Merging upstream version 1.5.
Signed-off-by: Daniel Baumann <daniel@debian.org>
This commit is contained in:
parent
f10fc87440
commit
adeb771590
GPG key ID:
FBB4F0E80A80222F
11 changed files with 91 additions and 91 deletions
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@ -1,11 +1,6 @@
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2014-01-21 Antonio Diaz Diaz <antonio@gnu.org>
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2014-04-11 Antonio Diaz Diaz <antonio@gnu.org>
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* Version 1.5-rc2 released.
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* Minor optimizations.
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2013-10-30 Antonio Diaz Diaz <antonio@gnu.org>
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* Version 1.5-rc1 released.
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* Version 1.5 released.
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* main.c: Added new option '-u, --buffer-size' (low memory mode).
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* main.c (close_and_set_permissions): Behave like 'cp -p'.
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12
INSTALL
12
INSTALL
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@ -43,12 +43,12 @@ the main archive.
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Another way
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-----------
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You can also compile lunzip into a separate directory. To do this, you
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must use a version of 'make' that supports the 'VPATH' variable, such
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as GNU 'make'. 'cd' to the directory where you want the object files
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and executables to go and run the 'configure' script. 'configure'
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automatically checks for the source code in '.', in '..' and in the
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directory that 'configure' is in.
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You can also compile lunzip into a separate directory.
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To do this, you must use a version of 'make' that supports the 'VPATH'
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variable, such as GNU 'make'. 'cd' to the directory where you want the
|
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object files and executables to go and run the 'configure' script.
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'configure' automatically checks for the source code in '.', in '..' and
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in the directory that 'configure' is in.
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'configure' recognizes the option '--srcdir=DIR' to control where to
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look for the sources. Usually 'configure' can determine that directory
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29
README
29
README
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@ -5,20 +5,6 @@ small size makes it well suited for embedded devices or software
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installers that need to decompress files but do not need compression
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capabilities. Lunzip is fully compatible with lzip-1.4 or newer.
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If the size of the output buffer is specified with the "--buffer-size"
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option, lunzip uses the decompressed file as dictionary for distances
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beyond the buffer size and is able to decompress any file using as
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little memory as 50 kB, irrespective of the dictionary size used to
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compress the file. Of course, the smaller the output buffer size used in
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relation to the dictionary size, the more accesses to disk are needed
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and the slower the decompression is. This "low memory" mode only works
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when decompressing to a regular file and is intended for systems without
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enough memory (RAM + swap) to keep the whole dictionary at once.
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The amount of memory required by lunzip to decompress a file is about
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46 kB larger than the dictionary size used to compress that file, unless
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the "--buffer-size" option is specified.
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The lzip file format is designed for long-term data archiving. It is
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clean, provides very safe 4 factor integrity checking, and is backed by
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the recovery capabilities of lziprecover.
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@ -28,6 +14,21 @@ bzip2, which makes it safer than decompressors returning ambiguous
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warning values (like gunzip) when it is used as a back end for tar or
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zutils.
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Lunzip provides a "low memory" mode able to decompress any file using as
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little memory as 50 kB, irrespective of the dictionary size used to
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compress the file. To activate it, specify the size of the output buffer
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with the "--buffer-size" option and lunzip will use the decompressed
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file as dictionary for distances beyond the buffer size. Of course, the
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smaller the output buffer size used in relation to the dictionary size,
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the more accesses to disk are needed and the slower the decompression
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is. This "low memory" mode only works when decompressing to a regular
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file and is intended for systems without enough memory (RAM + swap) to
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keep the whole dictionary at once.
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The amount of memory required by lunzip to decompress a file is about
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46 kB larger than the dictionary size used to compress that file, unless
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the "--buffer-size" option is specified.
