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import NetBSD bzip2 and libbz2

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This commit is contained in:
Vivek Prakash 2011-08-17 19:48:49 +00:00 committed by Ben Gras
parent 349a158056
commit 79bfef9aab
83 changed files with 37046 additions and 2236 deletions
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2
commands/Makefile
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@ -4,7 +4,7 @@
SUBDIR= aal add_route arp ash at autil awk \ SUBDIR= aal add_route arp ash at autil awk \
backup badblocks banner basename binpackage \ backup badblocks banner basename binpackage \
binpackages bzip2 bzip2recover cal calendar \ binpackages cal calendar \
cat cawf cd cdprobe checkhier chmem \ cat cawf cd cdprobe checkhier chmem \
chmod chown chroot ci cksum cleantmp clear cmp co \ chmod chown chroot ci cksum cleantmp clear cmp co \
comm compress cp crc cron crontab cut date \ comm compress cp crc cron crontab cut date \

14
commands/bzip2/Makefile
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@ -1,14 +0,0 @@
.include <bsd.own.mk>
PROG= bzip2
DPADD+= ${LIBBZ2}
LDADD+= -lbz2
MLINKS+= bzip2.1 bunzip2.1\
bzip2.1 bzcat.1\
bzip2.1 bzip2recover.1
LINKS+= ${BINDIR}/bzip2 ${BINDIR}/bunzip2
LINKS+= ${BINDIR}/bzip2 ${BINDIR}/bzcat
.include <bsd.prog.mk>

44
commands/bzip2/Makefile-libbz2_so
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# This Makefile builds a shared version of the library,
# libbz2.so.1.0.3, with soname libbz2.so.1.0,
# at least on x86-Linux (RedHat 7.2),
# with gcc-2.96 20000731 (Red Hat Linux 7.1 2.96-98).
# Please see the README file for some
# important info about building the library like this.
SHELL=/bin/sh
CC=gcc
BIGFILES=-D_FILE_OFFSET_BITS=64
CFLAGS=-fpic -fPIC -Wall -Winline -O -g
OBJS= blocksort.o \
huffman.o \
crctable.o \
randtable.o \
compress.o \
decompress.o \
bzlib.o
all: $(OBJS)
$(CC) -shared -Wl,-soname -Wl,libbz2.so.1.0 -o libbz2.so.1.0.3 $(OBJS)
$(CC) $(CFLAGS) -o bzip2-shared bzip2.c libbz2.so.1.0.3
rm -f libbz2.so.1.0
ln -s libbz2.so.1.0.3 libbz2.so.1.0
clean:
rm -f $(OBJS) bzip2.o libbz2.so.1.0.3 libbz2.so.1.0 bzip2-shared
blocksort.o: blocksort.c
$(CC) $(CFLAGS) -c blocksort.c
huffman.o: huffman.c
$(CC) $(CFLAGS) -c huffman.c
crctable.o: crctable.c
$(CC) $(CFLAGS) -c crctable.c
randtable.o: randtable.c
$(CC) $(CFLAGS) -c randtable.c
compress.o: compress.c
$(CC) $(CFLAGS) -c compress.c
decompress.o: decompress.c
$(CC) $(CFLAGS) -c decompress.c
bzlib.o: bzlib.c
$(CC) $(CFLAGS) -c bzlib.c

34
commands/bzip2/Y2K_INFO
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Y2K status of bzip2 and libbzip2, versions 0.1, 0.9.0 and 0.9.5
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Informally speaking:
bzip2 is a compression program built on top of libbzip2,
a library which does the real work of compression and
decompression. As far as I am aware, libbzip2 does not have
any date-related code at all.
bzip2 itself copies dates from source to destination files
when compressing or decompressing, using the 'stat' and 'utime'
UNIX system calls. It doesn't examine, manipulate or store the
dates in any way. So as far as I can see, there shouldn't be any
problem with bzip2 providing 'stat' and 'utime' work correctly
on your system.
On non-unix platforms (those for which BZ_UNIX in bzip2.c is
not set to 1), bzip2 doesn't even do the date copying.
Overall, informally speaking, I don't think bzip2 or libbzip2
have a Y2K problem.
Formally speaking:
I am not prepared to offer you any assurance whatsoever
regarding Y2K issues in my software. You alone assume the
entire risk of using the software. The disclaimer of liability
in the LICENSE file in the bzip2 source distribution continues
to apply on this issue as with every other issue pertaining
to the software.
Julian Seward
Cambridge, UK
25 August 1999

466
commands/bzip2/bzip2.1
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.PU
.TH bzip2 1
.SH NAME
bzip2, bunzip2, smallbunzip2 \- a block-sorting file compressor, v1.0.3
.br
bzcat \- decompresses files to stdout
.br
bzip2recover \- recovers data from damaged bzip2 files
.SH SYNOPSIS
.ll +8
.B bzip2
.RB [ " \-cdfkqstvzVL123456789 " ]
[
.I "filenames \&..."
]
.ll -8
.br
.B bunzip2
.RB [ " \-fkvsVL " ]
[
.I "filenames \&..."
]
.br
.B smallbunzip2
.RB [ " \-fkvsVL " ]
[
.I "filenames \&..."
]
.br
.B bzcat
.RB [ " \-s " ]
[
.I "filenames \&..."
]
.br
.B bzip2recover
.I "filename"
.SH DESCRIPTION
.I bzip2
compresses files using the Burrows-Wheeler block sorting
text compression algorithm, and Huffman coding. Compression is
generally considerably better than that achieved by more conventional
LZ77/LZ78-based compressors, and approaches the performance of the PPM
family of statistical compressors.
The command-line options are deliberately very similar to
those of
.I GNU gzip,
but they are not identical.
.I bzip2
expects a list of file names to accompany the
command-line flags. Each file is replaced by a compressed version of
itself, with the name "original_name.bz2".
Each compressed file
has the same modification date, permissions, and, when possible,
ownership as the corresponding original, so that these properties can
be correctly restored at decompression time. File name handling is
naive in the sense that there is no mechanism for preserving original
file names, permissions, ownerships or dates in filesystems which lack
these concepts, or have serious file name length restrictions, such as
MS-DOS.
.I bzip2
and
.I bunzip2
will by default not overwrite existing
files. If you want this to happen, specify the \-f flag.
If no file names are specified,
.I bzip2
compresses from standard
input to standard output. In this case,
.I bzip2
will decline to
write compressed output to a terminal, as this would be entirely
incomprehensible and therefore pointless.
.I bunzip2
(or
.I bzip2 \-d)
decompresses all
specified files.
.I smallbunzip2
is identical to
.I bunzip2
on modern MINIX, but used to use less memory
before virtual memory was introduced.
Files which were not created by
.I bzip2
will be detected and ignored, and a warning issued.
.I bzip2
attempts to guess the filename for the decompressed file
from that of the compressed file as follows:
filename.bz2 becomes filename
filename.bz becomes filename
filename.tbz2 becomes filename.tar
filename.tbz becomes filename.tar
anyothername becomes anyothername.out
If the file does not end in one of the recognised endings,
.I .bz2,
.I .bz,
.I .tbz2
or
.I .tbz,
.I bzip2
complains that it cannot
guess the name of the original file, and uses the original name
with
.I .out
appended.
As with compression, supplying no
filenames causes decompression from
standard input to standard output.
.I bunzip2
will correctly decompress a file which is the
concatenation of two or more compressed files. The result is the
concatenation of the corresponding uncompressed files. Integrity
testing (\-t)
of concatenated
compressed files is also supported.
You can also compress or decompress files to the standard output by
giving the \-c flag. Multiple files may be compressed and
decompressed like this. The resulting outputs are fed sequentially to
stdout. Compression of multiple files
in this manner generates a stream
containing multiple compressed file representations. Such a stream
can be decompressed correctly only by
.I bzip2
version 0.9.0 or
later. Earlier versions of
.I bzip2
will stop after decompressing
the first file in the stream.
.I bzcat
(or
.I bzip2 -dc)
decompresses all specified files to
the standard output.
.I bzip2
will read arguments from the environment variables
.I BZIP2
and
.I BZIP,
in that order, and will process them
before any arguments read from the command line. This gives a
convenient way to supply default arguments.
Compression is always performed, even if the compressed
file is slightly
larger than the original. Files of less than about one hundred bytes
tend to get larger, since the compression mechanism has a constant
overhead in the region of 50 bytes. Random data (including the output
of most file compressors) is coded at about 8.05 bits per byte, giving
an expansion of around 0.5%.
As a self-check for your protection,
.I
bzip2
uses 32-bit CRCs to
make sure that the decompressed version of a file is identical to the
original. This guards against corruption of the compressed data, and
against undetected bugs in
.I bzip2
(hopefully very unlikely). The
chances of data corruption going undetected is microscopic, about one
chance in four billion for each file processed. Be aware, though, that
the check occurs upon decompression, so it can only tell you that
something is wrong. It can't help you
recover the original uncompressed
data. You can use
.I bzip2recover
to try to recover data from
damaged files.
Return values: 0 for a normal exit, 1 for environmental problems (file
not found, invalid flags, I/O errors, &c), 2 to indicate a corrupt
compressed file, 3 for an internal consistency error (eg, bug) which
caused
.I bzip2
to panic.
.SH OPTIONS
.TP
.B \-c --stdout
Compress or decompress to standard output.
.TP
.B \-d --decompress
Force decompression.
.I bzip2,
.I bunzip2
and
.I bzcat
are
really the same program, and the decision about what actions to take is
done on the basis of which name is used. This flag overrides that
mechanism, and forces
.I bzip2
to decompress.
.TP
.B \-z --compress
The complement to \-d: forces compression, regardless of the
invocation name.
.TP
.B \-t --test
Check integrity of the specified file(s), but don't decompress them.
This really performs a trial decompression and throws away the result.
.TP
.B \-f --force
Force overwrite of output files. Normally,
.I bzip2
will not overwrite
existing output files. Also forces
.I bzip2
to break hard links
to files, which it otherwise wouldn't do.
bzip2 normally declines to decompress files which don't have the
correct magic header bytes. If forced (-f), however, it will pass
such files through unmodified. This is how GNU gzip behaves.
.TP
.B \-k --keep
Keep (don't delete) input files during compression
or decompression.
.TP
.B \-s --small
Reduce memory usage, for compression, decompression and testing. Files
are decompressed and tested using a modified algorithm which only
requires 2.5 bytes per block byte. This means any file can be
decompressed in 2300k of memory, albeit at about half the normal speed.
During compression, \-s selects a block size of 200k, which limits
memory use to around the same figure, at the expense of your compression
ratio. In short, if your machine is low on memory (8 megabytes or
less), use \-s for everything. See MEMORY MANAGEMENT below.
.TP
.B \-q --quiet
Suppress non-essential warning messages. Messages pertaining to
I/O errors and other critical events will not be suppressed.
.TP
.B \-v --verbose
Verbose mode -- show the compression ratio for each file processed.
Further \-v's increase the verbosity level, spewing out lots of
information which is primarily of interest for diagnostic purposes.
.TP
.B \-L --license -V --version
Display the software version, license terms and conditions.
.TP
.B \-1 (or \-\-fast) to \-9 (or \-\-best)
Set the block size to 100 k, 200 k .. 900 k when compressing. Has no
effect when decompressing. See MEMORY MANAGEMENT below.
The \-\-fast and \-\-best aliases are primarily for GNU gzip
compatibility. In particular, \-\-fast doesn't make things
significantly faster.
And \-\-best merely selects the default behaviour.
.TP
.B \--
Treats all subsequent arguments as file names, even if they start
with a dash. This is so you can handle files with names beginning
with a dash, for example: bzip2 \-- \-myfilename.
.TP
.B \--repetitive-fast --repetitive-best
These flags are redundant in versions 0.9.5 and above. They provided
some coarse control over the behaviour of the sorting algorithm in
earlier versions, which was sometimes useful. 0.9.5 and above have an
improved algorithm which renders these flags irrelevant.
.SH MEMORY MANAGEMENT
.I bzip2
compresses large files in blocks. The block size affects
both the compression ratio achieved, and the amount of memory needed for
compression and decompression. The flags \-1 through \-9
specify the block size to be 100,000 bytes through 900,000 bytes (the
default) respectively. At decompression time, the block size used for
compression is read from the header of the compressed file, and
.I bunzip2
then allocates itself just enough memory to decompress
the file. Since block sizes are stored in compressed files, it follows
that the flags \-1 to \-9 are irrelevant to and so ignored
during decompression.
Compression and decompression requirements,
in bytes, can be estimated as:
Compression: 400k + ( 8 x block size )
Decompression: 100k + ( 4 x block size ), or
100k + ( 2.5 x block size )
Larger block sizes give rapidly diminishing marginal returns. Most of
the compression comes from the first two or three hundred k of block
size, a fact worth bearing in mind when using
.I bzip2
on small machines.
It is also important to appreciate that the decompression memory
requirement is set at compression time by the choice of block size.
For files compressed with the default 900k block size,
.I bunzip2
will require about 3700 kbytes to decompress. To support decompression
of any file on a 4 megabyte machine,
.I bunzip2
has an option to
decompress using approximately half this amount of memory, about 2300
kbytes. Decompression speed is also halved, so you should use this
option only where necessary. The relevant flag is -s.
In general, try and use the largest block size memory constraints allow,
since that maximises the compression achieved. Compression and
decompression speed are virtually unaffected by block size.
Another significant point applies to files which fit in a single block
-- that means most files you'd encounter using a large block size. The
amount of real memory touched is proportional to the size of the file,
since the file is smaller than a block. For example, compressing a file
20,000 bytes long with the flag -9 will cause the compressor to
allocate around 7600k of memory, but only touch 400k + 20000 * 8 = 560
kbytes of it. Similarly, the decompressor will allocate 3700k but only
touch 100k + 20000 * 4 = 180 kbytes.
Here is a table which summarises the maximum memory usage for different
block sizes. Also recorded is the total compressed size for 14 files of
the Calgary Text Compression Corpus totalling 3,141,622 bytes. This
column gives some feel for how compression varies with block size.
These figures tend to understate the advantage of larger block sizes for
larger files, since the Corpus is dominated by smaller files.
Compress Decompress Decompress Corpus
Flag usage usage -s usage Size
-1 1200k 500k 350k 914704
-2 2000k 900k 600k 877703
-3 2800k 1300k 850k 860338
-4 3600k 1700k 1100k 846899
-5 4400k 2100k 1350k 845160
-6 5200k 2500k 1600k 838626
-7 6100k 2900k 1850k 834096
-8 6800k 3300k 2100k 828642
-9 7600k 3700k 2350k 828642
.SH RECOVERING DATA FROM DAMAGED FILES
.I bzip2
compresses files in blocks, usually 900kbytes long. Each
block is handled independently. If a media or transmission error causes
a multi-block .bz2
file to become damaged, it may be possible to
recover data from the undamaged blocks in the file.
The compressed representation of each block is delimited by a 48-bit
pattern, which makes it possible to find the block boundaries with
reasonable certainty. Each block also carries its own 32-bit CRC, so
damaged blocks can be distinguished from undamaged ones.
.I bzip2recover
is a simple program whose purpose is to search for
blocks in .bz2 files, and write each block out into its own .bz2
file. You can then use
.I bzip2
\-t
to test the
integrity of the resulting files, and decompress those which are
undamaged.
.I bzip2recover
takes a single argument, the name of the damaged file,
and writes a number of files "rec00001file.bz2",
"rec00002file.bz2", etc, containing the extracted blocks.
The output filenames are designed so that the use of
wildcards in subsequent processing -- for example,
"bzip2 -dc rec*file.bz2 > recovered_data" -- processes the files in
the correct order.
.I bzip2recover
should be of most use dealing with large .bz2
files, as these will contain many blocks. It is clearly
futile to use it on damaged single-block files, since a
damaged block cannot be recovered. If you wish to minimise
any potential data loss through media or transmission errors,
you might consider compressing with a smaller
block size.
.SH PERFORMANCE NOTES
The sorting phase of compression gathers together similar strings in the
file. Because of this, files containing very long runs of repeated
symbols, like "aabaabaabaab ..." (repeated several hundred times) may
compress more slowly than normal. Versions 0.9.5 and above fare much
better than previous versions in this respect. The ratio between
worst-case and average-case compression time is in the region of 10:1.
For previous versions, this figure was more like 100:1. You can use the
\-vvvv option to monitor progress in great detail, if you want.
Decompression speed is unaffected by these phenomena.
.I bzip2
usually allocates several megabytes of memory to operate
in, and then charges all over it in a fairly random fashion. This means
that performance, both for compressing and decompressing, is largely
determined by the speed at which your machine can service cache misses.
Because of this, small changes to the code to reduce the miss rate have
been observed to give disproportionately large performance improvements.
I imagine
.I bzip2
will perform best on machines with very large caches.
.SH CAVEATS
I/O error messages are not as helpful as they could be.
.I bzip2
tries hard to detect I/O errors and exit cleanly, but the details of
what the problem is sometimes seem rather misleading.
This manual page pertains to version 1.0.3 of
.I bzip2.
Compressed data created by this version is entirely forwards and
backwards compatible with the previous public releases, versions
0.1pl2, 0.9.0, 0.9.5, 1.0.0, 1.0.1 and 1.0.2, but with the following
exception: 0.9.0 and above can correctly decompress multiple
concatenated compressed files. 0.1pl2 cannot do this; it will stop
after decompressing just the first file in the stream.
.I bzip2recover
versions prior to 1.0.2 used 32-bit integers to represent
bit positions in compressed files, so they could not handle compressed
files more than 512 megabytes long. Versions 1.0.2 and above use
64-bit ints on some platforms which support them (GNU supported
targets, and Windows). To establish whether or not bzip2recover was
built with such a limitation, run it without arguments. In any event
you can build yourself an unlimited version if you can recompile it
with MaybeUInt64 set to be an unsigned 64-bit integer.
.SH AUTHOR
Julian Seward, jsewardbzip.org.
http://www.bzip.org
The ideas embodied in
.I bzip2
are due to (at least) the following
people: Michael Burrows and David Wheeler (for the block sorting
transformation), David Wheeler (again, for the Huffman coder), Peter
Fenwick (for the structured coding model in the original
.I bzip,
and many refinements), and Alistair Moffat, Radford Neal and Ian Witten
(for the arithmetic coder in the original
.I bzip).
I am much
indebted for their help, support and advice. See the manual in the
source distribution for pointers to sources of documentation. Christian
von Roques encouraged me to look for faster sorting algorithms, so as to
speed up compression. Bela Lubkin encouraged me to improve the
worst-case compression performance.
Donna Robinson XMLised the documentation.
The bz* scripts are derived from those of GNU gzip.
Many people sent patches, helped
with portability problems, lent machines, gave advice and were generally
helpful.

