */
|
|
}
|
|
|
|
/* No input provided => use stdin */
|
|
if (!input_filename) input_filename = stdinmark;
|
|
|
|
/* Refuse to use the console as input */
|
|
if (!strcmp(input_filename, stdinmark) && IS_CONSOLE(stdin) ) {
|
|
DISPLAYLEVEL(1, "refusing to read from a console\n");
|
|
exit(1);
|
|
}
|
|
|
|
if (!strcmp(input_filename, stdinmark)) {
|
|
/* if input==stdin and no output defined, stdout becomes default output */
|
|
if (!output_filename) output_filename = stdoutmark;
|
|
}
|
|
|
|
/* No output filename ==> try to select one automatically (when possible) */
|
|
while ((!output_filename) && (multiple_inputs==0)) {
|
|
if (!IS_CONSOLE(stdout) && mode != om_list) {
|
|
/* Default to stdout whenever stdout is not the console.
|
|
* Note : this policy may change in the future, therefore don't rely on it !
|
|
* To ensure `stdout` is explicitly selected, use `-c` command flag.
|
|
* Conversely, to ensure output will not become `stdout`, use `-m` command flag */
|
|
DISPLAYLEVEL(1, "Warning : using stdout as default output. Do not rely on this behavior: use explicit `-c` instead ! \n");
|
|
output_filename = stdoutmark;
|
|
break;
|
|
}
|
|
if (mode == om_auto) { /* auto-determine compression or decompression, based on file extension */
|
|
mode = determineOpMode(input_filename);
|
|
}
|
|
if (mode == om_compress) { /* compression to file */
|
|
size_t const l = strlen(input_filename);
|
|
dynNameSpace = (char*)calloc(1,l+5);
|
|
if (dynNameSpace==NULL) { perror(exeName); exit(1); }
|
|
strcpy(dynNameSpace, input_filename);
|
|
strcat(dynNameSpace, LZ4_EXTENSION);
|
|
output_filename = dynNameSpace;
|
|
DISPLAYLEVEL(2, "Compressed filename will be : %s \n", output_filename);
|
|
break;
|
|
}
|
|
if (mode == om_decompress) {/* decompress to file (automatic output name only works if input filename has correct format extension) */
|
|
size_t outl;
|
|
size_t const inl = strlen(input_filename);
|
|
dynNameSpace = (char*)calloc(1,inl+1);
|
|
if (dynNameSpace==NULL) { perror(exeName); exit(1); }
|
|
strcpy(dynNameSpace, input_filename);
|
|
outl = inl;
|
|
if (inl>4)
|
|
while ((outl >= inl-4) && (input_filename[outl] == extension[outl-inl+4])) dynNameSpace[outl--]=0;
|
|
if (outl != inl-5) { DISPLAYLEVEL(1, "Cannot determine an output filename \n"); badusage(exeName); }
|
|
output_filename = dynNameSpace;
|
|
DISPLAYLEVEL(2, "Decoding file %s \n", output_filename);
|
|
}
|
|
break;
|
|
}
|
|
|
|
if (mode == om_list) {
|
|
if (!multiple_inputs) inFileNames[ifnIdx++] = input_filename;
|
|
} else {
|
|
if (!multiple_inputs) assert(output_filename != NULL);
|
|
}
|
|
/* when multiple_inputs==1, output_filename may simply be useless,
|
|
* however, output_filename must be !NULL for next strcmp() tests */
|
|
if (!output_filename) output_filename = "*\\dummy^!//";
|
|
|
|
/* Check if output is defined as console; trigger an error in this case */
|
|
if ( !strcmp(output_filename,stdoutmark)
|
|
&& mode != om_list
|
|
&& IS_CONSOLE(stdout)
|
|
&& !forceStdout) {
|
|
DISPLAYLEVEL(1, "refusing to write to console without -c \n");
|
|
exit(1);
|
|
}
|
|
/* Downgrade notification level in stdout and multiple file mode */
|
|
if (!strcmp(output_filename,stdoutmark) && (displayLevel==2)) displayLevel=1;
|
|
if ((multiple_inputs) && (displayLevel==2)) displayLevel=1;
|
|
|
|
/* Auto-determine compression or decompression, based on file extension */
|
|
if (mode == om_auto) {
|
|
mode = determineOpMode(input_filename);
|
|
}
|
|
|
|
/* IO Stream/File */
|
|
LZ4IO_setNotificationLevel((int)displayLevel);
|
|
if (ifnIdx == 0) multiple_inputs = 0;
|
|
if (mode == om_decompress) {
|
|
if (multiple_inputs) {
|
|
const char* dec_extension = LZ4_EXTENSION;
|
|
if (!strcmp(output_filename, stdoutmark)) dec_extension = stdoutmark;
|
|
if (!strcmp(output_filename, nulmark)) dec_extension = nulmark;
|
|
assert(ifnIdx < INT_MAX);
|
|
operationResult = LZ4IO_decompressMultipleFilenames(inFileNames, (int)ifnIdx, dec_extension, prefs);
|
|
} else {
|
|
operationResult = DEFAULT_DECOMPRESSOR(input_filename, output_filename, prefs);
|
|
}
|
|
} else if (mode == om_list){
|
|
operationResult = LZ4IO_displayCompressedFilesInfo(inFileNames, ifnIdx);
|
|
} else { /* compression is default action */
|
|
if (legacy_format) {
|
|
DISPLAYLEVEL(3, "! Generating LZ4 Legacy format (deprecated) ! \n");
|
|
if(multiple_inputs){
|
|
const char* const leg_extension = !strcmp(output_filename,stdoutmark) ? stdoutmark : LZ4_EXTENSION;
|
|
LZ4IO_compressMultipleFilenames_Legacy(inFileNames, (int)ifnIdx, leg_extension, cLevel, prefs);
|
|
} else {
|
|
LZ4IO_compressFilename_Legacy(input_filename, output_filename, cLevel, prefs);
|
|
}
|
|
} else {
|
|
if (multiple_inputs) {
|
|
const char* const comp_extension = !strcmp(output_filename,stdoutmark) ? stdoutmark : LZ4_EXTENSION;
|
|
assert(ifnIdx <= INT_MAX);
|
|
operationResult = LZ4IO_compressMultipleFilenames(inFileNames, (int)ifnIdx, comp_extension, cLevel, prefs);
|
|
} else {
|
|
operationResult = DEFAULT_COMPRESSOR(input_filename, output_filename, cLevel, prefs);
|
|
} } }
|
|
|
|
_cleanup:
|
|
if (main_pause) waitEnter();
|
|
free(dynNameSpace);
|
|
free(fileNamesBuf);
|
|
LZ4IO_freePreferences(prefs);
|
|
free((void*)inFileNames);
|
|
return operationResult;
|
|
}
|
|
|