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Lunzip attempts to guess the name for the decompressed file from that of
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the compressed file as follows:
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@ -176,7 +176,8 @@ static char parse_short_option( struct Arg_parser * const ap,
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if( index < 0 )
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{
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add_error( ap, "invalid option -- " ); add_error( ap, code_str );
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add_error( ap, "invalid option -- '" ); add_error( ap, code_str );
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add_error( ap, "'" );
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return 1;
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}
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@ -191,8 +192,8 @@ static char parse_short_option( struct Arg_parser * const ap,
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{
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if( !arg || !arg[0] )
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{
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add_error( ap, "option requires an argument -- " );
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add_error( ap, code_str );
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add_error( ap, "option requires an argument -- '" );
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add_error( ap, code_str ); add_error( ap, "'" );
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return 1;
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}
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++*argindp; cind = 0;
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2
configure
vendored
2
configure
vendored
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@ -6,7 +6,7 @@
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# to copy, distribute and modify it.
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pkgname=lunzip
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pkgversion=1.5-rc2
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pkgversion=1.5
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progname=lunzip
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srctrigger=doc/${progname}.1
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@ -45,7 +45,7 @@ void Pp_show_msg( struct Pretty_print * const pp, const char * const msg )
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for( i = 0; i < len; ++i ) fprintf( stderr, " " );
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if( !msg ) fflush( stderr );
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}
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if( msg ) fprintf( stderr, "%s.\n", msg );
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if( msg ) fprintf( stderr, "%s\n", msg );
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}
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}
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@ -127,7 +127,7 @@ void LZd_flush_data( struct LZ_decoder * const d )
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}
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bool LZd_verify_trailer( struct LZ_decoder * const d,
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static bool LZd_verify_trailer( struct LZ_decoder * const d,
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struct Pretty_print * const pp )
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{
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File_trailer trailer;
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@ -153,7 +153,7 @@ bool LZd_verify_trailer( struct LZ_decoder * const d,
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if( d->rdec->code != 0 )
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{
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error = true;
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Pp_show_msg( pp, "Range decoder final code is not zero" );
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Pp_show_msg( pp, "Range decoder final code is not zero." );
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}
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trailer_crc = Ft_get_data_crc( trailer );
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if( trailer_crc != LZd_crc( d ) )
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@ -208,7 +208,7 @@ int LZd_decode_member( struct LZ_decoder * const d,
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struct Range_decoder * const rdec = d->rdec;
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void (* const copy_block)
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( struct LZ_decoder * const d, const int distance, int len ) =
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( d->buffer_size >= (int)d->dictionary_size ) ?
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( (unsigned)d->buffer_size >= d->dictionary_size ) ?
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&LZd_copy_block : &LZd_copy_block2;
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unsigned rep0 = 0; /* rep[0-3] latest four distances */
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unsigned rep1 = 0; /* used for efficient coding of */
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@ -158,7 +158,7 @@ static inline int Rd_decode_tree6( struct Range_decoder * const rdec,
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symbol = ( symbol << 1 ) | Rd_decode_bit( rdec, &bm[symbol] );
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symbol = ( symbol << 1 ) | Rd_decode_bit( rdec, &bm[symbol] );
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symbol = ( symbol << 1 ) | Rd_decode_bit( rdec, &bm[symbol] );
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return symbol - (1 << 6);
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return symbol & 0x3F;
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}
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static inline int Rd_decode_tree_reversed( struct Range_decoder * const rdec,
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@ -256,9 +256,6 @@ struct LZ_decoder
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void LZd_flush_data( struct LZ_decoder * const d );
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bool LZd_verify_trailer( struct LZ_decoder * const d,
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struct Pretty_print * const pp );
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int seek_read( const int fd, uint8_t * const buf, const int size,
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const int offset );
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20
doc/lunzip.1
20
doc/lunzip.1
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@ -1,7 +1,7 @@
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.\" DO NOT MODIFY THIS FILE! It was generated by help2man 1.37.1.