399
commands/bzip2/bzip2.1.preformatted
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bzip2(1) bzip2(1)
NNAAMMEE
bzip2, bunzip2 − a block‐sorting file compressor, v1.0.3
bzcat − decompresses files to stdout
bzip2recover − recovers data from damaged bzip2 files
SSYYNNOOPPSSIISS
bbzziipp22 [ −−ccddffkkqqssttvvzzVVLL112233445566778899 ] [ _f_i_l_e_n_a_m_e_s _._._. ]
bbuunnzziipp22 [ −−ffkkvvssVVLL ] [ _f_i_l_e_n_a_m_e_s _._._. ]
bbzzccaatt [ −−ss ] [ _f_i_l_e_n_a_m_e_s _._._. ]
bbzziipp22rreeccoovveerr _f_i_l_e_n_a_m_e
DDEESSCCRRIIPPTTIIOONN
_b_z_i_p_2 compresses files using the Burrows‐Wheeler block
sorting text compression algorithm, and Huffman coding.
Compression is generally considerably better than that
achieved by more conventional LZ77/LZ78‐based compressors,
and approaches the performance of the PPM family of sta­
tistical compressors.
The command‐line options are deliberately very similar to
those of _G_N_U _g_z_i_p_, but they are not identical.
_b_z_i_p_2 expects a list of file names to accompany the com­
mand‐line flags. Each file is replaced by a compressed
version of itself, with the name "original_name.bz2".
Each compressed file has the same modification date, per­
missions, and, when possible, ownership as the correspond­
ing original, so that these properties can be correctly
restored at decompression time. File name handling is
naive in the sense that there is no mechanism for preserv­
ing original file names, permissions, ownerships or dates
in filesystems which lack these concepts, or have serious
file name length restrictions, such as MS‐DOS.
_b_z_i_p_2 and _b_u_n_z_i_p_2 will by default not overwrite existing
files. If you want this to happen, specify the −f flag.
If no file names are specified, _b_z_i_p_2 compresses from
standard input to standard output. In this case, _b_z_i_p_2
will decline to write compressed output to a terminal, as
this would be entirely incomprehensible and therefore
pointless.
_b_u_n_z_i_p_2 (or _b_z_i_p_2 _−_d_) decompresses all specified files.
Files which were not created by _b_z_i_p_2 will be detected and
ignored, and a warning issued. _b_z_i_p_2 attempts to guess
the filename for the decompressed file from that of the
compressed file as follows:
filename.bz2 becomes filename
filename.bz becomes filename
filename.tbz2 becomes filename.tar
filename.tbz becomes filename.tar
anyothername becomes anyothername.out
If the file does not end in one of the recognised endings,
_._b_z_2_, _._b_z_, _._t_b_z_2 or _._t_b_z_, _b_z_i_p_2 complains that it cannot
guess the name of the original file, and uses the original
name with _._o_u_t appended.
As with compression, supplying no filenames causes decom­
pression from standard input to standard output.
_b_u_n_z_i_p_2 will correctly decompress a file which is the con­
catenation of two or more compressed files. The result is
the concatenation of the corresponding uncompressed files.
Integrity testing (−t) of concatenated compressed files is
also supported.
You can also compress or decompress files to the standard
output by giving the −c flag. Multiple files may be com­
pressed and decompressed like this. The resulting outputs
are fed sequentially to stdout. Compression of multiple
files in this manner generates a stream containing multi­
ple compressed file representations. Such a stream can be
decompressed correctly only by _b_z_i_p_2 version 0.9.0 or
later. Earlier versions of _b_z_i_p_2 will stop after decom­
pressing the first file in the stream.
_b_z_c_a_t (or _b_z_i_p_2 _‐_d_c_) decompresses all specified files to
the standard output.
_b_z_i_p_2 will read arguments from the environment variables
_B_Z_I_P_2 and _B_Z_I_P_, in that order, and will process them
before any arguments read from the command line. This
gives a convenient way to supply default arguments.
Compression is always performed, even if the compressed
file is slightly larger than the original. Files of less
than about one hundred bytes tend to get larger, since the
compression mechanism has a constant overhead in the
region of 50 bytes. Random data (including the output of
most file compressors) is coded at about 8.05 bits per
byte, giving an expansion of around 0.5%.
As a self‐check for your protection, _b_z_i_p_2 uses 32‐bit
CRCs to make sure that the decompressed version of a file
is identical to the original. This guards against corrup­
tion of the compressed data, and against undetected bugs
in _b_z_i_p_2 (hopefully very unlikely). The chances of data
corruption going undetected is microscopic, about one
chance in four billion for each file processed. Be aware,
though, that the check occurs upon decompression, so it
can only tell you that something is wrong. It can’t help
you recover the original uncompressed data. You can use
_b_z_i_p_2_r_e_c_o_v_e_r to try to recover data from damaged files.
Return values: 0 for a normal exit, 1 for environmental
problems (file not found, invalid flags, I/O errors, &c),
2 to indicate a corrupt compressed file, 3 for an internal
consistency error (eg, bug) which caused _b_z_i_p_2 to panic.
OOPPTTIIOONNSS
−−cc ‐‐‐‐ssttddoouutt
Compress or decompress to standard output.
−−dd ‐‐‐‐ddeeccoommpprreessss
Force decompression. _b_z_i_p_2_, _b_u_n_z_i_p_2 and _b_z_c_a_t are
really the same program, and the decision about
what actions to take is done on the basis of which
name is used. This flag overrides that mechanism,
and forces _b_z_i_p_2 to decompress.
−−zz ‐‐‐‐ccoommpprreessss
The complement to −d: forces compression,
regardless of the invocation name.
−−tt ‐‐‐‐tteesstt
Check integrity of the specified file(s), but don’t
decompress them. This really performs a trial
decompression and throws away the result.
−−ff ‐‐‐‐ffoorrccee
Force overwrite of output files. Normally, _b_z_i_p_2
will not overwrite existing output files. Also
forces _b_z_i_p_2 to break hard links to files, which it
otherwise wouldn’t do.
bzip2 normally declines to decompress files which
don’t have the correct magic header bytes. If
forced (‐f), however, it will pass such files
through unmodified. This is how GNU gzip behaves.
−−kk ‐‐‐‐kkeeeepp
Keep (don’t delete) input files during compression
or decompression.
−−ss ‐‐‐‐ssmmaallll
Reduce memory usage, for compression, decompression
and testing. Files are decompressed and tested
using a modified algorithm which only requires 2.5
bytes per block byte. This means any file can be
decompressed in 2300k of memory, albeit at about
half the normal speed.
During compression, −s selects a block size of
200k, which limits memory use to around the same
figure, at the expense of your compression ratio.
In short, if your machine is low on memory (8
megabytes or less), use −s for everything. See
MEMORY MANAGEMENT below.
−−qq ‐‐‐‐qquuiieett
Suppress non‐essential warning messages. Messages
pertaining to I/O errors and other critical events
will not be suppressed.
−−vv ‐‐‐‐vveerrbboossee
Verbose mode ‐‐ show the compression ratio for each
file processed. Further −v’s increase the ver­
bosity level, spewing out lots of information which
is primarily of interest for diagnostic purposes.
−−LL ‐‐‐‐lliicceennssee ‐‐VV ‐‐‐‐vveerrssiioonn
Display the software version, license terms and
conditions.
−−11 ((oorr −−−−ffaasstt)) ttoo −−99 ((oorr −−−−bbeesstt))
Set the block size to 100 k, 200 k .. 900 k when
compressing. Has no effect when decompressing.
See MEMORY MANAGEMENT below. The −−fast and −−best
aliases are primarily for GNU gzip compatibility.
In particular, −−fast doesn’t make things signifi­
cantly faster. And −−best merely selects the
default behaviour.
−−‐‐ Treats all subsequent arguments as file names, even
if they start with a dash. This is so you can han­
dle files with names beginning with a dash, for
example: bzip2 −‐ −myfilename.
−−‐‐rreeppeettiittiivvee‐‐ffaasstt ‐‐‐‐rreeppeettiittiivvee‐‐bbeesstt
These flags are redundant in versions 0.9.5 and
above. They provided some coarse control over the
behaviour of the sorting algorithm in earlier ver­
sions, which was sometimes useful. 0.9.5 and above
have an improved algorithm which renders these
flags irrelevant.
MMEEMMOORRYY MMAANNAAGGEEMMEENNTT
_b_z_i_p_2 compresses large files in blocks. The block size
affects both the compression ratio achieved, and the
amount of memory needed for compression and decompression.
The flags −1 through −9 specify the block size to be
100,000 bytes through 900,000 bytes (the default) respec­
tively. At decompression time, the block size used for
compression is read from the header of the compressed
file, and _b_u_n_z_i_p_2 then allocates itself just enough memory
to decompress the file. Since block sizes are stored in
compressed files, it follows that the flags −1 to −9 are
irrelevant to and so ignored during decompression.
Compression and decompression requirements, in bytes, can
be estimated as:
Compression: 400k + ( 8 x block size )
Decompression: 100k + ( 4 x block size ), or
100k + ( 2.5 x block size )
Larger block sizes give rapidly diminishing marginal
returns. Most of the compression comes from the first two
or three hundred k of block size, a fact worth bearing in
mind when using _b_z_i_p_2 on small machines. It is also
important to appreciate that the decompression memory
requirement is set at compression time by the choice of
block size.
For files compressed with the default 900k block size,
_b_u_n_z_i_p_2 will require about 3700 kbytes to decompress. To
support decompression of any file on a 4 megabyte machine,
_b_u_n_z_i_p_2 has an option to decompress using approximately
half this amount of memory, about 2300 kbytes. Decompres­
sion speed is also halved, so you should use this option
only where necessary. The relevant flag is ‐s.
In general, try and use the largest block size memory con­
straints allow, since that maximises the compression
achieved. Compression and decompression speed are virtu­
ally unaffected by block size.
Another significant point applies to files which fit in a
single block ‐‐ that means most files you’d encounter
using a large block size. The amount of real memory
touched is proportional to the size of the file, since the
file is smaller than a block. For example, compressing a
file 20,000 bytes long with the flag ‐9 will cause the
compressor to allocate around 7600k of memory, but only
touch 400k + 20000 * 8 = 560 kbytes of it. Similarly, the
decompressor will allocate 3700k but only touch 100k +
20000 * 4 = 180 kbytes.
Here is a table which summarises the maximum memory usage
for different block sizes. Also recorded is the total
compressed size for 14 files of the Calgary Text Compres­
sion Corpus totalling 3,141,622 bytes. This column gives
some feel for how compression varies with block size.
These figures tend to understate the advantage of larger
block sizes for larger files, since the Corpus is domi­
nated by smaller files.
Compress Decompress Decompress Corpus
Flag usage usage ‐s usage Size
‐1 1200k 500k 350k 914704
‐2 2000k 900k 600k 877703
‐3 2800k 1300k 850k 860338
‐4 3600k 1700k 1100k 846899
‐5 4400k 2100k 1350k 845160
‐6 5200k 2500k 1600k 838626
‐7 6100k 2900k 1850k 834096
‐8 6800k 3300k 2100k 828642
‐9 7600k 3700k 2350k 828642
RREECCOOVVEERRIINNGG DDAATTAA FFRROOMM DDAAMMAAGGEEDD FFIILLEESS
_b_z_i_p_2 compresses files in blocks, usually 900kbytes long.
Each block is handled independently. If a media or trans­
mission error causes a multi‐block .bz2 file to become
damaged, it may be possible to recover data from the
undamaged blocks in the file.
The compressed representation of each block is delimited
by a 48‐bit pattern, which makes it possible to find the
block boundaries with reasonable certainty. Each block
also carries its own 32‐bit CRC, so damaged blocks can be
distinguished from undamaged ones.
_b_z_i_p_2_r_e_c_o_v_e_r is a simple program whose purpose is to
search for blocks in .bz2 files, and write each block out
into its own .bz2 file. You can then use _b_z_i_p_2 −t to test
the integrity of the resulting files, and decompress those
which are undamaged.
_b_z_i_p_2_r_e_c_o_v_e_r takes a single argument, the name of the dam­
aged file, and writes a number of files
"rec00001file.bz2", "rec00002file.bz2", etc, containing
the extracted blocks. The output filenames are
designed so that the use of wildcards in subsequent pro­
cessing ‐‐ for example, "bzip2 ‐dc rec*file.bz2 > recov­
ered_data" ‐‐ processes the files in the correct order.
_b_z_i_p_2_r_e_c_o_v_e_r should be of most use dealing with large .bz2
files, as these will contain many blocks. It is clearly
futile to use it on damaged single‐block files, since a
damaged block cannot be recovered. If you wish to min­
imise any potential data loss through media or transmis­
sion errors, you might consider compressing with a smaller
block size.
PPEERRFFOORRMMAANNCCEE NNOOTTEESS
The sorting phase of compression gathers together similar
strings in the file. Because of this, files containing
very long runs of repeated symbols, like "aabaabaabaab
..." (repeated several hundred times) may compress more
slowly than normal. Versions 0.9.5 and above fare much
better than previous versions in this respect. The ratio
between worst‐case and average‐case compression time is in
the region of 10:1. For previous versions, this figure
was more like 100:1. You can use the −vvvv option to mon­
itor progress in great detail, if you want.
Decompression speed is unaffected by these phenomena.
_b_z_i_p_2 usually allocates several megabytes of memory to
operate in, and then charges all over it in a fairly ran­
dom fashion. This means that performance, both for com­
pressing and decompressing, is largely determined by the
speed at which your machine can service cache misses.
Because of this, small changes to the code to reduce the
miss rate have been observed to give disproportionately
large performance improvements. I imagine _b_z_i_p_2 will per­
form best on machines with very large caches.
CCAAVVEEAATTSS
I/O error messages are not as helpful as they could be.
_b_z_i_p_2 tries hard to detect I/O errors and exit cleanly,
but the details of what the problem is sometimes seem
rather misleading.
This manual page pertains to version 1.0.3 of _b_z_i_p_2_. Com­
pressed data created by this version is entirely forwards
and backwards compatible with the previous public
releases, versions 0.1pl2, 0.9.0, 0.9.5, 1.0.0, 1.0.1 and
1.0.2, but with the following exception: 0.9.0 and above
can correctly decompress multiple concatenated compressed
files. 0.1pl2 cannot do this; it will stop after decom­
pressing just the first file in the stream.
_b_z_i_p_2_r_e_c_o_v_e_r versions prior to 1.0.2 used 32‐bit integers
to represent bit positions in compressed files, so they
could not handle compressed files more than 512 megabytes
long. Versions 1.0.2 and above use 64‐bit ints on some
platforms which support them (GNU supported targets, and
Windows). To establish whether or not bzip2recover was
built with such a limitation, run it without arguments.
In any event you can build yourself an unlimited version
if you can recompile it with MaybeUInt64 set to be an
unsigned 64‐bit integer.
AAUUTTHHOORR
Julian Seward, jsewardbzip.org.
http://www.bzip.org
The ideas embodied in _b_z_i_p_2 are due to (at least) the fol­
lowing people: Michael Burrows and David Wheeler (for the
block sorting transformation), David Wheeler (again, for
the Huffman coder), Peter Fenwick (for the structured cod­
ing model in the original _b_z_i_p_, and many refinements), and
Alistair Moffat, Radford Neal and Ian Witten (for the
arithmetic coder in the original _b_z_i_p_)_. I am much
indebted for their help, support and advice. See the man­
ual in the source distribution for pointers to sources of
documentation. Christian von Roques encouraged me to look
for faster sorting algorithms, so as to speed up compres­
sion. Bela Lubkin encouraged me to improve the worst‐case
compression performance. Donna Robinson XMLised the docu­
mentation. The bz* scripts are derived from those of GNU
gzip. Many people sent patches, helped with portability
problems, lent machines, gave advice and were generally
helpful.
bzip2(1)

