From 634e93bbccb1f17716f009d46c5042d24b62192d Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sat, 7 Nov 2015 15:47:48 +0100 Subject: Merging upstream version 1.4. Signed-off-by: Daniel Baumann --- ChangeLog | 15 ++-- INSTALL | 5 +- LzFind.c | 2 +- LzmaDec.c | 2 +- LzmaEnc.c | 2 +- Makefile.in | 8 +-- NEWS | 5 +- carg_parser.c | 2 +- carg_parser.h | 2 +- clzip.h | 223 ---------------------------------------------------------- configure | 38 +++++++--- doc/pdlzip.1 | 4 +- lzip.h | 223 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ main.c | 6 +- 14 files changed, 277 insertions(+), 260 deletions(-) delete mode 100644 clzip.h create mode 100644 lzip.h diff --git a/ChangeLog b/ChangeLog index 7d397bb..c2be48d 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,13 +1,6 @@ -2013-04-15 Antonio Diaz Diaz +2013-05-27 Antonio Diaz Diaz - * Version 1.4-rc2 released. - * Fixed return value of '-d' and '-t' in case of data error. - * main.c: Changed info shown at verbosity levels 2 and 3. - * Ignore option '-n, --threads' for compatibility with plzip. - -2013-02-18 Antonio Diaz Diaz - - * Version 1.4-rc1 released. + * Version 1.4 released. * main.c: Added new option '-f, --force'. * main.c: Added new option '-F, --recompress'. * main.c: Added new option '-k, --keep'. @@ -15,6 +8,10 @@ * main.c: Accept more than one file in command line. * Decompression time has been reduced by 5%. * main.c: '--test' no more needs '/dev/null'. + * Fixed return value of '-d' and '-t' in case of data error. + * main.c: Changed info shown at verbosity levels 2 and 3. + * Ignore option '-n, --threads' for compatibility with plzip. + * configure: Options now accept a separate argument. * configure: 'datadir' renamed to 'datarootdir'. * Makefile.in: Added new target 'install-as-lzip'. * Makefile.in: Added new target 'install-bin'. diff --git a/INSTALL b/INSTALL index 3c4638a..6f5affc 100644 --- a/INSTALL +++ b/INSTALL @@ -36,8 +36,9 @@ the main archive. typing 'make install-bin', 'make install-info' or 'make install-man' respectively. -5a. Type 'make install-as-lzip' to install the program and any data - files and documentation, and link the program to the name 'lzip'. + Instead of 'make install', you can type 'make install-as-lzip' to + install the program and any data files and documentation, and link + the program to the name 'lzip'. Another way diff --git a/LzFind.c b/LzFind.c index 06d1c2c..8e660f3 100644 --- a/LzFind.c +++ b/LzFind.c @@ -10,7 +10,7 @@ #include #include -#include "clzip.h" +#include "lzip.h" #include "LzFind.h" #define kHash2Size (1 << 10) diff --git a/LzmaDec.c b/LzmaDec.c index 5ea279f..36ecb32 100644 --- a/LzmaDec.c +++ b/LzmaDec.c @@ -11,7 +11,7 @@ #include #include -#include "clzip.h" +#include "lzip.h" #include "LzmaDec.h" diff --git a/LzmaEnc.c b/LzmaEnc.c index e5125d9..fb5df7a 100644 --- a/LzmaEnc.c +++ b/LzmaEnc.c @@ -11,7 +11,7 @@ /* #define SHOW_STAT */ /* #define SHOW_STAT2 */ -#include "clzip.h" +#include "lzip.h" #include "LzmaEnc.h" #include "LzFind.h" diff --git a/Makefile.in b/Makefile.in index 03ceaee..bea7569 100644 --- a/Makefile.in +++ b/Makefile.in @@ -29,10 +29,10 @@ main.o : main.c $(objs) : Makefile carg_parser.o : carg_parser.h -LzmaDec.o : clzip.h LzmaDec.h -LzFind.o : clzip.h LzFind.h -LzmaEnc.o : clzip.h LzFind.h LzmaEnc.h -main.o : carg_parser.h clzip.h LzmaDec.h LzmaEnc.h +LzmaDec.o : lzip.h LzmaDec.h +LzFind.o : lzip.h LzFind.h +LzmaEnc.o : lzip.h LzFind.h LzmaEnc.h +main.o : carg_parser.h lzip.h