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.TH LUNZIP "1" "January 2014" "Lunzip 1.5-rc2" "User Commands"
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.TH LUNZIP "1" "April 2014" "lunzip 1.5" "User Commands"
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.SH NAME
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Lunzip \- decompressor for lzip files
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lunzip \- decompressor for lzip files
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.SH SYNOPSIS
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.B lunzip
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[\fIoptions\fR] [\fIfiles\fR]
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@ -11,14 +11,14 @@ small size makes it well suited for embedded devices or software
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installers that need to decompress files but do not need compression
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capabilities. Lunzip is fully compatible with lzip\-1.4 or newer.
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.PP
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If the size of the output buffer is specified with the '\-\-buffer\-size'
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option, lunzip uses the decompressed file as dictionary for distances
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beyond the buffer size and is able to decompress any file using as
|
||||
Lunzip provides a 'low memory' mode able to decompress any file using as
|
||||
little memory as 50 kB, irrespective of the dictionary size used to
|
||||
compress the file. Of course, the smaller the output buffer size used in
|
||||
relation to the dictionary size, the more accesses to disk are needed
|
||||
and the slower the decompression is. This 'low memory' mode only works
|
||||
when decompressing to a regular file.
|
||||
compress the file. To activate it, specify the size of the output buffer
|
||||
with the '\-\-buffer\-size' option and lunzip will use the decompressed
|
||||
file as dictionary for distances beyond the buffer size. Of course, the
|
||||
smaller the output buffer size used in relation to the dictionary size,
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||||
the more accesses to disk are needed and the slower the decompression is.
|
||||
This 'low memory' mode only works when decompressing to a regular file.
|
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.SH OPTIONS
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.TP
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\fB\-h\fR, \fB\-\-help\fR
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@ -56,6 +56,8 @@ be verbose (a 2nd \fB\-v\fR gives more)
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.PP
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If no file names are given, lunzip decompresses from standard input to
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standard output.
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Numbers may be followed by a multiplier: k = kB = 10^3 = 1000,
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Ki = KiB = 2^10 = 1024, M = 10^6, Mi = 2^20, G = 10^9, Gi = 2^30, etc...
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||||
.PP
|
||||
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
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||||
|
|
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|||