391
commands/bzip2/bzip2.txt
View file

@ -1,391 +0,0 @@
NAME
bzip2, bunzip2 - a block-sorting file compressor, v1.0.3
bzcat - decompresses files to stdout
bzip2recover - recovers data from damaged bzip2 files
SYNOPSIS
bzip2 [ -cdfkqstvzVL123456789 ] [ filenames ... ]
bunzip2 [ -fkvsVL ] [ filenames ... ]
bzcat [ -s ] [ filenames ... ]
bzip2recover filename
DESCRIPTION
bzip2 compresses files using the Burrows-Wheeler block
sorting text compression algorithm, and Huffman coding.
Compression is generally considerably better than that
achieved by more conventional LZ77/LZ78-based compressors,
and approaches the performance of the PPM family of sta-
tistical compressors.
The command-line options are deliberately very similar to
those of GNU gzip, but they are not identical.
bzip2 expects a list of file names to accompany the com-
mand-line flags. Each file is replaced by a compressed
version of itself, with the name "original_name.bz2".
Each compressed file has the same modification date, per-
missions, and, when possible, ownership as the correspond-
ing original, so that these properties can be correctly
restored at decompression time. File name handling is
naive in the sense that there is no mechanism for preserv-
ing original file names, permissions, ownerships or dates
in filesystems which lack these concepts, or have serious
file name length restrictions, such as MS-DOS.
bzip2 and bunzip2 will by default not overwrite existing
files. If you want this to happen, specify the -f flag.
If no file names are specified, bzip2 compresses from
standard input to standard output. In this case, bzip2
will decline to write compressed output to a terminal, as
this would be entirely incomprehensible and therefore
pointless.
bunzip2 (or bzip2 -d) decompresses all specified files.
Files which were not created by bzip2 will be detected and
ignored, and a warning issued. bzip2 attempts to guess
the filename for the decompressed file from that of the
compressed file as follows:
filename.bz2 becomes filename
filename.bz becomes filename
filename.tbz2 becomes filename.tar
filename.tbz becomes filename.tar
anyothername becomes anyothername.out
If the file does not end in one of the recognised endings,
.bz2, .bz, .tbz2 or .tbz, bzip2 complains that it cannot
guess the name of the original file, and uses the original
name with .out appended.
As with compression, supplying no filenames causes decom-
pression from standard input to standard output.
bunzip2 will correctly decompress a file which is the con-
catenation of two or more compressed files. The result is
the concatenation of the corresponding uncompressed files.
Integrity testing (-t) of concatenated compressed files is
also supported.
You can also compress or decompress files to the standard
output by giving the -c flag. Multiple files may be com-
pressed and decompressed like this. The resulting outputs
are fed sequentially to stdout. Compression of multiple
files in this manner generates a stream containing multi-
ple compressed file representations. Such a stream can be
decompressed correctly only by bzip2 version 0.9.0 or
later. Earlier versions of bzip2 will stop after decom-
pressing the first file in the stream.
bzcat (or bzip2 -dc) decompresses all specified files to
the standard output.
bzip2 will read arguments from the environment variables
BZIP2 and BZIP, in that order, and will process them
before any arguments read from the command line. This
gives a convenient way to supply default arguments.
Compression is always performed, even if the compressed
file is slightly larger than the original. Files of less
than about one hundred bytes tend to get larger, since the
compression mechanism has a constant overhead in the
region of 50 bytes. Random data (including the output of
most file compressors) is coded at about 8.05 bits per
byte, giving an expansion of around 0.5%.
As a self-check for your protection, bzip2 uses 32-bit
CRCs to make sure that the decompressed version of a file
is identical to the original. This guards against corrup-
tion of the compressed data, and against undetected bugs
in bzip2 (hopefully very unlikely). The chances of data
corruption going undetected is microscopic, about one
chance in four billion for each file processed. Be aware,
though, that the check occurs upon decompression, so it
can only tell you that something is wrong. It can't help
you recover the original uncompressed data. You can use
bzip2recover to try to recover data from damaged files.
Return values: 0 for a normal exit, 1 for environmental
problems (file not found, invalid flags, I/O errors, &c),
2 to indicate a corrupt compressed file, 3 for an internal
consistency error (eg, bug) which caused bzip2 to panic.
OPTIONS
-c --stdout
Compress or decompress to standard output.
-d --decompress
Force decompression. bzip2, bunzip2 and bzcat are
really the same program, and the decision about
what actions to take is done on the basis of which
name is used. This flag overrides that mechanism,
and forces bzip2 to decompress.
-z --compress
The complement to -d: forces compression,
regardless of the invocation name.
-t --test
Check integrity of the specified file(s), but don't
decompress them. This really performs a trial
decompression and throws away the result.
-f --force
Force overwrite of output files. Normally, bzip2
will not overwrite existing output files. Also
forces bzip2 to break hard links to files, which it
otherwise wouldn't do.
bzip2 normally declines to decompress files which
don't have the correct magic header bytes. If
forced (-f), however, it will pass such files
through unmodified. This is how GNU gzip behaves.
-k --keep
Keep (don't delete) input files during compression
or decompression.
-s --small
Reduce memory usage, for compression, decompression
and testing. Files are decompressed and tested
using a modified algorithm which only requires 2.5
bytes per block byte. This means any file can be
decompressed in 2300k of memory, albeit at about
half the normal speed.
During compression, -s selects a block size of
200k, which limits memory use to around the same
figure, at the expense of your compression ratio.
In short, if your machine is low on memory (8
megabytes or less), use -s for everything. See
MEMORY MANAGEMENT below.
-q --quiet
Suppress non-essential warning messages. Messages
pertaining to I/O errors and other critical events
will not be suppressed.
-v --verbose
Verbose mode -- show the compression ratio for each
file processed. Further -v's increase the ver-
bosity level, spewing out lots of information which
is primarily of interest for diagnostic purposes.
-L --license -V --version
Display the software version, license terms and
conditions.
-1 (or --fast) to -9 (or --best)
Set the block size to 100 k, 200 k .. 900 k when
compressing. Has no effect when decompressing.
See MEMORY MANAGEMENT below. The --fast and --best
aliases are primarily for GNU gzip compatibility.
In particular, --fast doesn't make things signifi-
cantly faster. And --best merely selects the
default behaviour.
-- Treats all subsequent arguments as file names, even
if they start with a dash. This is so you can han-
dle files with names beginning with a dash, for
example: bzip2 -- -myfilename.
--repetitive-fast --repetitive-best
These flags are redundant in versions 0.9.5 and
above. They provided some coarse control over the
behaviour of the sorting algorithm in earlier ver-
sions, which was sometimes useful. 0.9.5 and above
have an improved algorithm which renders these
flags irrelevant.
MEMORY MANAGEMENT
bzip2 compresses large files in blocks. The block size
affects both the compression ratio achieved, and the
amount of memory needed for compression and decompression.
The flags -1 through -9 specify the block size to be
100,000 bytes through 900,000 bytes (the default) respec-
tively. At decompression time, the block size used for
compression is read from the header of the compressed
file, and bunzip2 then allocates itself just enough memory
to decompress the file. Since block sizes are stored in
compressed files, it follows that the flags -1 to -9 are
irrelevant to and so ignored during decompression.
Compression and decompression requirements, in bytes, can
be estimated as:
Compression: 400k + ( 8 x block size )
Decompression: 100k + ( 4 x block size ), or
100k + ( 2.5 x block size )
Larger block sizes give rapidly diminishing marginal
returns. Most of the compression comes from the first two
or three hundred k of block size, a fact worth bearing in
mind when using bzip2 on small machines. It is also
important to appreciate that the decompression memory
requirement is set at compression time by the choice of
block size.
For files compressed with the default 900k block size,
bunzip2 will require about 3700 kbytes to decompress. To
support decompression of any file on a 4 megabyte machine,
bunzip2 has an option to decompress using approximately
half this amount of memory, about 2300 kbytes. Decompres-
sion speed is also halved, so you should use this option
only where necessary. The relevant flag is -s.
In general, try and use the largest block size memory con-
straints allow, since that maximises the compression
achieved. Compression and decompression speed are virtu-
ally unaffected by block size.
Another significant point applies to files which fit in a
single block -- that means most files you'd encounter
using a large block size. The amount of real memory
touched is proportional to the size of the file, since the
file is smaller than a block. For example, compressing a
file 20,000 bytes long with the flag -9 will cause the
compressor to allocate around 7600k of memory, but only
touch 400k + 20000 * 8 = 560 kbytes of it. Similarly, the
decompressor will allocate 3700k but only touch 100k +
20000 * 4 = 180 kbytes.
Here is a table which summarises the maximum memory usage
for different block sizes. Also recorded is the total
compressed size for 14 files of the Calgary Text Compres-
sion Corpus totalling 3,141,622 bytes. This column gives
some feel for how compression varies with block size.
These figures tend to understate the advantage of larger
block sizes for larger files, since the Corpus is domi-
nated by smaller files.
Compress Decompress Decompress Corpus
Flag usage usage -s usage Size
-1 1200k 500k 350k 914704
-2 2000k 900k 600k 877703
-3 2800k 1300k 850k 860338
-4 3600k 1700k 1100k 846899
-5 4400k 2100k 1350k 845160
-6 5200k 2500k 1600k 838626
-7 6100k 2900k 1850k 834096
-8 6800k 3300k 2100k 828642
-9 7600k 3700k 2350k 828642
RECOVERING DATA FROM DAMAGED FILES
bzip2 compresses files in blocks, usually 900kbytes long.
Each block is handled independently. If a media or trans-
mission error causes a multi-block .bz2 file to become
damaged, it may be possible to recover data from the
undamaged blocks in the file.
The compressed representation of each block is delimited
by a 48-bit pattern, which makes it possible to find the
block boundaries with reasonable certainty. Each block
also carries its own 32-bit CRC, so damaged blocks can be
distinguished from undamaged ones.
bzip2recover is a simple program whose purpose is to
search for blocks in .bz2 files, and write each block out
into its own .bz2 file. You can then use bzip2 -t to test
the integrity of the resulting files, and decompress those
which are undamaged.
bzip2recover takes a single argument, the name of the dam-
aged file, and writes a number of files
"rec00001file.bz2", "rec00002file.bz2", etc, containing
the extracted blocks. The output filenames are
designed so that the use of wildcards in subsequent pro-
cessing -- for example, "bzip2 -dc rec*file.bz2 > recov-
ered_data" -- processes the files in the correct order.
bzip2recover should be of most use dealing with large .bz2
files, as these will contain many blocks. It is clearly
futile to use it on damaged single-block files, since a
damaged block cannot be recovered. If you wish to min-
imise any potential data loss through media or transmis-
sion errors, you might consider compressing with a smaller
block size.
PERFORMANCE NOTES
The sorting phase of compression gathers together similar
strings in the file. Because of this, files containing
very long runs of repeated symbols, like "aabaabaabaab
..." (repeated several hundred times) may compress more
slowly than normal. Versions 0.9.5 and above fare much
better than previous versions in this respect. The ratio
between worst-case and average-case compression time is in
the region of 10:1. For previous versions, this figure
was more like 100:1. You can use the -vvvv option to mon-
itor progress in great detail, if you want.
Decompression speed is unaffected by these phenomena.
bzip2 usually allocates several megabytes of memory to
operate in, and then charges all over it in a fairly ran-
dom fashion. This means that performance, both for com-
pressing and decompressing, is largely determined by the
speed at which your machine can service cache misses.
Because of this, small changes to the code to reduce the
miss rate have been observed to give disproportionately
large performance improvements. I imagine bzip2 will per-
form best on machines with very large caches.
CAVEATS
I/O error messages are not as helpful as they could be.
bzip2 tries hard to detect I/O errors and exit cleanly,
but the details of what the problem is sometimes seem
rather misleading.
This manual page pertains to version 1.0.3 of bzip2. Com-
pressed data created by this version is entirely forwards
and backwards compatible with the previous public
releases, versions 0.1pl2, 0.9.0, 0.9.5, 1.0.0, 1.0.1 and
1.0.2, but with the following exception: 0.9.0 and above
can correctly decompress multiple concatenated compressed
files. 0.1pl2 cannot do this; it will stop after decom-
pressing just the first file in the stream.
bzip2recover versions prior to 1.0.2 used 32-bit integers
to represent bit positions in compressed files, so they
could not handle compressed files more than 512 megabytes
long. Versions 1.0.2 and above use 64-bit ints on some
platforms which support them (GNU supported targets, and
Windows). To establish whether or not bzip2recover was
built with such a limitation, run it without arguments.
In any event you can build yourself an unlimited version
if you can recompile it with MaybeUInt64 set to be an
unsigned 64-bit integer.
AUTHOR
Julian Seward, jsewardbzip.org.
http://www.bzip.org
The ideas embodied in bzip2 are due to (at least) the fol-
lowing people: Michael Burrows and David Wheeler (for the
block sorting transformation), David Wheeler (again, for
the Huffman coder), Peter Fenwick (for the structured cod-
ing model in the original bzip, and many refinements), and
Alistair Moffat, Radford Neal and Ian Witten (for the
arithmetic coder in the original bzip). I am much
indebted for their help, support and advice. See the man-
ual in the source distribution for pointers to sources of
documentation. Christian von Roques encouraged me to look
for faster sorting algorithms, so as to speed up compres-
sion. Bela Lubkin encouraged me to improve the worst-case
compression performance. Donna Robinson XMLised the docu-
mentation. The bz* scripts are derived from those of GNU
gzip. Many people sent patches, helped with portability
problems, lent machines, gave advice and were generally
helpful.