LzmaDec.h LzmaEnc.h doc : man diff --git a/NEWS b/NEWS index e7a5fd2..98ce57f 100644 --- a/NEWS +++ b/NEWS @@ -7,8 +7,7 @@ Pdlzip now accepts more than one file in the command line. Decompression time has been reduced by 5%. -The dependence of "-t" on the existence of "/dev/null" has been -removed. +The dependence of "-t" on the existence of "/dev/null" has been removed. The value returned by "-d" and "-t" in case of data error has been fixed. @@ -17,6 +16,8 @@ Information shown at verbosity levels 2 and 3 has been changed. Option "-n, --threads" is now accepted and ignored for compatibility with plzip. +"configure" now accepts options with a separate argument. + Configure option "--datadir" has been renamed to "--datarootdir" to follow GNU Standards. diff --git a/carg_parser.c b/carg_parser.c index 30cabb3..7ea8a2f 100644 --- a/carg_parser.c +++ b/carg_parser.c @@ -1,5 +1,5 @@ /* Pdlzip - Data compressor based on the LZMA algorithm - Copyright (C) 2010, 2011, 2012 Antonio Diaz Diaz. + Copyright (C) 2010, 2011, 2012, 2013 Antonio Diaz Diaz. This program is free software: you have unlimited permission to copy, distribute and modify it. diff --git a/carg_parser.h b/carg_parser.h index 020c57c..a750bd4 100644 --- a/carg_parser.h +++ b/carg_parser.h @@ -1,5 +1,5 @@ /* Pdlzip - Data compressor based on the LZMA algorithm - Copyright (C) 2010, 2011, 2012 Antonio Diaz Diaz. + Copyright (C) 2010, 2011, 2012, 2013 Antonio Diaz Diaz. This program is free software: you have unlimited permission to copy, distribute and modify it. diff --git a/clzip.h b/clzip.h deleted file mode 100644 index 0ec2756..0000000 --- a/clzip.h +++ /dev/null @@ -1,223 +0,0 @@ -/* Pdlzip - Data compressor based on the LZMA algorithm - Copyright (C) 2010, 2011, 2012, 2013 Antonio Diaz Diaz. - - This program is free software: you have unlimited permission - to copy, distribute and modify it. - - 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. -*/ - -#ifndef __cplusplus -enum Bool { false = 0, true = 1 }; -typedef enum Bool bool; -#endif - -#ifndef max - #define max(x,y) ((x) >= (y) ? (x) : (y)) -#endif -#ifndef min - #define min(x,y) ((x) <= (y) ? (x) : (y)) -#endif - -typedef int State; - -enum { - min_dictionary_bits = 12, - min_dictionary_size = 1 << min_dictionary_bits, - max_dictionary_bits = 29, - max_dictionary_size = 1 << max_dictionary_bits, - literal_context_bits = 3, - pos_state_bits = 2, - - len_low_bits = 3, - len_mid_bits = 3, - len_high_bits = 8, - len_low_symbols = 1 << len_low_bits, - len_mid_symbols = 1 << len_mid_bits, - len_high_symbols = 1 << len_high_bits, - max_len_symbols = len_low_symbols + len_mid_symbols + len_high_symbols, - - min_match_len = 2, /* must be 2 */ - max_match_len = min_match_len + max_len_symbols - 1, /* 273 */ - min_match_len_limit = 5 }; - - -struct Pretty_print - { - const char * name; - const char * stdin_name; - int longest_name; - int verbosity; - bool first_post; - }; - -void Pp_init( struct Pretty_print * const pp, const char * const filenames[], - const int num_filenames, const int v ); - -static inline void Pp_set_name( struct Pretty_print * const pp, - const char * const filename ) - { - if( filename && filename[0] && strcmp( filename, "-" ) != 0 ) - pp->name = filename; - else pp->name = pp->stdin_name; - pp->first_post = true; - } - -static inline void Pp_reset( struct Pretty_print * const pp ) - { if( pp->name && pp->name[0] ) pp->first_post = true; } -void Pp_show_msg( struct Pretty_print * const