2
lzip.h
2
lzip.h
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|
@ -46,7 +46,7 @@ static inline State St_set_short_rep( const State st )
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|||
|
||||
enum {
|
||||
min_dictionary_bits = 12,
|
||||
min_dictionary_size = 1 << min_dictionary_bits,
|
||||
min_dictionary_size = 1 << min_dictionary_bits, /* >= modeled_distances */
|
||||
max_dictionary_bits = 29,
|
||||
max_dictionary_size = 1 << max_dictionary_bits,
|
||||
literal_context_bits = 3,
|
||||
|
|
|
|||
40
main.c
40
main.c
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|
@ -88,14 +88,14 @@ static void show_help( void )
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|||
"small size makes it well suited for embedded devices or software\n"
|
||||
"installers that need to decompress files but do not need compression\n"
|
||||
"capabilities. Lunzip is fully compatible with lzip-1.4 or newer.\n"
|
||||
"\nIf the size of the output buffer is specified with the '--buffer-size'\n"
|
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"option, lunzip uses the decompressed file as dictionary for distances\n"
|
||||
"beyond the buffer size and is able to decompress any file using as\n"
|
||||
"\nLunzip provides a 'low memory' mode able to decompress any file using as\n"
|
||||
"little memory as 50 kB, irrespective of the dictionary size used to\n"
|
||||
"compress the file. Of course, the smaller the output buffer size used in\n"
|
||||
"relation to the dictionary size, the more accesses to disk are needed\n"
|
||||
"and the slower the decompression is. This 'low memory' mode only works\n"
|
||||
"when decompressing to a regular file.\n" );
|
||||
"compress the file. To activate it, specify the size of the output buffer\n"
|
||||
"with the '--buffer-size' option and lunzip will use the decompressed\n"
|
||||
"file as dictionary for distances beyond the buffer size. Of course, the\n"
|
||||
"smaller the output buffer size used in relation to the dictionary size,\n"
|
||||
"the more accesses to disk are needed and the slower the decompression is.\n"
|
||||
"This 'low memory' mode only works when decompressing to a regular file.\n" );
|
||||
printf( "\nUsage: %s [options] [files]\n", invocation_name );
|
||||
printf( "\nOptions:\n"
|
||||
" -h, --help display this help and exit\n"
|
||||
|
|
@ -111,6 +111,8 @@ static void show_help( void )
|
|||
" -v, --verbose be verbose (a 2nd -v gives more)\n"
|
||||
"If no file names are given, lunzip decompresses from standard input to\n"
|
||||
"standard output.\n"
|
||||
"Numbers may be followed by a multiplier: k = kB = 10^3 = 1000,\n"
|
||||
"Ki = KiB = 2^10 = 1024, M = 10^6, Mi = 2^20, G = 10^9, Gi = 2^30, etc...\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"
|
||||
|
|
@ -122,7 +124,7 @@ static void show_help( void )
|
|||
|
||||
static void show_version( void )
|
||||
{
|
||||
printf( "%s %s\n", Program_name, PROGVERSION );
|
||||
printf( "%s %s\n", program_name, PROGVERSION );
|
||||
printf( "Copyright (C) %s Antonio Diaz Diaz.\n", program_year );
|
||||
printf( "License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>\n"
|
||||
"This is free software: you are free to change and redistribute it.\n"
|
||||
|
|
@ -232,8 +234,7 @@ static int open_instream( const char * const name, struct stat * const in_statsp
|
|||
const bool no_ofile )
|
||||
{
|
||||
int infd;
|
||||
do infd = open( name, O_RDONLY | O_BINARY );
|
||||
while( infd < 0 && errno == EINTR );