16
commands/bzip2/mk251.c
View file

@ -1,16 +0,0 @@
/* Spew out a long sequence of the byte 251. When fed to bzip2
versions 1.0.0 or 1.0.1, causes it to die with internal error
1007 in blocksort.c. This assertion misses an extremely rare
case, which is fixed in this version (1.0.2) and above.
*/
#include <stdio.h>
int main ()
{
int i;
for (i = 0; i < 48500000 ; i++)
putchar(251);
return 0;
}

5
commands/bzip2/words0
View file

@ -1,5 +0,0 @@
If compilation produces errors, or a large number of warnings,
please read README.COMPILATION.PROBLEMS -- you might be able to
adjust the flags in this Makefile to improve matters.

11
commands/bzip2recover/Makefile
View file

@ -1,11 +0,0 @@
NOMAN=
.include <bsd.own.mk>
PROG= bzip2recover
CPPFLAGS+= -I ${BZ2DIR}
BZ2DIR= ${MINIXSRCDIR}/commands/bzip2
.PATH: ${BZ2DIR}
.include <bsd.prog.mk>

2
commands/tar/Makefile
View file

@ -1,3 +1,5 @@
NEED_NBSDLIBC= yes
.include <bsd.own.mk> .include <bsd.own.mk>
PROG= bsdtar PROG= bsdtar

4
commands/tar/bsdtar.c
View file

@ -81,6 +81,10 @@ __FBSDID("$FreeBSD: src/usr.bin/tar/bsdtar.c,v 1.93 2008/11/08 04:43:24 kientzle
#define _PATH_DEFTAPE "\\\\.\\tape0" #define _PATH_DEFTAPE "\\\\.\\tape0"
#endif #endif
#ifdef _PATH_DEFTAPE
#undef _PATH_DEFTAPE
#endif
#ifndef _PATH_DEFTAPE #ifndef _PATH_DEFTAPE
#define _PATH_DEFTAPE "/dev/tape" #define _PATH_DEFTAPE "/dev/tape"
#endif #endif

46
commands/bzip2/CHANGES → dist/bzip2/CHANGES vendored
View file

@ -1,3 +1,16 @@
------------------------------------------------------------------
This file is part of bzip2/libbzip2, a program and library for
lossless, block-sorting data compression.
bzip2/libbzip2 version 1.0.5 of 10 December 2007
Copyright (C) 1996-2007 Julian Seward <jseward@bzip.org>
Please read the WARNING, DISCLAIMER and PATENTS sections in the
README file.
This program is released under the terms of the license contained
in the file LICENSE.
------------------------------------------------------------------
0.9.0 0.9.0
@ -261,7 +274,7 @@ Fixes some minor bugs since the last version, 1.0.2.
decompressor to crash, loop or access memory which does not decompressor to crash, loop or access memory which does not
belong to it. If you are using bzip2 or the library to belong to it. If you are using bzip2 or the library to
decompress bitstreams from untrusted sources, an upgrade decompress bitstreams from untrusted sources, an upgrade
to 1.0.3 is recommended. to 1.0.3 is recommended. This fixes CAN-2005-1260.
* The documentation has been converted to XML, from which html * The documentation has been converted to XML, from which html
and pdf can be derived. and pdf can be derived.
@ -273,3 +286,34 @@ Fixes some minor bugs since the last version, 1.0.2.
* The BZ_NO_STDIO cpp symbol was not properly observed in 1.0.2. * The BZ_NO_STDIO cpp symbol was not properly observed in 1.0.2.
This has been fixed. This has been fixed.
1.0.4 (20 Dec 06)
~~~~~~~~~~~~~~~~~
Fixes some minor bugs since the last version, 1.0.3.
* Fix file permissions race problem (CAN-2005-0953).
* Avoid possible segfault in BZ2_bzclose. From Coverity's NetBSD
scan.
* 'const'/prototype cleanups in the C code.
* Change default install location to /usr/local, and handle multiple
'make install's without error.
* Sanitise file names more carefully in bzgrep. Fixes CAN-2005-0758
to the extent that applies to bzgrep.
* Use 'mktemp' rather than 'tempfile' in bzdiff.
* Tighten up a couple of assertions in blocksort.c following automated
analysis.
* Fix minor doc/comment bugs.
1.0.5 (10 Dec 07)
~~~~~~~~~~~~~~~~~
Security fix only. Fixes CERT-FI 20469 as it applies to bzip2.

10
commands/bzip2/LICENSE → dist/bzip2/LICENSE vendored
View file

@ -1,6 +1,8 @@
--------------------------------------------------------------------------
This program, "bzip2", the associated library "libbzip2", and all This program, "bzip2", the associated library "libbzip2", and all
documentation, are copyright (C) 1996-2005 Julian R Seward. All documentation, are copyright (C) 1996-2007 Julian R Seward. All
rights reserved. rights reserved.
Redistribution and use in source and binary forms, with or without Redistribution and use in source and binary forms, with or without
@ -34,7 +36,7 @@ WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
Julian Seward, Cambridge, UK. Julian Seward, jseward@bzip.org
jseward@acm.org bzip2/libbzip2 version 1.0.5 of 10 December 2007
bzip2/libbzip2 version 1.0.3 of 15 February 2005
--------------------------------------------------------------------------

115
commands/bzip2/Makefile.orig → dist/bzip2/Makefile vendored
View file

@ -1,22 +1,30 @@
# ------------------------------------------------------------------
# This file is part of bzip2/libbzip2, a program and library for
# lossless, block-sorting data compression.
#
# bzip2/libbzip2 version 1.0.5 of 10 December 2007
# Copyright (C) 1996-2007 Julian Seward <jseward@bzip.org>
#
# Please read the WARNING, DISCLAIMER and PATENTS sections in the
# README file.
#
# This program is released under the terms of the license contained
# in the file LICENSE.
# ------------------------------------------------------------------
SHELL=/bin/sh SHELL=/bin/sh
# To assist in cross-compiling # To assist in cross-compiling
CC=exec cc CC=clang
AR=ar AR=ar
ARFLAGS=cr
RANLIB=ranlib RANLIB=ranlib
LDFLAGS= LDFLAGS=
BIGFILES=#-D_FILE_OFFSET_BITS=64 BIGFILES=-D_FILE_OFFSET_BITS=64
CFLAGS=-Wall -Winline -O -g $(BIGFILES) -Dlstat=stat -D_POSIX_SOURCE=1 CFLAGS=-Wall -Winline -O2 -g $(BIGFILES)
# Where you want it installed when you do 'make install' # Where you want it installed when you do 'make install'
PREFIX=/usr PREFIX=/usr
PREFIX_BIN=$(PREFIX)/bin
PREFIX_LIB=$(PREFIX)/lib
PREFIX_MAN=$(PREFIX)/man
PREFIX_INC=$(PREFIX)/include
OBJS= blocksort.o \ OBJS= blocksort.o \
@ -27,10 +35,7 @@ OBJS= blocksort.o \
decompress.o \ decompress.o \
bzlib.o bzlib.o
all: all_notest all: libbz2.a bzip2 bzip2recover test
all_notest: libbz2.a bzip2 bzip2recover
chmem =8000000 bzip2
bzip2: libbz2.a bzip2.o bzip2: libbz2.a bzip2.o
$(CC) $(CFLAGS) $(LDFLAGS) -o bzip2 bzip2.o -L. -lbz2 $(CC) $(CFLAGS) $(LDFLAGS) -o bzip2 bzip2.o -L. -lbz2
@ -40,7 +45,7 @@ bzip2recover: bzip2recover.o
libbz2.a: $(OBJS) libbz2.a: $(OBJS)
rm -f libbz2.a rm -f libbz2.a
$(AR) $(ARFLAGS) libbz2.a $(OBJS) $(AR) cq libbz2.a $(OBJS)
@if ( test -f $(RANLIB) -o -f /usr/bin/ranlib -o \ @if ( test -f $(RANLIB) -o -f /usr/bin/ranlib -o \
-f /bin/ranlib -o -f /usr/ccs/bin/ranlib ) ; then \ -f /bin/ranlib -o -f /usr/ccs/bin/ranlib ) ; then \
echo $(RANLIB) libbz2.a ; \ echo $(RANLIB) libbz2.a ; \
@ -48,9 +53,7 @@ libbz2.a: $(OBJS)
fi fi
check: test check: test
test: bzip2 test_nodep test: bzip2
test_nodep:
@cat words1 @cat words1
./bzip2 -1 < sample1.ref > sample1.rb2 ./bzip2 -1 < sample1.ref > sample1.rb2
./bzip2 -2 < sample2.ref > sample2.rb2 ./bzip2 -2 < sample2.ref > sample2.rb2
@ -67,44 +70,43 @@ test_nodep:
@cat words3 @cat words3
install: bzip2 bzip2recover install: bzip2 bzip2recover
if ( test ! -d $(PREFIX_BIN) ) ; then mkdir -p $(PREFIX_BIN) ; fi if ( test ! -d $(PREFIX)/bin ) ; then mkdir -p $(PREFIX)/bin ; fi
if ( test ! -d $(PREFIX_LIB) ) ; then mkdir -p $(PREFIX_LIB) ; fi if ( test ! -d $(PREFIX)/lib ) ; then mkdir -p $(PREFIX)/lib ; fi
if ( test ! -d $(PREFIX_MAN) ) ; then mkdir -p $(PREFIX_MAN) ; fi if ( test ! -d $(PREFIX)/man ) ; then mkdir -p $(PREFIX)/man ; fi
if ( test ! -d $(PREFIX_MAN)/man1 ) ; then mkdir -p $(PREFIX_MAN)/man1 ; fi if ( test ! -d $(PREFIX)/man/man1 ) ; then mkdir -p $(PREFIX)/man/man1 ; fi
if ( test ! -d $(PREFIX_INC) ) ; then mkdir -p $(PREFIX_INC) ; fi if ( test ! -d $(PREFIX)/include ) ; then mkdir -p $(PREFIX)/include ; fi
install -S 8M -o bin bzip2 $(PREFIX_BIN)/bzip2 cp -f bzip2 $(PREFIX)/bin/bzip2
install -S 4M -o bin bzip2 $(PREFIX_BIN)/bunzip2 cp -f bzip2 $(PREFIX)/bin/bunzip2
install -S 2450k -o bin bzip2 $(PREFIX_BIN)/smallbunzip2 cp -f bzip2 $(PREFIX)/bin/bzcat
install -o bin bzip2 $(PREFIX_BIN)/bzcat cp -f bzip2recover $(PREFIX)/bin/bzip2recover
install -o bin bzip2recover $(PREFIX_BIN)/bzip2recover chmod a+x $(PREFIX)/bin/bzip2
chmod a+x $(PREFIX_BIN)/bzip2 chmod a+x $(PREFIX)/bin/bunzip2
chmod a+x $(PREFIX_BIN)/bunzip2 chmod a+x $(PREFIX)/bin/bzcat
chmod a+x $(PREFIX_BIN)/bzcat chmod a+x $(PREFIX)/bin/bzip2recover
chmod a+x $(PREFIX_BIN)/bzip2recover cp -f bzip2.1 $(PREFIX)/man/man1
install -o bin bzip2.1 $(PREFIX_MAN)/man1 chmod a+r $(PREFIX)/man/man1/bzip2.1
chmod a+r $(PREFIX_MAN)/man1/bzip2.1 cp -f bzlib.h $(PREFIX)/include
install -o bin bzlib.h $(PREFIX_INC) chmod a+r $(PREFIX)/include/bzlib.h
chmod a+r $(PREFIX_INC)/bzlib.h cp -f libbz2.a $(PREFIX)/lib
install -o bin libbz2.a $(PREFIX_LIB) chmod a+r $(PREFIX)/lib/libbz2.a
chmod a+r $(PREFIX_LIB)/libbz2.a cp -f bzgrep $(PREFIX)/bin/bzgrep
install -o bin bzgrep $(PREFIX_BIN)/bzgrep ln -s -f $(PREFIX)/bin/bzgrep $(PREFIX)/bin/bzegrep
ln -f $(PREFIX_BIN)/bzgrep $(PREFIX_BIN)/bzegrep ln -s -f $(PREFIX)/bin/bzgrep $(PREFIX)/bin/bzfgrep
ln -f $(PREFIX_BIN)/bzgrep $(PREFIX_BIN)/bzfgrep chmod a+x $(PREFIX)/bin/bzgrep
chmod a+x $(PREFIX_BIN)/bzgrep cp -f bzmore $(PREFIX)/bin/bzmore
install -o bin bzmore $(PREFIX_BIN)/bzmore ln -s -f $(PREFIX)/bin/bzmore $(PREFIX)/bin/bzless
ln -f $(PREFIX_BIN)/bzmore $(PREFIX_BIN)/bzless chmod a+x $(PREFIX)/bin/bzmore
chmod a+x $(PREFIX_BIN)/bzmore cp -f bzdiff $(PREFIX)/bin/bzdiff
install -o bin bzdiff $(PREFIX_BIN)/bzdiff ln -s -f $(PREFIX)/bin/bzdiff $(PREFIX)/bin/bzcmp
ln -f $(PREFIX_BIN)/bzdiff $(PREFIX_BIN)/bzcmp chmod a+x $(PREFIX)/bin/bzdiff
chmod a+x $(PREFIX_BIN)/bzdiff cp -f bzgrep.1 bzmore.1 bzdiff.1 $(PREFIX)/man/man1
install -o bin bzgrep.1 bzmore.1 bzdiff.1 $(PREFIX_MAN)/man1 chmod a+r $(PREFIX)/man/man1/bzgrep.1
chmod a+r $(PREFIX_MAN)/man1/bzgrep.1 chmod a+r $(PREFIX)/man/man1/bzmore.1
chmod a+r $(PREFIX_MAN)/man1/bzmore.1 chmod a+r $(PREFIX)/man/man1/bzdiff.1
chmod a+r $(PREFIX_MAN)/man1/bzdiff.1 echo ".so man1/bzgrep.1" > $(PREFIX)/man/man1/bzegrep.1
echo ".so man1/bzgrep.1" > $(PREFIX_MAN)/man1/bzegrep.1 echo ".so man1/bzgrep.1" > $(PREFIX)/man/man1/bzfgrep.1
echo ".so man1/bzgrep.1" > $(PREFIX_MAN)/man1/bzfgrep.1 echo ".so man1/bzmore.1" > $(PREFIX)/man/man1/bzless.1
echo ".so man1/bzmore.1" > $(PREFIX_MAN)/man1/bzless.1 echo ".so man1/bzdiff.1" > $(PREFIX)/man/man1/bzcmp.1
echo ".so man1/bzdiff.1" > $(PREFIX_MAN)/man1/bzcmp.1
clean: clean:
rm -f *.o libbz2.a bzip2 bzip2recover \ rm -f *.o libbz2.a bzip2 bzip2recover \
@ -135,10 +137,10 @@ bzip2recover.o: bzip2recover.c
distclean: clean distclean: clean
rm -f manual.ps manual.html manual.pdf rm -f manual.ps manual.html manual.pdf
DISTNAME=bzip2-1.0.3 DISTNAME=bzip2-1.0.5
dist: check manual dist: check manual
rm -f $(DISTNAME) rm -f $(DISTNAME)
ln -sf . $(DISTNAME) ln -s -f . $(DISTNAME)
tar cvf $(DISTNAME).tar \ tar cvf $(DISTNAME).tar \
$(DISTNAME)/blocksort.c \ $(DISTNAME)/blocksort.c \
$(DISTNAME)/huffman.c \ $(DISTNAME)/huffman.c \
@ -178,7 +180,6 @@ dist: check manual
$(DISTNAME)/libbz2.dsp \ $(DISTNAME)/libbz2.dsp \
$(DISTNAME)/dlltest.dsp \ $(DISTNAME)/dlltest.dsp \
$(DISTNAME)/makefile.msc \ $(DISTNAME)/makefile.msc \
$(DISTNAME)/Y2K_INFO \
$(DISTNAME)/unzcrash.c \ $(DISTNAME)/unzcrash.c \
$(DISTNAME)/spewG.c \ $(DISTNAME)/spewG.c \
$(DISTNAME)/mk251.c \ $(DISTNAME)/mk251.c \