pp, const char * const msg ); - - -typedef uint32_t CRC32[256]; /* Table of CRCs of all 8-bit messages. */ - -extern CRC32 crc32; - -static inline void CRC32_init( void ) - { - unsigned n; - for( n = 0; n < 256; ++n ) - { - unsigned c = n; - int k; - for( k = 0; k < 8; ++k ) - { if( c & 1 ) c = 0xEDB88320U ^ ( c >> 1 ); else c >>= 1; } - crc32[n] = c; - } - } - -static inline void CRC32_update_byte( uint32_t * const crc, const uint8_t byte ) - { *crc = crc32[(*crc^byte)&0xFF] ^ ( *crc >> 8 ); } - -static inline void CRC32_update_buf( uint32_t * const crc, - const uint8_t * const buffer, const int size ) - { - int i; - for( i = 0; i < size; ++i ) - *crc = crc32[(*crc^buffer[i])&0xFF] ^ ( *crc >> 8 ); - } - - -static inline int real_bits( unsigned value ) - { - int bits = 0; - while( value > 0 ) { value >>= 1; ++bits; } - return bits; - } - - -static const uint8_t magic_string[4] = { 0x4C, 0x5A, 0x49, 0x50 }; /* "LZIP" */ - -typedef uint8_t File_header[6]; /* 0-3 magic bytes */ - /* 4 version */ - /* 5 coded_dict_size */ -enum { Fh_size = 6 }; - -static inline void Fh_set_magic( File_header data ) - { memcpy( data, magic_string, 4 ); data[4] = 1; } - -static inline bool Fh_verify_magic( const File_header data ) - { return ( memcmp( data, magic_string, 4 ) == 0 ); } - -static inline uint8_t Fh_version( const File_header data ) - { return data[4]; } - -static inline bool Fh_verify_version( const File_header data ) - { return ( data[4] <= 1 ); } - -static inline unsigned Fh_get_dictionary_size( const File_header data ) - { - unsigned sz = ( 1 << ( data[5] & 0x1F ) ); - if( sz > min_dictionary_size ) - sz -= ( sz / 16 ) * ( ( data[5] >> 5 ) & 7 ); - return sz; - } - -static inline bool Fh_set_dictionary_size( File_header data, const int sz ) - { - if( sz >= min_dictionary_size && sz <= max_dictionary_size ) - { - data[5] = real_bits( sz - 1 ); - if( sz > min_dictionary_size ) - { - const int base_size = 1 << data[5]; - const int wedge = base_size / 16; - int i; - for( i = 7; i >= 1; --i ) - if( base_size - ( i * wedge ) >= sz ) - { data[5] |= ( i << 5 ); break; } - } - return true; - } - return false; - } - - -typedef uint8_t File_trailer[20]; - /* 0-3 CRC32 of the uncompressed data */ - /* 4-11 size of the uncompressed data */ - /* 12-19 member size including header and trailer */ - -enum { Ft_size = 20 }; - -static inline int Ft_versioned_size( const int version ) - { return ( ( version >= 1 ) ? 20 : 12 ); } - -static inline unsigned Ft_get_data_crc( const File_trailer data ) - { - unsigned tmp = 0; - int i; - for( i = 3; i >= 0; --i ) { tmp <<= 8; tmp += data[i]; } - return tmp; - } - -static inline void Ft_set_data_crc( File_trailer data, unsigned crc ) - { - int i; - for( i = 0; i <= 3; ++i ) { data[i] = (uint8_t)crc; crc >>= 8; } - } - -static inline unsigned long long Ft_get_data_size( const File_trailer data ) - { - unsigned long long tmp = 0; - int i; - for( i = 11; i >= 4; --i ) { tmp <<= 8; tmp += data[i]; } - return tmp; - } - -static inline void Ft_set_data_size( File_trailer data, unsigned long long sz ) - { - int i; - for( i = 4; i <= 11; ++i ) { data[i] = (uint8_t)sz; sz >>= 8; } - } - -static inline unsigned long long Ft_get_member_size( const File_trailer data ) - { - unsigned long long tmp = 0; - int i; - for( i = 19; i >= 12; --i ) { tmp <<= 8; tmp += data[i]; } - return tmp; - } - -static inline void Ft_set_member_size( File_trailer data, unsigned long long sz ) - { - int i; - for( i = 12; i <= 19; ++i ) { data[i] = (uint8_t)sz; sz >>= 8; } - } - - -/* defined in LzmaDec.c */ -int readblock( const int fd, uint8_t * const buf, const int size ); -int writeblock( const int fd, const uint8_t * const buf, const int size ); - -/* defined in main.c */ -extern int verbosity; - -void show_error( const char * const msg, const int errcode, const bool help ); -void internal_error( const char * const msg ); - -#define SZ_OK 0 - -#define SZ_ERROR_READ 8 -#define SZ_ERROR_WRITE 9 diff --git a/configure b/configure index d22deae..13864f0 100755 --- a/configure +++ b/configure @@ -5,10 +5,8 @@ # This configure script is free software: you have unlimited permission # to copy, distribute and modify it. -args= -no_create= pkgname=pdlzip -pkgversion=1.4-rc2 +pkgversion=1.4 progname=pdlzip srctrigger=doc/pdlzip.1 @@ -28,18 +26,19 @@ CFLAGS='-Wall -W -O2' LDFLAGS= # checking whether we are using GNU C. -if [ ! -x /bin/gcc ] && - [ ! -x /usr/bin/gcc ] && - [ ! -x /usr/local/bin/gcc ] ; then +${CC} --version > /dev/null 2>&1 +if [ $? != 0 ] ; then CC=cc CFLAGS='-W -O2' fi # Loop over all args -while [ -n "$1" ] ; do +args= +no_create= +while [ $# != 0 ] ; do # Get the first arg, and shuffle - option=$1 + option=$1 ; arg2=no shift # Add the argument quoted to args @@ -74,6 +73,14 @@ while [ -n "$1" ] ; do --version | -V) echo "Configure script for ${pkgname} version ${pkgversion}" exit 0 ;; + --srcdir) srcdir=$1 ; arg2=yes ;; + --prefix) prefix=$1 ; arg2=yes ;; + --exec-prefix) exec_prefix=$1 ; arg2=yes ;; + --bindir) bindir=$1 ; arg2=yes ;; + --datarootdir) datarootdir=$1 ; arg2=yes ;; + --infodir) infodir=$1 ; arg2=yes ;; + --mandir) mandir=$1 ; arg2=yes ;; + --srcdir=*) srcdir=${optarg} ;; --prefix=*) prefix=${optarg} ;; --exec-prefix=*) exec_prefix=${optarg} ;; @@ -88,11 +95,22 @@ while [ -n "$1" ] ; do CFLAGS=*) CFLAGS=${optarg} ;; LDFLAGS=*) LDFLAGS=${optarg} ;; - --* | *=* | *-*-*) ;; + --*) + echo "configure: WARNING: unrecognized option: '${option}'" 1>&2 ;; + *=* | *-*-*) ;; *) - echo "configure: Unrecognized option: \"${option}\"; use --help for usage." 1>&2 + echo "configure: unrecognized option: '${option}'" 1>&2 + echo "Try 'configure --help' for more information." exit 1 ;; esac + + # Check if the option took a separate argument + if [ "${arg2}" = yes ] ; then + if [ $# != 0 ] ; then args="${args} \"$1\"" ; shift + else echo "configure: Missing argument to \"${option}\"" 1>&2 + exit 1 + fi + fi done # Find the source files, if location was not specified. diff --git a/doc/pdlzip.1 b/doc/pdlzip.1 index cd9257e..ec12d69 100644 --- a/doc/pdlzip.1 +++ b/doc/pdlzip.1 @@ -1,5 +1,5 @@ .\" DO NOT MODIFY THIS FILE! It was generated by help2man 1.37.1. -.TH PDLZIP "1" "April 2013" "Pdlzip 1.4-rc2" "User Commands" +.TH PDLZIP "1" "May 2013" "Pdlzip 1.4" "User Commands" .SH NAME Pdlzip \- reduces the size of files .SH SYNOPSIS @@ -67,7 +67,7 @@ scale optimal for all files. If your files are large, very repetitive, etc, you may need to use the \fB\-\-match\-length\fR and \fB\-\-dictionary\-size\fR options directly to achieve optimal performance. .PP -Return values: 0 for a normal exit, 1 for environmental problems (file +Exit status: 0 for a normal exit, 1 for environmental problems (file not found, invalid flags, I/O errors, etc), 2 to indicate a corrupt or invalid input file, 3 for an internal consistency error (eg, bug) which caused pdlzip to panic. diff --git a/lzip.h b/lzip.h new file mode 100644 index 0000000..0ec2756 --- /dev/null +++ b/lzip.h @@ -0,0 +1,223 @@ +/* Pdlzip - Data compressor based on the LZMA algorithm + Copyright (C) 2010, 2011, 2012, 2013 Antonio Diaz Diaz. + + This program is free software: you have unlimited permission + to copy, distribute and modify it. + + 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. +*/ + +#ifndef __cplusplus +enum Bool { false = 0, true = 1 }; +typedef enum Bool bool; +#endif + +#ifndef max + #define max(x,y) ((x) >= (y) ? (x) : (y)) +#endif +#ifndef min + #define min(x,y) ((x) <= (y) ? (x) : (y)) +#endif + +typedef int State; + +enum { + min_dictionary_bits = 12, + min_dictionary_size = 1 << min_dictionary_bits, + max_dictionary_bits = 29, + max_dictionary_size = 1 << max_dictionary_bits, + literal_context_bits = 3, + pos_state_bits = 2, + + len_low_bits = 3, + len_mid_bits = 3, + len_high_bits = 8, + len_low_symbols = 1 << len_low_bits, + len_mid_symbols = 1 << len_mid_bits, + len_high_symbols = 1 << len_high_bits, + max_len_symbols = len_low_symbols + len_mid_symbols + len_high_symbols, + + min_match_len = 2, /* must be 2 */ + max_match_len = min_match_len + max_len_symbols - 1, /* 273 */ + min_match_len_limit = 5 }; + + +struct Pretty_print + { + const char * name; + const char * stdin_name; + int longest_name; + int verbosity; + bool first_post; + }; + +void Pp_init( struct Pretty_print * const pp, const char * const filenames[], + const int num_filenames, const int v ); + +static inline void Pp_set_name( struct Pretty_print * const pp, + const char * const filename ) + { + if( filename && filename[0] && strcmp( filename, "-" ) != 0 ) + pp->name = filename; + else pp->name = pp->stdin_name; + pp->first_post = true; + } + +static inline void Pp_reset( struct Pretty_print * const pp ) + { if( pp->name && pp->name[0] ) pp->first_post = true; } +void Pp_show_msg( struct Pretty_print * const pp, const char * const msg ); + + +typedef uint32_t CRC32[256]; /* Table of CRCs of all 8-bit messages. */ + +extern CRC32 crc32; + +static inline void CRC32_init( void ) + { + unsigned n; + for( n = 0; n < 256; ++n ) + { + unsigned c = n; + int k; + for( k = 0; k < 8; ++k ) + { if( c & 1 ) c = 0xEDB88320U ^ ( c >> 1 ); else c >>= 1; } + crc32[n] = c; + } + } + +static inline void CRC32_update_byte( uint32_t * const crc, const uint8_t byte ) + { *crc = crc32[(*crc^byte)&0xFF] ^ ( *crc >> 8 ); } + +static inline void CRC32_update_buf( uint32_t * const crc, + const uint8_t * const buffer, const int size ) + { + int i; + for( i = 0; i < size; ++i ) + *crc = crc32[(*crc^buffer[i])&0xFF] ^ ( *crc >> 8 ); + } + + +static inline int real_bits( unsigned value ) + { + int bits = 0; + while( value > 0 ) { value >>= 1; ++bits; } + return bits; + } + + +static const uint8_t magic_string[4] = { 0x4C, 0x5A, 0x49, 0x50 }; /* "LZIP" */ + +typedef uint8_t File_header[6]; /* 0-3 magic bytes */ + /* 4 version */ + /* 5 coded_dict_size */ +enum { Fh_size = 6 }; + +static inline void Fh_set_magic( File_header data ) + { memcpy( data, magic_string, 4 ); data[4] = 1; } + +static inline bool Fh_verify_magic( const File_header data ) + { return ( memcmp( data, magic_string, 4 ) == 0 ); } + +static inline uint8_t Fh_version( const File_header data ) + { return data[4]; } + +static inline bool Fh_verify_version( const File_header data ) + { return ( data[4] <= 1 ); } + +static inline unsigned Fh_get_dictionary_size( const File_header data ) + { + unsigned sz = ( 1 << ( data[5] & 0x1F ) ); + if( sz > min_dictionary_size ) + sz -= ( sz / 16 ) * ( ( data[5] >> 