|
||||
infd = open( name, O_RDONLY | O_BINARY );
|
||||
if( infd < 0 )
|
||||
{
|
||||
if( verbosity >= 0 )
|
||||
|
|
@ -305,8 +306,7 @@ static bool open_outstream( const bool force )
|
|||
int flags = O_APPEND | O_CREAT | O_RDWR | O_BINARY;
|
||||
if( force ) flags |= O_TRUNC; else flags |= O_EXCL;
|
||||
|
||||
do outfd = open( output_filename, flags, outfd_mode );
|
||||
while( outfd < 0 && errno == EINTR );
|
||||
outfd = open( output_filename, flags, outfd_mode );
|
||||
if( outfd < 0 && verbosity >= 0 )
|
||||
{
|
||||
if( errno == EEXIST )
|
||||
|
|
@ -390,14 +390,14 @@ static int decompress( const int buffer_size, const int infd,
|
|||
if( Rd_finished( &rdec ) ) /* End Of File */
|
||||
{
|
||||
if( first_member )
|
||||
{ Pp_show_msg( pp, "File ends unexpectedly at member header" );
|
||||
{ Pp_show_msg( pp, "File ends unexpectedly at member header." );
|
||||
retval = 2; }
|
||||
break;
|
||||
}
|
||||
if( !Fh_verify_magic( header ) )
|
||||
{
|
||||
if( !first_member ) break; /* trailing garbage */
|
||||
Pp_show_msg( pp, "Bad magic number (file not in lzip format)" );
|
||||
Pp_show_msg( pp, "Bad magic number (file not in lzip format)." );
|
||||
retval = 2; break;
|
||||
}
|
||||
if( !Fh_verify_version( header ) )
|
||||
|
|
@ -411,7 +411,7 @@ static int decompress( const int buffer_size, const int infd,
|
|||
dictionary_size = Fh_get_dictionary_size( header );
|
||||
if( dictionary_size < min_dictionary_size ||
|
||||
dictionary_size > max_dictionary_size )
|
||||
{ Pp_show_msg( pp, "Invalid dictionary size in member header" );
|
||||
{ Pp_show_msg( pp, "Invalid dictionary size in member header." );
|
||||
retval = 2; break; }
|
||||
|
||||
if( verbosity >= 2 || ( verbosity == 1 && first_member ) )
|
||||
|
|
@ -432,10 +432,10 @@ static int decompress( const int buffer_size, const int infd,
|
|||
{
|
||||
Pp_show_msg( pp, 0 );
|
||||
if( result == 2 )
|
||||
fprintf( stderr, "File ends unexpectedly at pos %llu\n",
|
||||
fprintf( stderr, "File ends unexpectedly at pos %llu.\n",
|
||||
partial_file_pos );
|
||||
else
|
||||
fprintf( stderr, "Decoder error at pos %llu\n", partial_file_pos );
|
||||
fprintf( stderr, "Decoder error at pos %llu.\n", partial_file_pos );
|
||||
}
|
||||
retval = 2; break;
|
||||
}
|
||||
|
|
@ -472,7 +472,7 @@ void show_error( const char * const msg, const int errcode, const bool help )
|
|||
if( msg && msg[0] )
|
||||
{
|
||||
fprintf( stderr, "%s: %s", program_name, msg );
|
||||
if( errcode > 0 ) fprintf( stderr, ": %s", strerror( errcode ) );
|
||||
if( errcode > 0 ) fprintf( stderr, ": %s.", strerror( errcode ) );
|
||||
fprintf( stderr, "\n" );
|
||||
}
|
||||
if( help )
|
||||
|
|
@ -485,7 +485,7 @@ void show_error( const char * const msg, const int errcode, const bool help )
|
|||
void internal_error( const char * const msg )
|
||||
{
|
||||
if( verbosity >= 0 )
|
||||
fprintf( stderr, "%s: internal error: %s.\n", program_name, msg );
|
||||
fprintf( stderr, "%s: internal error: %s\n", program_name, msg );
|
||||
exit( 3 );
|
||||
}
|
||||
|
||||
|
|
@ -553,7 +553,7 @@ int main( const int argc, const char * const argv[] )
|
|||
case 'u': buffer_size = get_dict_size( arg ); break;
|
||||
case 'v': if( verbosity < 4 ) ++verbosity; break;
|
||||
case 'V': show_version(); return 0;
|
||||
default : internal_error( "uncaught option" );
|
||||
default : internal_error( "uncaught option." );
|
||||
}
|
||||
} /* end process options */
|
||||
|
||||
|
|
|
|||
|
|
@ -12,7 +12,7 @@ testdir=`cd "$1" ; pwd`