59
dist/bzip2/Makefile-libbz2_so vendored Normal file
View file

@ -0,0 +1,59 @@
# This Makefile builds a shared version of the library,
# libbz2.so.1.0.4, with soname libbz2.so.1.0,
# at least on x86-Linux (RedHat 7.2),
# with gcc-2.96 20000731 (Red Hat Linux 7.1 2.96-98).
# Please see the README file for some important info
# about building the library like this.
# ------------------------------------------------------------------
# This file is part of bzip2/libbzip2, a program and library for
# lossless, block-sorting data compression.
#
# bzip2/libbzip2 version 1.0.5 of 10 December 2007
# Copyright (C) 1996-2007 Julian Seward <jseward@bzip.org>
#
# Please read the WARNING, DISCLAIMER and PATENTS sections in the
# README file.
#
# This program is released under the terms of the license contained
# in the file LICENSE.
# ------------------------------------------------------------------
SHELL=/bin/sh
CC=gcc
BIGFILES=-D_FILE_OFFSET_BITS=64
CFLAGS=-fpic -fPIC -Wall -Winline -O2 -g $(BIGFILES)
OBJS= blocksort.o \
huffman.o \
crctable.o \
randtable.o \
compress.o \
decompress.o \
bzlib.o
all: $(OBJS)
$(CC) -shared -Wl,-soname -Wl,libbz2.so.1.0 -o libbz2.so.1.0.4 $(OBJS)
$(CC) $(CFLAGS) -o bzip2-shared bzip2.c libbz2.so.1.0.4
rm -f libbz2.so.1.0
ln -s libbz2.so.1.0.4 libbz2.so.1.0
clean:
rm -f $(OBJS) bzip2.o libbz2.so.1.0.4 libbz2.so.1.0 bzip2-shared
blocksort.o: blocksort.c
$(CC) $(CFLAGS) -c blocksort.c
huffman.o: huffman.c
$(CC) $(CFLAGS) -c huffman.c
crctable.o: crctable.c
$(CC) $(CFLAGS) -c crctable.c
randtable.o: randtable.c
$(CC) $(CFLAGS) -c randtable.c
compress.o: compress.c
$(CC) $(CFLAGS) -c compress.c
decompress.o: decompress.c
$(CC) $(CFLAGS) -c decompress.c
bzlib.o: bzlib.c
$(CC) $(CFLAGS) -c bzlib.c

105
commands/bzip2/README → dist/bzip2/README vendored
View file

@ -1,33 +1,48 @@
This is the README for bzip2, a block-sorting file compressor, version This is the README for bzip2/libzip2.
1.0.3. This version is fully compatible with the previous public This version is fully compatible with the previous public releases.
releases, versions 0.1pl2, 0.9.0, 0.9.5, 1.0.0, 1.0.1 and 1.0.2.
bzip2-1.0.3 is distributed under a BSD-style license. For details, ------------------------------------------------------------------
see the file LICENSE. This file is part of bzip2/libbzip2, a program and library for
lossless, block-sorting data compression.
bzip2/libbzip2 version 1.0.5 of 10 December 2007
Copyright (C) 1996-2007 Julian Seward <jseward@bzip.org>
Please read the WARNING, DISCLAIMER and PATENTS sections in this file.
This program is released under the terms of the license contained
in the file LICENSE.
------------------------------------------------------------------
Complete documentation is available in Postscript form (manual.ps), Complete documentation is available in Postscript form (manual.ps),
PDF (manual.pdf) or html (manual.html). A plain-text version of the PDF (manual.pdf) or html (manual.html). A plain-text version of the
manual page is available as bzip2.txt. A statement about Y2K issues manual page is available as bzip2.txt.
is now included in the file Y2K_INFO.
HOW TO BUILD -- UNIX HOW TO BUILD -- UNIX
Type `make'. This builds the library libbz2.a and then the Type 'make'. This builds the library libbz2.a and then the programs
programs bzip2 and bzip2recover. Six self-tests are run. bzip2 and bzip2recover. Six self-tests are run. If the self-tests
If the self-tests complete ok, carry on to installation: complete ok, carry on to installation:
To install in /usr/local/bin, /usr/local/lib, /usr/local/man and
/usr/local/include, type
To install in /usr/bin, /usr/lib, /usr/man and /usr/include, type
make install make install
To install somewhere else, eg, /xxx/yyy/{bin,lib,man,include}, type
To install somewhere else, eg, /xxx/yyy/{bin,lib,man,include}, type
make install PREFIX=/xxx/yyy make install PREFIX=/xxx/yyy
If you are (justifiably) paranoid and want to see what 'make install' If you are (justifiably) paranoid and want to see what 'make install'
is going to do, you can first do is going to do, you can first do
make -n install or make -n install or
make -n install PREFIX=/xxx/yyy respectively. make -n install PREFIX=/xxx/yyy respectively.
The -n instructs make to show the commands it would execute, but
not actually execute them. The -n instructs make to show the commands it would execute, but not
actually execute them.
HOW TO BUILD -- UNIX, shared library libbz2.so. HOW TO BUILD -- UNIX, shared library libbz2.so.
@ -49,23 +64,25 @@ Important note for people upgrading .so's from 0.9.0/0.9.5 to version
bzCompress to BZ2_bzCompress, to avoid namespace pollution. bzCompress to BZ2_bzCompress, to avoid namespace pollution.
Unfortunately this means that the libbz2.so created by Unfortunately this means that the libbz2.so created by
Makefile-libbz2_so will not work with any program which used an older Makefile-libbz2_so will not work with any program which used an older
version of the library. Sorry. I do encourage library clients to version of the library. I do encourage library clients to make the
make the effort to upgrade to use version 1.0, since it is both faster effort to upgrade to use version 1.0, since it is both faster and more
and more robust than previous versions. robust than previous versions.
HOW TO BUILD -- Windows 95, NT, DOS, Mac, etc. HOW TO BUILD -- Windows 95, NT, DOS, Mac, etc.
It's difficult for me to support compilation on all these platforms. It's difficult for me to support compilation on all these platforms.
My approach is to collect binaries for these platforms, and put them My approach is to collect binaries for these platforms, and put them
on the master web page (http://sources.redhat.com/bzip2). Look there. on the master web site (http://www.bzip.org). Look there. However
However (FWIW), bzip2-1.0.X is very standard ANSI C and should compile (FWIW), bzip2-1.0.X is very standard ANSI C and should compile
unmodified with MS Visual C. If you have difficulties building, you unmodified with MS Visual C. If you have difficulties building, you
might want to read README.COMPILATION.PROBLEMS. might want to read README.COMPILATION.PROBLEMS.
At least using MS Visual C++ 6, you can build from the unmodified At least using MS Visual C++ 6, you can build from the unmodified
sources by issuing, in a command shell: sources by issuing, in a command shell:
nmake -f makefile.msc nmake -f makefile.msc
(you may need to first run the MSVC-provided script VCVARS32.BAT (you may need to first run the MSVC-provided script VCVARS32.BAT
so as to set up paths to the MSVC tools correctly). so as to set up paths to the MSVC tools correctly).
@ -86,18 +103,19 @@ Please read and be aware of the following:
WARNING: WARNING:
This program (attempts to) compress data by performing several This program and library (attempts to) compress data by
non-trivial transformations on it. Unless you are 100% familiar performing several non-trivial transformations on it.
with *all* the algorithms contained herein, and with the Unless you are 100% familiar with *all* the algorithms
consequences of modifying them, you should NOT meddle with the contained herein, and with the consequences of modifying them,
compression or decompression machinery. Incorrect changes can and you should NOT meddle with the compression or decompression
very likely *will* lead to disastrous loss of data. machinery. Incorrect changes can and very likely *will*
lead to disastrous loss of data.
DISCLAIMER: DISCLAIMER:
I TAKE NO RESPONSIBILITY FOR ANY LOSS OF DATA ARISING FROM THE I TAKE NO RESPONSIBILITY FOR ANY LOSS OF DATA ARISING FROM THE
USE OF THIS PROGRAM, HOWSOEVER CAUSED. USE OF THIS PROGRAM/LIBRARY, HOWSOEVER CAUSED.
Every compression of a file implies an assumption that the Every compression of a file implies an assumption that the
compressed file can be decompressed to reproduce the original. compressed file can be decompressed to reproduce the original.
@ -110,19 +128,18 @@ DISCLAIMER:
PROGRAM UNLESS YOU ARE PREPARED TO ACCEPT THE POSSIBILITY, HOWEVER PROGRAM UNLESS YOU ARE PREPARED TO ACCEPT THE POSSIBILITY, HOWEVER
SMALL, THAT THE DATA WILL NOT BE RECOVERABLE. SMALL, THAT THE DATA WILL NOT BE RECOVERABLE.
That is not to say this program is inherently unreliable. Indeed, That is not to say this program is inherently unreliable.
I very much hope the opposite is true. bzip2 has been carefully Indeed, I very much hope the opposite is true. bzip2/libbzip2
constructed and extensively tested. has been carefully constructed and extensively tested.
PATENTS: PATENTS:
To the best of my knowledge, bzip2 does not use any patented To the best of my knowledge, bzip2/libbzip2 does not use any
algorithms. However, I do not have the resources to carry out patented algorithms. However, I do not have the resources
a patent search. Therefore I cannot give any guarantee of the to carry out a patent search. Therefore I cannot give any
above statement. guarantee of the above statement.
End of legalities.
WHAT'S NEW IN 0.9.0 (as compared to 0.1pl2) ? WHAT'S NEW IN 0.9.0 (as compared to 0.1pl2) ?
@ -156,21 +173,27 @@ WHAT'S NEW IN 1.0.3 ?
See the CHANGES file. See the CHANGES file.
WHAT'S NEW IN 1.0.4 ?
See the CHANGES file.
WHAT'S NEW IN 1.0.5 ?
See the CHANGES file.
I hope you find bzip2 useful. Feel free to contact me at I hope you find bzip2 useful. Feel free to contact me at
jseward@bzip.org jseward@bzip.org
if you have any suggestions or queries. Many people mailed me with if you have any suggestions or queries. Many people mailed me with
comments, suggestions and patches after the releases of bzip-0.15, comments, suggestions and patches after the releases of bzip-0.15,
bzip-0.21, and bzip2 versions 0.1pl2, 0.9.0, 0.9.5, 1.0.0, 1.0.1 and bzip-0.21, and bzip2 versions 0.1pl2, 0.9.0, 0.9.5, 1.0.0, 1.0.1,
1.0.2, and the changes in bzip2 are largely a result of this feedback. 1.0.2 and 1.0.3, and the changes in bzip2 are largely a result of this
I thank you for your comments. feedback. I thank you for your comments.
At least for the time being, bzip2's "home" is (or can be reached via) bzip2's "home" is http://www.bzip.org/
http://www.bzip.org
Julian Seward Julian Seward
jseward@bzip.org jseward@bzip.org
Cambridge, UK. Cambridge, UK.
18 July 1996 (version 0.15) 18 July 1996 (version 0.15)
@ -183,3 +206,5 @@ Cambridge, UK.
5 May 2000 (bzip2, version 1.0pre8) 5 May 2000 (bzip2, version 1.0pre8)
30 December 2001 (bzip2, version 1.0.2pre1) 30 December 2001 (bzip2, version 1.0.2pre1)
15 February 2005 (bzip2, version 1.0.3) 15 February 2005 (bzip2, version 1.0.3)
20 December 2006 (bzip2, version 1.0.4)
10 December 2007 (bzip2, version 1.0.5)