5 ) & 7 ); + return sz; + } + +static inline bool Fh_set_dictionary_size( File_header data, const int sz ) + { + if( sz >= min_dictionary_size && sz <= max_dictionary_size ) + { + data[5] = real_bits( sz - 1 ); + if( sz > min_dictionary_size ) + { + const int base_size = 1 << data[5]; + const int wedge = base_size / 16; + int i; + for( i = 7; i >= 1; --i ) + if( base_size - ( i * wedge ) >= sz ) + { data[5] |= ( i << 5 ); break; } + } + return true; + } + return false; + } + + +typedef uint8_t File_trailer[20]; + /* 0-3 CRC32 of the uncompressed data */ + /* 4-11 size of the uncompressed data */ + /* 12-19 member size including header and trailer */ + +enum { Ft_size = 20 }; + +static inline int Ft_versioned_size( const int version ) + { return ( ( version >= 1 ) ? 20 : 12 ); } + +static inline unsigned Ft_get_data_crc( const File_trailer data ) + { + unsigned tmp = 0; + int i; + for( i = 3; i >= 0; --i ) { tmp <<= 8; tmp += data[i]; } + return tmp; + } + +static inline void Ft_set_data_crc( File_trailer data, unsigned crc ) + { + int i; + for( i = 0; i <= 3; ++i ) { data[i] = (uint8_t)crc; crc >>= 8; } + } + +static inline unsigned long long Ft_get_data_size( const File_trailer data ) + { + unsigned long long tmp = 0; + int i; + for( i = 11; i >= 4; --i ) { tmp <<= 8; tmp += data[i]; } + return tmp; + } + +static inline void Ft_set_data_size( File_trailer data, unsigned long long sz ) + { + int i; + for( i = 4; i <= 11; ++i ) { data[i] = (uint8_t)sz; sz >>= 8; } + } + +static inline unsigned long long Ft_get_member_size( const File_trailer data ) + { + unsigned long long tmp = 0; + int i; + for( i = 19; i >= 12; --i ) { tmp <<= 8; tmp += data[i]; } + return tmp; + } + +static inline void Ft_set_member_size( File_trailer data, unsigned long long sz ) + { + int i; + for( i = 12; i <= 19; ++i ) { data[i] = (uint8_t)sz; sz >>= 8; } + } + + +/* defined in LzmaDec.c */ +int readblock( const int fd, uint8_t * const buf, const int size ); +int writeblock( const int fd, const uint8_t * const buf, const int size ); + +/* defined in main.c */ +extern int verbosity; + +void show_error( const char * const msg, const int errcode, const bool help ); +void internal_error( const char * const msg ); + +#define SZ_OK 0 + +#define SZ_ERROR_READ 8 +#define SZ_ERROR_WRITE 9 diff --git a/main.c b/main.c index c2f3319..6142505 100644 --- a/main.c +++ b/main.c @@ -10,7 +10,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. */ /* - Return values: 0 for a normal exit, 1 for environmental problems + Exit status: 0 for a normal exit, 1 for environmental problems (file not found, invalid flags, I/O errors, etc), 2 to indicate a corrupt or invalid input file, 3 for an internal consistency error (eg, bug) which caused pdlzip to panic. @@ -45,7 +45,7 @@ #endif #include "carg_parser.h" -#include "clzip.h" +#include "lzip.h" #include "LzmaDec.h" #include "LzmaEnc.h" @@ -118,7 +118,7 @@ static void show_help( void ) "scale optimal for all files. If your files are large, very repetitive,\n" "etc, you may need to use the --match-length and --dictionary-size\n" "options directly to achieve optimal performance.\n" - "\nReturn values: 0 for a normal exit, 1 for environmental problems (file\n" + "\nExit status: 0 for a normal exit, 1 for environmental problems (file\n" "not found, invalid flags, I/O errors, etc), 2 to indicate a corrupt or\n" "invalid input file, 3 for an internal consistency error (eg, bug) which\n" "caused pdlzip to panic.\n" -- cgit v1.2.3