|
|||
LZIP="${objdir}"/lunzip
|
||||
framework_failure() { echo "failure in testing framework" ; exit 1 ; }
|
||||
|
||||
if [ ! -x "${LZIP}" ] ; then
|
||||
if [ ! -f "${LZIP}" ] || [ ! -x "${LZIP}" ] ; then
|
||||
echo "${LZIP}: cannot execute"
|
||||
exit 1
|
||||
fi
|
||||
|
|
@ -28,21 +28,24 @@ fail=0
|
|||
printf "testing lunzip-%s..." "$2"
|
||||
|
||||
"${LZIP}" -cqu-1 "${in_lz}" > /dev/null
|
||||
if [ $? = 1 ] ; then printf . ; else fail=1 ; printf - ; fi
|
||||
if [ $? = 1 ] ; then printf . ; else printf - ; fail=1 ; fi
|
||||
"${LZIP}" -cqu0 "${in_lz}" > /dev/null
|
||||
if [ $? = 1 ] ; then printf . ; else fail=1 ; printf - ; fi
|
||||
if [ $? = 1 ] ; then printf . ; else printf - ; fail=1 ; fi
|
||||
"${LZIP}" -cqu4095 "${in_lz}" > /dev/null
|
||||
if [ $? = 1 ] ; then printf . ; else fail=1 ; printf - ; fi
|
||||
if [ $? = 1 ] ; then printf . ; else printf - ; fail=1 ; fi
|
||||
"${LZIP}" -cqu513MiB "${in_lz}" > /dev/null
|
||||
if [ $? = 1 ] ; then printf . ; else fail=1 ; printf - ; fi
|
||||
"${LZIP}" -tq in
|
||||
if [ $? = 2 ] ; then printf . ; else fail=1 ; printf - ; fi
|
||||
"${LZIP}" -tq < in
|
||||
if [ $? = 2 ] ; then printf . ; else fail=1 ; printf - ; fi
|
||||
if [ $? = 1 ] ; then printf . ; else printf - ; fail=1 ; fi
|
||||
printf " in: Bad magic number (file not in lzip format).\n" > msg
|
||||
"${LZIP}" -t in 2> out
|
||||
if [ $? = 2 ] && cmp out msg ; then printf . ; else printf - ; fail=1 ; fi
|
||||
printf " (stdin): Bad magic number (file not in lzip format).\n" > msg
|
||||
"${LZIP}" -t < in 2> out
|
||||
if [ $? = 2 ] && cmp out msg ; then printf . ; else printf - ; fail=1 ; fi
|
||||
rm -f out msg
|
||||
"${LZIP}" -cdq in
|
||||
if [ $? = 2 ] ; then printf . ; else fail=1 ; printf - ; fi
|
||||
if [ $? = 2 ] ; then printf . ; else printf - ; fail=1 ; fi
|
||||
"${LZIP}" -cdq < in
|
||||
if [ $? = 2 ] ; then printf . ; else fail=1 ; printf - ; fi
|
||||
if [ $? = 2 ] ; then printf . ; else printf - ; fail=1 ; fi
|
||||
dd if="${in_lz}" bs=1 count=6 2> /dev/null | "${LZIP}" -tq
|
||||
if [ $? = 2 ] ; then printf . ; else printf - ; fail=1 ; fi
|
||||
dd if="${in_lz}" bs=1 count=20 2> /dev/null | "${LZIP}" -tq
|
||||
|
|
@ -54,6 +57,7 @@ cmp in copy || fail=1
|
|||
printf .
|
||||
|
||||
cat "${in_lz}" > copy.lz || framework_failure
|
||||
printf "to be overwritten" > copy || framework_failure
|
||||
"${LZIP}" -df copy.lz || fail=1
|
||||
cmp in copy || fail=1
|
||||
printf .
|
||||
|
|
@ -63,13 +67,6 @@ printf "to be overwritten" > copy || framework_failure
|
|||
cmp in copy || fail=1
|
||||
printf .
|
||||
|
||||
for i in 12 4096 4Ki 29 512KiB ; do
|
||||
printf "to be overwritten" > copy || framework_failure
|
||||
"${LZIP}" -df -u$i -o copy < "${in_lz}" || fail=1
|
||||
cmp in copy || fail=1
|
||||
printf .
|
||||
done
|
||||
|
||||
cat "${in_lz}" > anyothername || framework_failure
|
||||
"${LZIP}" -d anyothername || fail=1
|
||||
cmp in anyothername.out || fail=1
|
||||
|
|
@ -89,6 +86,13 @@ printf "to be overwritten" > copy2 || framework_failure
|
|||
cmp in2 copy2 || fail=1
|
||||
printf .
|
||||
|
||||
for i in 12 4096 4Ki 29 512KiB ; do
|
||||
printf "to be overwritten" > copy || framework_failure
|
||||
"${LZIP}" -df -u$i -o copy < "${in_lz}" || fail=1
|
||||
cmp in copy || fail=1
|
||||
printf .
|
||||
done
|
||||
|
||||
echo
|
||||
if [ ${fail} = 0 ] ; then
|
||||
echo "tests completed successfully."
|
||||
|
|
|
|||
Loading…
Add table
Reference in a new issue