37
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View file

@ -1,32 +1,47 @@
------------------------------------------------------------------
This file is part of bzip2/libbzip2, a program and library for
lossless, block-sorting data compression.
bzip2-1.0.3 should compile without problems on the vast majority of bzip2/libbzip2 version 1.0.5 of 10 December 2007
Copyright (C) 1996-2007 Julian Seward <jseward@bzip.org>
Please read the WARNING, DISCLAIMER and PATENTS sections in the
README file.
This program is released under the terms of the license contained
in the file LICENSE.
------------------------------------------------------------------
bzip2-1.0.5 should compile without problems on the vast majority of
platforms. Using the supplied Makefile, I've built and tested it platforms. Using the supplied Makefile, I've built and tested it
myself for x86-linux and x86_64-linux. With makefile.msc, Visual C++ myself for x86-linux and amd64-linux. With makefile.msc, Visual C++
6.0 and nmake, you can build a native Win32 version too. Large file 6.0 and nmake, you can build a native Win32 version too. Large file
support seems to work correctly on at least alpha-tru64unix and support seems to work correctly on at least on amd64-linux.
x86-cygwin32 (on Windows 2000).
When I say "large file" I mean a file of size 2,147,483,648 (2^31) When I say "large file" I mean a file of size 2,147,483,648 (2^31)
bytes or above. Many older OSs can't handle files above this size, bytes or above. Many older OSs can't handle files above this size,
but many newer ones can. Large files are pretty huge -- most files but many newer ones can. Large files are pretty huge -- most files
you'll encounter are not Large Files. you'll encounter are not Large Files.
Earlier versions of bzip2 (0.1, 0.9.0, 0.9.5) compiled on a wide Early versions of bzip2 (0.1, 0.9.0, 0.9.5) compiled on a wide variety
variety of platforms without difficulty, and I hope this version will of platforms without difficulty, and I hope this version will continue
continue in that tradition. However, in order to support large files, in that tradition. However, in order to support large files, I've had
I've had to include the define -D_FILE_OFFSET_BITS=64 in the Makefile. to include the define -D_FILE_OFFSET_BITS=64 in the Makefile. This
This can cause problems. can cause problems.
The technique of adding -D_FILE_OFFSET_BITS=64 to get large file The technique of adding -D_FILE_OFFSET_BITS=64 to get large file
support is, as far as I know, the Recommended Way to get correct large support is, as far as I know, the Recommended Way to get correct large
file support. For more details, see the Large File Support file support. For more details, see the Large File Support
Specification, published by the Large File Summit, at Specification, published by the Large File Summit, at
http://ftp.sas.com/standards/large.file http://ftp.sas.com/standards/large.file
As a general comment, if you get compilation errors which you think As a general comment, if you get compilation errors which you think
are related to large file support, try removing the above define from are related to large file support, try removing the above define from
the Makefile, ie, delete the line the Makefile, ie, delete the line
BIGFILES=-D_FILE_OFFSET_BITS=64 BIGFILES=-D_FILE_OFFSET_BITS=64
from the Makefile, and do 'make clean ; make'. This will give you a from the Makefile, and do 'make clean ; make'. This will give you a
version of bzip2 without large file support, which, for most version of bzip2 without large file support, which, for most
applications, is probably not a problem. applications, is probably not a problem.
@ -37,3 +52,7 @@ You can use the spewG.c program to generate huge files to test bzip2's
large file support, if you are feeling paranoid. Be aware though that large file support, if you are feeling paranoid. Be aware though that
any compilation problems which affect bzip2 will also affect spewG.c, any compilation problems which affect bzip2 will also affect spewG.c,
alas. alas.
AIX: I have reports that for large file support, you need to specify
-D_LARGE_FILES rather than -D_FILE_OFFSET_BITS=64. I have not tested
this myself.

22
commands/bzip2/README.XML.STUFF → dist/bzip2/README.XML.STUFF vendored
View file

@ -1,3 +1,17 @@
----------------------------------------------------------------
This file is part of bzip2/libbzip2, a program and library for
lossless, block-sorting data compression.
bzip2/libbzip2 version 1.0.5 of 10 December 2007
Copyright (C) 1996-2007 Julian Seward <jseward@bzip.org>
Please read the WARNING, DISCLAIMER and PATENTS sections in the
README file.
This program is released under the terms of the license contained
in the file LICENSE.
----------------------------------------------------------------
The script xmlproc.sh takes an xml file as input, The script xmlproc.sh takes an xml file as input,
and processes it to create .pdf, .html or .ps output. and processes it to create .pdf, .html or .ps output.
It uses format.pl, a perl script to format <pre> blocks nicely, It uses format.pl, a perl script to format <pre> blocks nicely,
@ -9,16 +23,16 @@ version, year, etc.
Usage: Usage:
xmlproc.sh -v manual.xml ./xmlproc.sh -v manual.xml
Validates an xml file to ensure no dtd-compliance errors Validates an xml file to ensure no dtd-compliance errors
xmlproc.sh -html manual.xml ./xmlproc.sh -html manual.xml
Output: manual.html Output: manual.html
xmlproc.sh -pdf manual.xml ./xmlproc.sh -pdf manual.xml
Output: manual.pdf Output: manual.pdf
xmlproc.sh -ps manual.xml ./xmlproc.sh -ps manual.xml
Output: manual.ps Output: manual.ps

71
commands/bzip2/blocksort.c → dist/bzip2/blocksort.c vendored
View file

@ -4,66 +4,19 @@
/*--- blocksort.c ---*/ /*--- blocksort.c ---*/
/*-------------------------------------------------------------*/ /*-------------------------------------------------------------*/
/*-- /* ------------------------------------------------------------------
This file is a part of bzip2 and/or libbzip2, a program and This file is part of bzip2/libbzip2, a program and library for
library for lossless, block-sorting data compression. lossless, block-sorting data compression.
Copyright (C) 1996-2005 Julian R Seward. All rights reserved. bzip2/libbzip2 version 1.0.5 of 10 December 2007
Copyright (C) 1996-2007 Julian Seward <jseward@bzip.org>
Redistribution and use in source and binary forms, with or without Please read the WARNING, DISCLAIMER and PATENTS sections in the
modification, are permitted provided that the following conditions README file.
are met:
1. Redistributions of source code must retain the above copyright This program is released under the terms of the license contained
notice, this list of conditions and the following disclaimer. in the file LICENSE.
------------------------------------------------------------------ */
2. The origin of this software must not be misrepresented; you must
not claim that you wrote the original software. If you use this
software in a product, an acknowledgment in the product
documentation would be appreciated but is not required.
3. Altered source versions must be plainly marked as such, and must
not be misrepresented as being the original software.
4. The name of the author may not be used to endorse or promote
products derived from this software without specific prior written
permission.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
Julian Seward, Cambridge, UK.
jseward@bzip.org
bzip2/libbzip2 version 1.0 of 21 March 2000
This program is based on (at least) the work of:
Mike Burrows
David Wheeler
Peter Fenwick
Alistair Moffat
Radford Neal
Ian H. Witten
Robert Sedgewick
Jon L. Bentley
For more information on these sources, see the manual.
To get some idea how the block sorting algorithms in this file
work, read my paper
On the Performance of BWT Sorting Algorithms
in Proceedings of the IEEE Data Compression Conference 2000,
Snowbird, Utah, USA, 27-30 March 2000. The main sort in this
file implements the algorithm called cache in the paper.
--*/
#include "bzlib_private.h" #include "bzlib_private.h"
@ -155,7 +108,7 @@ void fallbackQSort3 ( UInt32* fmap,
while (sp > 0) { while (sp > 0) {
AssertH ( sp < FALLBACK_QSORT_STACK_SIZE, 1004 ); AssertH ( sp < FALLBACK_QSORT_STACK_SIZE - 1, 1004 );
fpop ( lo, hi ); fpop ( lo, hi );
if (hi - lo < FALLBACK_QSORT_SMALL_THRESH) { if (hi - lo < FALLBACK_QSORT_SMALL_THRESH) {
@ -690,7 +643,7 @@ void mainQSort3 ( UInt32* ptr,
while (sp > 0) { while (sp > 0) {
AssertH ( sp < MAIN_QSORT_STACK_SIZE, 1001 ); AssertH ( sp < MAIN_QSORT_STACK_SIZE - 2, 1001 );
mpop ( lo, hi, d ); mpop ( lo, hi, d );
if (hi - lo < MAIN_QSORT_SMALL_THRESH || if (hi - lo < MAIN_QSORT_SMALL_THRESH ||

0
commands/bzip2/bz-common.xsl → dist/bzip2/bz-common.xsl vendored
View file

19
commands/bzip2/bz-fo.xsl → dist/bzip2/bz-fo.xsl vendored
View file

@ -254,4 +254,23 @@
</xsl:template> </xsl:template>
<!-- Bug-fix for Suse 10 PassiveTex version -->
<!-- Precompute attribute values 'cos PassiveTex is too stupid: -->
<xsl:attribute-set name="component.title.properties">
<xsl:attribute name="keep-with-next.within-column">always</xsl:attribute>
<xsl:attribute name="space-before.optimum">
<xsl:value-of select="concat($body.font.master, 'pt')"/>
</xsl:attribute>
<xsl:attribute name="space-before.minimum">
<xsl:value-of select="$body.font.master * 0.8"/>
<xsl:text>pt</xsl:text>
</xsl:attribute>
<xsl:attribute name="space-before.maximum">
<xsl:value-of select="$body.font.master * 1.2"/>
<xsl:text>pt</xsl:text>
</xsl:attribute>
<xsl:attribute name="hyphenate">false</xsl:attribute>
</xsl:attribute-set>
</xsl:stylesheet> </xsl:stylesheet>

0
commands/bzip2/bz-html.xsl → dist/bzip2/bz-html.xsl vendored
View file

4
commands/bzip2/bzdiff → dist/bzip2/bzdiff vendored
View file

@ -12,7 +12,7 @@
# necessary) and fed to cmp or diff. The exit status from cmp # necessary) and fed to cmp or diff. The exit status from cmp
# or diff is preserved. # or diff is preserved.
PATH="/usr/bin:$PATH"; export PATH PATH="/usr/bin:/bin:$PATH"; export PATH
prog=`echo $0 | sed 's|.*/||'` prog=`echo $0 | sed 's|.*/||'`
case "$prog" in case "$prog" in
*cmp) comp=${CMP-cmp} ;; *cmp) comp=${CMP-cmp} ;;
@ -37,7 +37,7 @@ if test -z "$FILES"; then
echo "Usage: $prog [${comp}_options] file [file]" echo "Usage: $prog [${comp}_options] file [file]"
exit 1 exit 1
fi fi
tmp=`tempfile -d /tmp -p bz` || { tmp=`mktemp ${TMPDIR:-/tmp}/bzdiff.XXXXXXXXXX` || {
echo 'cannot create a temporary file' >&2 echo 'cannot create a temporary file' >&2
exit 1 exit 1
} }

0
commands/bzip2/bzdiff.1 → dist/bzip2/bzdiff.1 vendored
View file

6
commands/bzip2/bzgrep → dist/bzip2/bzgrep vendored
View file

@ -63,7 +63,11 @@ for i do
bzip2 -cdfq "$i" | $grep $opt "$pat" bzip2 -cdfq "$i" | $grep $opt "$pat"
r=$? r=$?
else else
bzip2 -cdfq "$i" | $grep $opt "$pat" | sed "s|^|${i}:|" j=${i//\\/\\\\}
j=${j//|/\\|}
j=${j//&/\\&}
j=`printf "%s" "$j" | tr '\n' ' '`
bzip2 -cdfq "$i" | $grep $opt "$pat" | sed "s|^|${j}:|"
r=$? r=$?
fi fi
test "$r" -ne 0 && res="$r" test "$r" -ne 0 && res="$r"

0
commands/bzip2/bzgrep.1 → dist/bzip2/bzgrep.1 vendored
View file

0
commands/bzip2/bzip.css → dist/bzip2/bzip.css vendored
View file

BIN
dist/bzip2/bzip2 vendored Executable file
View file

Binary file not shown.

510
dist/bzip2/bzip2.1 vendored Normal file
View file

@ -0,0 +1,510 @@
.\" $NetBSD: bzip2.1,v 1.9 2010/05/14 16:43:34 joerg Exp $
.\"
.Dd May 14, 2010
.Dt BZIP2 1
.Os
.Sh NAME
.Nm bzip2 ,
.Nm bunzip2 ,
.Nm bzcat ,
.Nm bzip2recover
.Nd block-sorting file compressor
.Sh SYNOPSIS
.Nm bzip2
.Op Fl 123456789cdfkLqstVvz
.Op Ar filename Ar
.Pp
.Nm bunzip2
.Op Fl fkLVvs
.Op Ar filename Ar
.Pp
.Nm bzcat
.Op Fl s
.Op Ar filename Ar
.Pp
.Nm bzip2recover
.Ar filename
.Sh DESCRIPTION
.Nm bzip2
compresses files using the Burrows-Wheeler block sorting
text compression algorithm, and Huffman coding.
Compression is generally considerably better than that achieved by
more conventional LZ77/LZ78-based compressors, and approaches the
performance of the PPM family of statistical compressors.
.Pp
.Nm bzcat
decompresses files to stdout, and
.Nm bzip2recover
recovers data from damaged bzip2 files.
.Pp
The command-line options are deliberately very similar to
those of
.Xr gzip 1 ,
but they are not identical.
.Pp
.Nm bzip2
expects a list of file names to accompany the command-line flags.
Each file is replaced by a compressed version of
itself, with the name
.Dq Pa original_name.bz2 .
Each compressed file has the same modification date, permissions, and,
when possible, ownership as the corresponding original, so that these
properties can be correctly restored at decompression time.
File name handling is naive in the sense that there is no mechanism
for preserving original file names, permissions, ownerships or dates
in filesystems which lack these concepts, or have serious file name
length restrictions, such as
.Tn MS-DOS .
.Nm bzip2
and
.Nm bunzip2
will by default not overwrite existing files.
If you want this to happen, specify the
.Fl f
flag.
.Pp
If no file names are specified,
.Nm bzip2
compresses from standard input to standard output.
In this case,
.Nm bzip2
will decline to write compressed output to a terminal, as this would
be entirely incomprehensible and therefore pointless.
.Pp
.Nm bunzip2
(or
.Nm bzip2 Fl d )
decompresses all specified files.
Files which were not created by
.Nm bzip2
will be detected and ignored, and a warning issued.
.Nm bzip2
attempts to guess the filename for the decompressed file
from that of the compressed file as follows:
.Bl -column "filename.tbz2" "becomes" -offset indent
.It Pa filename.bz2 Ta becomes Ta Pa filename
.It Pa filename.bz Ta becomes Ta Pa filename
.It Pa filename.tbz2 Ta becomes Ta Pa filename.tar
.It Pa filename.tbz Ta becomes Ta Pa filename.tar
.It Pa anyothername Ta becomes Ta Pa anyothername.out
.El
.Pp
If the file does not end in one of the recognised endings,
.Pa .bz2 ,
.Pa .bz ,
.Pa .tbz2 ,
or
.Pa .tbz ,
.Nm bzip2
complains that it cannot guess the name of the original file, and uses
the original name with
.Pa .out
appended.
.Pp
As with compression, supplying no filenames causes decompression from
standard input to standard output.
.Pp
.Nm bunzip2
will correctly decompress a file which is the concatenation of two or
more compressed files.
The result is the concatenation of the corresponding uncompressed
files.
Integrity testing
.Pq Fl t
of concatenated compressed files is also supported.
.Pp
You can also compress or decompress files to the standard output by
giving the
.Fl c
flag.
Multiple files may be compressed and decompressed like this.
The resulting outputs are fed sequentially to stdout.
Compression of multiple files in this manner generates a stream
containing multiple compressed file representations.
Such a stream can be decompressed correctly only by
.Nm bzip2
version 0.9.0 or later.
Earlier versions of
.Nm bzip2
will stop after decompressing
the first file in the stream.
.Pp
.Nm bzcat
(or
.Nm bzip2 Fl dc )
decompresses all specified files to the standard output.
.Pp
Compression is always performed, even if the compressed file is
slightly larger than the original.
Files of less than about one hundred bytes tend to get larger, since
the compression mechanism has a constant overhead in the region of 50
bytes.
Random data (including the output of most file compressors) is coded
at about 8.05 bits per byte, giving an expansion of around 0.5%.
.Pp
As a self-check for your protection,
.Nm bzip2
uses 32-bit CRCs to make sure that the decompressed version of a file
is identical to the original.
This guards against corruption of the compressed data, and against
undetected bugs in
.Nm bzip2
(hopefully very unlikely).
The chances of data corruption going undetected is microscopic, about
one chance in four billion for each file processed.
Be aware, though, that the check occurs upon decompression, so it can
only tell you that something is wrong.
It can't help you recover the original uncompressed data.
You can use
.Nm bzip2recover
to try to recover data from
damaged files.
.Sh OPTIONS
.Bl -tag -width "XXrepetitiveXfastXX"
.It Fl Fl
Treats all subsequent arguments as file names, even if they start with
a dash.
This is so you can handle files with names beginning with a dash, for
example:
.Dl bzip2 -- -myfilename .
.It Fl 1 , Fl Fl fast
to
.It Fl 9 , Fl Fl best
Set the block size to 100 k, 200 k ... 900 k when compressing.
Has no effect when decompressing.
See
.Sx MEMORY MANAGEMENT
below.
The
.Fl Fl fast
and
.Fl Fl best
aliases are primarily for GNU
.Xr gzip 1
compatibility.
In particular,
.Fl Fl fast
doesn't make things significantly faster, and
.Fl Fl best
merely selects the default behaviour.
.It Fl c , Fl Fl stdout
Compress or decompress to standard output.
.It Fl d , Fl Fl decompress
Force decompression.
.Nm bzip2 ,
.Nm bunzip2 ,
and
.Nm bzcat
are really the same program, and the decision about what actions to
take is done on the basis of which name is used.
This flag overrides that mechanism, and forces
.Nm bzip2
to decompress.
.It Fl f , Fl Fl force
Force overwrite of output files.
Normally,
.Nm bzip2
will not overwrite existing output files.
Also forces
.Nm bzip2
to break hard links
to files, which it otherwise wouldn't do.
.Pp
.Nm bzip2
normally declines to decompress files which don't have the correct
magic header bytes.
If forced
.Pq Fl f ,
however, it will pass such files through unmodified.
This is how GNU
.Xr gzip 1
behaves.
.It Fl k , Fl Fl keep
Keep (don't delete) input files during compression
or decompression.
.It Fl L , Fl Fl license
Display the license terms and conditions.
.It Fl q , Fl Fl quiet
Suppress non-essential warning messages.
Messages pertaining to I/O errors and other critical events will not
be suppressed.
.It Fl Fl repetitive-fast
.It Fl Fl repetitive-best
These flags are redundant in versions 0.9.5 and above.
They provided some coarse control over the behaviour of the sorting
algorithm in earlier versions, which was sometimes useful.
0.9.5 and above have an improved algorithm which renders these flags
irrelevant.
.It Fl s , Fl Fl small
Reduce memory usage, for compression, decompression and testing.
Files are decompressed and tested using a modified algorithm which
only requires 2.5 bytes per block byte.
This means any file can be decompressed in 2300k of memory, albeit at
about half the normal speed.
During compression,
.Fl s
selects a block size of 200k, which limits memory use to around the
same figure, at the expense of your compression ratio.
In short, if your machine is low on memory (8 megabytes or less), use
.Fl s
for everything.
See
.Sx MEMORY MANAGEMENT
below.
.It Fl t , Fl Fl test
Check integrity of the specified file(s), but don't decompress them.
This really performs a trial decompression and throws away the result.
.It Fl V , Fl Fl version
Display the software version.
.It Fl v , Fl Fl verbose
Verbose mode: show the compression ratio for each file processed.
Further
.Fl v Ap s
increase the verbosity level, spewing out lots of information which is
primarily of interest for diagnostic purposes.
.It Fl z , Fl Fl compress
The complement to
Fl d :
forces compression, regardless of the invocation name.
.El
.Ss MEMORY MANAGEMENT
.Nm bzip2
compresses large files in blocks.
The block size affects both the compression ratio achieved, and the
amount of memory needed for compression and decompression.
The flags
.Fl 1
through
.Fl 9
specify the block size to be 100,000 bytes through 900,000 bytes (the
default) respectively.
At decompression time, the block size used for compression is read
from the header of the compressed file, and
.Nm bunzip2
then allocates itself just enough memory to decompress the file.
Since block sizes are stored in compressed files, it follows that the
flags
.Fl 1
to
.Fl 9
are irrelevant to and so ignored during decompression.
.Pp
Compression and decompression requirements, in bytes, can be estimated
as:
.Bl -tag -width "Decompression:" -offset indent
.It Compression :
400k + ( 8 x block size )
.It Decompression :
100k + ( 4 x block size ), or 100k + ( 2.5 x block size )
.El
Larger block sizes give rapidly diminishing marginal returns.
Most of the compression comes from the first two or three hundred k of
block size, a fact worth bearing in mind when using
.Nm bzip2
on small machines.
It is also important to appreciate that the decompression memory
requirement is set at compression time by the choice of block size.
.Pp
For files compressed with the default 900k block size,
.Nm bunzip2
will require about 3700 kbytes to decompress.
To support decompression of any file on a 4 megabyte machine,
.Nm bunzip2
has an option to decompress using approximately half this amount of
memory, about 2300 kbytes.
Decompression speed is also halved, so you should use this option only
where necessary.
The relevant flag is
.Fl s .
.Pp
In general, try and use the largest block size memory constraints
allow, since that maximises the compression achieved.
Compression and decompression speed are virtually unaffected by block
size.
.Pp
Another significant point applies to files which fit in a single block
-- that means most files you'd encounter using a large block size.
The amount of real memory touched is proportional to the size of the
file, since the file is smaller than a block.
For example, compressing a file 20,000 bytes long with the flag
.Fl 9
will cause the compressor to allocate around 7600k of memory, but only
touch 400k + 20000 * 8 = 560 kbytes of it.
Similarly, the decompressor will allocate 3700k but only touch 100k +
20000 * 4 = 180 kbytes.
.Pp
Here is a table which summarises the maximum memory usage for different
block sizes.
Also recorded is the total compressed size for 14 files of the Calgary
Text Compression Corpus totalling 3,141,622 bytes.
This column gives some feel for how compression varies with block size.
These figures tend to understate the advantage of larger block sizes
for larger files, since the Corpus is dominated by smaller files.
.Bl -column "Flag" "Compression" "Decompression" "DecompressionXXs" "Corpus size"
.It Sy Flag Ta Sy Compression Ta Sy Decompression Ta Sy Decompression Fl s Ta Sy Corpus size
.It -1 Ta 1200k Ta 500k Ta 350k Ta 914704
.It -2 Ta 2000k Ta 900k Ta 600k Ta 877703
.It -3 Ta 2800k Ta 1300k Ta 850k Ta 860338
.It -4 Ta 3600k Ta 1700k Ta 1100k Ta 846899
.It -5 Ta 4400k Ta 2100k Ta 1350k Ta 845160
.It -6 Ta 5200k Ta 2500k Ta 1600k Ta 838626
.It -7 Ta 6100k Ta 2900k Ta 1850k Ta 834096
.It -8 Ta 6800k Ta 3300k Ta 2100k Ta 828642
.It -9 Ta 7600k Ta 3700k Ta 2350k Ta 828642
.El
.Ss RECOVERING DATA FROM DAMAGED FILES
.Nm bzip2
compresses files in blocks, usually 900kbytes long.
Each block is handled independently.
If a media or transmission error causes a multi-block
.Pa .bz2
file to become damaged, it may be possible to recover data from the
undamaged blocks in the file.
.Pp
The compressed representation of each block is delimited by a 48-bit
pattern, which makes it possible to find the block boundaries with
reasonable certainty.
Each block also carries its own 32-bit CRC, so damaged blocks can be
distinguished from undamaged ones.
.Pp
.Nm bzip2recover
is a simple program whose purpose is to search for blocks in
.Pa .bz2
files, and write each block out into its own
.Pa .bz2
file.
You can then use
.Nm bzip2
.Fl t
to test the integrity of the resulting files, and decompress those
which are undamaged.
.Pp
.Nm bzip2recover
takes a single argument, the name of the damaged file, and writes a
number of files
.Dq Pa rec00001file.bz2 ,
.Dq Pa rec00002file.bz2 ,
etc., containing the extracted blocks.
The output filenames are designed so that the use of wildcards in
subsequent processing -- for example,
.Dl bzip2 -dc rec*file.bz2 \*[Gt] recovered_data
-- processes the files in the correct order.
.Pp
.Nm bzip2recover
should be of most use dealing with large
.Pa .bz2
files, as these will contain many blocks.
It is clearly futile to use it on damaged single-block files, since a
damaged block cannot be recovered.
If you wish to minimise any potential data loss through media or
transmission errors, you might consider compressing with a smaller
block size.
.Ss PERFORMANCE NOTES
The sorting phase of compression gathers together similar strings in
the file.
Because of this, files containing very long runs of repeated
symbols, like
.Dq aabaabaabaab...
(repeated several hundred times) may compress more slowly than normal.
Versions 0.9.5 and above fare much better than previous versions in
this respect.
The ratio between worst-case and average-case compression time is in
the region of 10:1.
For previous versions, this figure was more like 100:1.
You can use the
.Fl vvvv
option to monitor progress in great detail, if you want.
.Pp
Decompression speed is unaffected by these phenomena.
.Pp
.Nm bzip2
usually allocates several megabytes of memory to operate in, and then
charges all over it in a fairly random fashion.
This means that performance, both for compressing and decompressing,
is largely determined by the speed at which your machine can service
cache misses.
Because of this, small changes to the code to reduce the miss rate
have been observed to give disproportionately large performance
improvements.
I imagine
.Nm bzip2
will perform best on machines with very large caches.
.Sh ENVIRONMENT
.Nm bzip2
will read arguments from the environment variables
.Ev BZIP2
and
.Ev BZIP ,
in that order, and will process them before any arguments read from
the command line.
This gives a convenient way to supply default arguments.
.Sh 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 compressed
file, 3 for an internal consistency error (e.g., bug) which caused
.Nm bzip2
to panic.
.Sh AUTHORS
.An -nosplit
.An Julian Seward
.Aq jseward@bzip.org
.Pp
.Pa http://www.bzip.org
.Pp
The ideas embodied in
.Nm bzip2
are due to (at least) the following people:
.An Michael Burrows
and
.An David Wheeler
(for the block sorting transformation),
.An David Wheeler
(again, for the Huffman coder),
.An Peter Fenwick
(for the structured coding model in the original
.Nm bzip ,
and many refinements), and
.An Alistair Moffat ,
.An Radford Neal ,
and
.An Ian Witten
(for the arithmetic coder in the original
.Nm bzip ) .
I am much indebted for their help, support and advice.
See the manual in the source distribution for pointers to sources of
documentation.
Christian von Roques encouraged me to look for faster sorting
algorithms, so as to speed up compression.
Bela Lubkin encouraged me to improve the worst-case compression
performance.
Donna Robinson XMLised the documentation.
The bz* scripts are derived from those of GNU gzip.
Many people sent patches, helped with portability problems, lent
machines, gave advice and were generally helpful.
.Sh CAVEATS
I/O error messages are not as helpful as they could be.
.Nm bzip2
tries hard to detect I/O errors and exit cleanly, but the details of
what the problem is sometimes seem rather misleading.
.Pp
This manual page pertains to version 1.0.5 of
.Nm bzip2 .
Compressed data created by this version is entirely forwards and
backwards compatible with the previous public releases, versions
0.1pl2, 0.9.0, 0.9.5, 1.0.0, 1.0.1, 1.0.2 and 1.0.3, but with the
following exception: 0.9.0 and above can correctly decompress multiple
concatenated compressed files.
0.1pl2 cannot do this; it will stop after decompressing just the first
file in the stream.
.Pp
.Nm bzip2recover
versions prior to 1.0.2 used 32-bit integers to represent bit
positions in compressed files, so they could not handle compressed
files more than 512 megabytes long.
Versions 1.0.2 and above use 64-bit ints on some platforms which
support them (GNU supported targets, and Windows).
To establish whether or not
.Nm bzip2recover
was built with such a limitation, run it without arguments.
In any event you can build yourself an unlimited version if you can
recompile it with MaybeUInt64 set to be an unsigned 64-bit integer.

210
commands/bzip2/bzip2.c → dist/bzip2/bzip2.c vendored
View file

@ -1,120 +1,30 @@
/* $NetBSD: bzip2.c,v 1.8 2009/04/11 11:10:43 lukem Exp $ */
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
/*--- A block-sorting, lossless compressor bzip2.c ---*/ /*--- A block-sorting, lossless compressor bzip2.c ---*/
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
/*-- /* ------------------------------------------------------------------
This file is a part of bzip2 and/or libbzip2, a program and This file is part of bzip2/libbzip2, a program and library for
library for lossless, block-sorting data compression. lossless, block-sorting data compression.
Copyright (C) 1996-2005 Julian R Seward. All rights reserved. bzip2/libbzip2 version 1.0.5 of 10 December 2007
Copyright (C) 1996-2007 Julian Seward <jseward@bzip.org>
Redistribution and use in source and binary forms, with or without Please read the WARNING, DISCLAIMER and PATENTS sections in the
modification, are permitted provided that the following conditions README file.
are met:
1. Redistributions of source code must retain the above copyright This program is released under the terms of the license contained
notice, this list of conditions and the following disclaimer. in the file LICENSE.
------------------------------------------------------------------ */
2. The origin of this software must not be misrepresented; you must
not claim that you wrote the original software. If you use this
software in a product, an acknowledgment in the product
documentation would be appreciated but is not required.
3. Altered source versions must be plainly marked as such, and must
not be misrepresented as being the original software.
4. The name of the author may not be used to endorse or promote
products derived from this software without specific prior written
permission.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
Julian Seward, Cambridge, UK.
jseward@bzip.org
bzip2/libbzip2 version 1.0 of 21 March 2000
This program is based on (at least) the work of:
Mike Burrows
David Wheeler
Peter Fenwick
Alistair Moffat
Radford Neal
Ian H. Witten
Robert Sedgewick
Jon L. Bentley
For more information on these sources, see the manual.
--*/
/*----------------------------------------------------*/ /* Place a 1 beside your platform, and 0 elsewhere.
/*--- IMPORTANT ---*/ Generic 32-bit Unix.
/*----------------------------------------------------*/ Also works on 64-bit Unix boxes.
This is the default.
/*-- */
WARNING:
This program and library (attempts to) compress data by
performing several non-trivial transformations on it.
Unless you are 100% familiar with *all* the algorithms
contained herein, and with the consequences of modifying them,
you should NOT meddle with the compression or decompression
machinery. Incorrect changes can and very likely *will*
lead to disasterous loss of data.
DISCLAIMER:
I TAKE NO RESPONSIBILITY FOR ANY LOSS OF DATA ARISING FROM THE
USE OF THIS PROGRAM, HOWSOEVER CAUSED.
Every compression of a file implies an assumption that the
compressed file can be decompressed to reproduce the original.
Great efforts in design, coding and testing have been made to
ensure that this program works correctly. However, the
complexity of the algorithms, and, in particular, the presence
of various special cases in the code which occur with very low
but non-zero probability make it impossible to rule out the
possibility of bugs remaining in the program. DO NOT COMPRESS
ANY DATA WITH THIS PROGRAM AND/OR LIBRARY UNLESS YOU ARE PREPARED
TO ACCEPT THE POSSIBILITY, HOWEVER SMALL, THAT THE DATA WILL
NOT BE RECOVERABLE.
That is not to say this program is inherently unreliable.
Indeed, I very much hope the opposite is true. bzip2/libbzip2
has been carefully constructed and extensively tested.
PATENTS:
To the best of my knowledge, bzip2/libbzip2 does not use any
patented algorithms. However, I do not have the resources
available to carry out a full patent search. Therefore I cannot
give any guarantee of the above statement.
--*/
/*----------------------------------------------------*/
/*--- and now for something much more pleasant :-) ---*/
/*----------------------------------------------------*/
/*---------------------------------------------*/
/*--
Place a 1 beside your platform, and 0 elsewhere.
--*/
/*--
Generic 32-bit Unix.
Also works on 64-bit Unix boxes.
This is the default.
--*/
#define BZ_UNIX 1 #define BZ_UNIX 1
/*-- /*--
@ -302,18 +212,20 @@ Char progNameReally[FILE_NAME_LEN];
FILE *outputHandleJustInCase; FILE *outputHandleJustInCase;
Int32 workFactor; Int32 workFactor;
static void panic ( Char* ) NORETURN; static void panic ( const Char* ) NORETURN;
static void ioError ( void ) NORETURN; static void ioError ( void ) NORETURN;
static void outOfMemory ( void ) NORETURN; static void outOfMemory ( void ) NORETURN;
static void configError ( void ) NORETURN; static void configError ( void ) NORETURN;
static void crcError ( void ) NORETURN; static void crcError ( void ) NORETURN;
static void cleanUpAndFail ( Int32 ) NORETURN; static void cleanUpAndFail ( Int32 ) NORETURN;
static void compressedStreamEOF ( void ) NORETURN; static void compressedStreamEOF ( void ) NORETURN;
static void copyFileName ( Char*, Char* ); static void copyFileName ( Char*, const Char* );
static void* myMalloc ( Int32 ); static void* myMalloc ( Int32 );
static void applySavedFileAttrToOutputFile ( IntNative fd );
static FILE* fopen_output_safely ( Char*, const char* );
/*---------------------------------------------------*/ /*---------------------------------------------------*/
/*--- An implementation of 64-bit ints. Sigh. ---*/ /*--- An implementation of 64-bit ints. Sigh. ---*/
@ -457,6 +369,9 @@ void compressStream ( FILE *stream, FILE *zStream )
ret = fflush ( zStream ); ret = fflush ( zStream );
if (ret == EOF) goto errhandler_io; if (ret == EOF) goto errhandler_io;
if (zStream != stdout) { if (zStream != stdout) {
Int32 fd = fileno ( zStream );
if (fd < 0) goto errhandler_io;
applySavedFileAttrToOutputFile ( fd );
ret = fclose ( zStream ); ret = fclose ( zStream );
outputHandleJustInCase = NULL; outputHandleJustInCase = NULL;
if (ret == EOF) goto errhandler_io; if (ret == EOF) goto errhandler_io;
@ -525,7 +440,7 @@ Bool uncompressStream ( FILE *zStream, FILE *stream )
UChar obuf[5000]; UChar obuf[5000];
UChar unused[BZ_MAX_UNUSED]; UChar unused[BZ_MAX_UNUSED];
Int32 nUnused; Int32 nUnused;
void* unusedTmpV; void* unusedTmpV = NULL;
UChar* unusedTmp; UChar* unusedTmp;
nUnused = 0; nUnused = 0;
@ -555,7 +470,7 @@ Bool uncompressStream ( FILE *zStream, FILE *stream )
} }
if (bzerr != BZ_STREAM_END) goto errhandler; if (bzerr != BZ_STREAM_END) goto errhandler;
BZ2_bzReadGetUnused ( &bzerr, bzf, &unusedTmpV, &nUnused ); BZ2_bzReadGetUnused ( &bzerr, bzf, (void*)(&unusedTmpV), &nUnused );
if (bzerr != BZ_OK) panic ( "decompress:bzReadGetUnused" ); if (bzerr != BZ_OK) panic ( "decompress:bzReadGetUnused" );
unusedTmp = (UChar*)unusedTmpV; unusedTmp = (UChar*)unusedTmpV;
@ -569,6 +484,11 @@ Bool uncompressStream ( FILE *zStream, FILE *stream )
closeok: closeok:
if (ferror(zStream)) goto errhandler_io; if (ferror(zStream)) goto errhandler_io;
if (stream != stdout) {
Int32 fd = fileno ( stream );
if (fd < 0) goto errhandler_io;
applySavedFileAttrToOutputFile ( fd );
}
ret = fclose ( zStream ); ret = fclose ( zStream );
if (ret == EOF) goto errhandler_io; if (ret == EOF) goto errhandler_io;
@ -641,8 +561,8 @@ Bool testStream ( FILE *zStream )
UChar obuf[5000]; UChar obuf[5000];
UChar unused[BZ_MAX_UNUSED]; UChar unused[BZ_MAX_UNUSED];
Int32 nUnused; Int32 nUnused;
void* unusedTmpV; void* unusedTmpV = NULL;
UChar* unusedTmp; UChar* unusedTmp = NULL;
nUnused = 0; nUnused = 0;
streamNo = 0; streamNo = 0;
@ -665,7 +585,7 @@ Bool testStream ( FILE *zStream )
} }
if (bzerr != BZ_STREAM_END) goto errhandler; if (bzerr != BZ_STREAM_END) goto errhandler;
BZ2_bzReadGetUnused ( &bzerr, bzf, &unusedTmpV, &nUnused ); BZ2_bzReadGetUnused ( &bzerr, bzf, (void*)(&unusedTmpV), &nUnused );
if (bzerr != BZ_OK) panic ( "test:bzReadGetUnused" ); if (bzerr != BZ_OK) panic ( "test:bzReadGetUnused" );
unusedTmp = (UChar*)unusedTmpV; unusedTmp = (UChar*)unusedTmpV;
@ -826,7 +746,7 @@ void cleanUpAndFail ( Int32 ec )
/*---------------------------------------------*/ /*---------------------------------------------*/
static static
void panic ( Char* s ) void panic ( const Char* s )
{ {
fprintf ( stderr, fprintf ( stderr,
"\n%s: PANIC -- internal consistency error:\n" "\n%s: PANIC -- internal consistency error:\n"
@ -895,6 +815,7 @@ void mySignalCatcher ( IntNative n )
/*---------------------------------------------*/ /*---------------------------------------------*/
#ifndef SMALL
static static
void mySIGSEGVorSIGBUScatcher ( IntNative n ) void mySIGSEGVorSIGBUScatcher ( IntNative n )
{ {
@ -948,6 +869,7 @@ void mySIGSEGVorSIGBUScatcher ( IntNative n )
cleanUpAndFail( 3 ); else cleanUpAndFail( 3 ); else
{ cadvise(); cleanUpAndFail( 2 ); } { cadvise(); cleanUpAndFail( 2 ); }
} }
#endif
/*---------------------------------------------*/ /*---------------------------------------------*/
@ -999,7 +921,7 @@ void pad ( Char *s )
/*---------------------------------------------*/ /*---------------------------------------------*/
static static
void copyFileName ( Char* to, Char* from ) void copyFileName ( Char* to, const Char* from )
{ {
if ( strlen(from) > FILE_NAME_LEN-10 ) { if ( strlen(from) > FILE_NAME_LEN-10 ) {
fprintf ( fprintf (
@ -1039,6 +961,7 @@ Bool fileExists ( Char* name )
For non-Unix platforms, if we are not worrying about For non-Unix platforms, if we are not worrying about
security issues, simple this simply behaves like fopen. security issues, simple this simply behaves like fopen.
*/ */
static
FILE* fopen_output_safely ( Char* name, const char* mode ) FILE* fopen_output_safely ( Char* name, const char* mode )
{ {
# if BZ_UNIX # if BZ_UNIX
@ -1129,7 +1052,7 @@ void saveInputFileMetaInfo ( Char *srcName )
static static
void applySavedMetaInfoToOutputFile ( Char *dstName ) void applySavedTimeInfoToOutputFile ( Char *dstName )
{ {
# if BZ_UNIX # if BZ_UNIX
IntNative retVal; IntNative retVal;
@ -1138,13 +1061,21 @@ void applySavedMetaInfoToOutputFile ( Char *dstName )
uTimBuf.actime = fileMetaInfo.st_atime; uTimBuf.actime = fileMetaInfo.st_atime;
uTimBuf.modtime = fileMetaInfo.st_mtime; uTimBuf.modtime = fileMetaInfo.st_mtime;
retVal = chmod ( dstName, fileMetaInfo.st_mode );
ERROR_IF_NOT_ZERO ( retVal );
retVal = utime ( dstName, &uTimBuf ); retVal = utime ( dstName, &uTimBuf );
ERROR_IF_NOT_ZERO ( retVal ); ERROR_IF_NOT_ZERO ( retVal );
# endif
}
retVal = chown ( dstName, fileMetaInfo.st_uid, fileMetaInfo.st_gid ); static
void applySavedFileAttrToOutputFile ( IntNative fd )
{
# if BZ_UNIX
IntNative retVal;
retVal = fchmod ( fd, fileMetaInfo.st_mode );
ERROR_IF_NOT_ZERO ( retVal );
(void) fchown ( fd, fileMetaInfo.st_uid, fileMetaInfo.st_gid );
/* chown() will in many cases return with EPERM, which can /* chown() will in many cases return with EPERM, which can
be safely ignored. be safely ignored.
*/ */
@ -1175,13 +1106,13 @@ Bool containsDubiousChars ( Char* name )
/*---------------------------------------------*/ /*---------------------------------------------*/
#define BZ_N_SUFFIX_PAIRS 4 #define BZ_N_SUFFIX_PAIRS 4
Char* zSuffix[BZ_N_SUFFIX_PAIRS] const Char* zSuffix[BZ_N_SUFFIX_PAIRS]
= { ".bz2", ".bz", ".tbz2", ".tbz" }; = { ".bz2", ".bz", ".tbz2", ".tbz" };
Char* unzSuffix[BZ_N_SUFFIX_PAIRS] const Char* unzSuffix[BZ_N_SUFFIX_PAIRS]
= { "", "", ".tar", ".tar" }; = { "", "", ".tar", ".tar" };
static static
Bool hasSuffix ( Char* s, Char* suffix ) Bool hasSuffix ( Char* s, const Char* suffix )
{ {
Int32 ns = strlen(s); Int32 ns = strlen(s);
Int32 nx = strlen(suffix); Int32 nx = strlen(suffix);
@ -1192,7 +1123,8 @@ Bool hasSuffix ( Char* s, Char* suffix )
static static
Bool mapSuffix ( Char* name, Bool mapSuffix ( Char* name,
Char* oldSuffix, Char* newSuffix ) const Char* oldSuffix,
const Char* newSuffix )
{ {
if (!hasSuffix(name,oldSuffix)) return False; if (!hasSuffix(name,oldSuffix)) return False;
name[strlen(name)-strlen(oldSuffix)] = 0; name[strlen(name)-strlen(oldSuffix)] = 0;
@ -1370,7 +1302,7 @@ void compress ( Char *name )
/*--- If there was an I/O error, we won't get here. ---*/ /*--- If there was an I/O error, we won't get here. ---*/
if ( srcMode == SM_F2F ) { if ( srcMode == SM_F2F ) {
applySavedMetaInfoToOutputFile ( outName ); applySavedTimeInfoToOutputFile ( outName );
deleteOutputOnInterrupt = False; deleteOutputOnInterrupt = False;
if ( !keepInputFiles ) { if ( !keepInputFiles ) {
IntNative retVal = remove ( inName ); IntNative retVal = remove ( inName );
@ -1548,7 +1480,7 @@ void uncompress ( Char *name )
/*--- If there was an I/O error, we won't get here. ---*/ /*--- If there was an I/O error, we won't get here. ---*/
if ( magicNumberOK ) { if ( magicNumberOK ) {
if ( srcMode == SM_F2F ) { if ( srcMode == SM_F2F ) {
applySavedMetaInfoToOutputFile ( outName ); applySavedTimeInfoToOutputFile ( outName );
deleteOutputOnInterrupt = False; deleteOutputOnInterrupt = False;
if ( !keepInputFiles ) { if ( !keepInputFiles ) {
IntNative retVal = remove ( inName ); IntNative retVal = remove ( inName );
@ -1678,11 +1610,11 @@ void license ( void )
"bzip2, a block-sorting file compressor. " "bzip2, a block-sorting file compressor. "
"Version %s.\n" "Version %s.\n"
" \n" " \n"
" Copyright (C) 1996-2005 by Julian Seward.\n" " Copyright (C) 1996-2007 by Julian Seward.\n"
" \n" " \n"
" This program is free software; you can redistribute it and/or modify\n" " This program is free software; you can redistribute it and/or modify\n"
" it under the terms set out in the LICENSE file, which is included\n" " it under the terms set out in the LICENSE file, which is included\n"
" in the bzip2-1.0 source distribution.\n" " in the bzip2-1.0.5 source distribution.\n"
" \n" " \n"
" This program is distributed in the hope that it will be useful,\n" " This program is distributed in the hope that it will be useful,\n"
" but WITHOUT ANY WARRANTY; without even the implied warranty of\n" " but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
@ -1817,7 +1749,7 @@ Cell *snocString ( Cell *root, Char *name )
/*---------------------------------------------*/ /*---------------------------------------------*/
static static
void addFlagsFromEnvVar ( Cell** argList, Char* varName ) void addFlagsFromEnvVar ( Cell** argList, const Char* varName )
{ {
Int32 i, j, k; Int32 i, j, k;
Char *envbase, *p; Char *envbase, *p;
@ -1877,6 +1809,7 @@ IntNative main ( IntNative argc, Char *argv[] )
exitValue = 0; exitValue = 0;
i = j = 0; /* avoid bogus warning from egcs-1.1.X */ i = j = 0; /* avoid bogus warning from egcs-1.1.X */
#ifndef SMALL
/*-- Set up signal handlers for mem access errors --*/ /*-- Set up signal handlers for mem access errors --*/
signal (SIGSEGV, mySIGSEGVorSIGBUScatcher); signal (SIGSEGV, mySIGSEGVorSIGBUScatcher);
# if BZ_UNIX # if BZ_UNIX
@ -1884,6 +1817,7 @@ IntNative main ( IntNative argc, Char *argv[] )
signal (SIGBUS, mySIGSEGVorSIGBUScatcher); signal (SIGBUS, mySIGSEGVorSIGBUScatcher);
# endif # endif
# endif # endif
#endif
copyFileName ( inName, "(none)" ); copyFileName ( inName, "(none)" );
copyFileName ( outName, "(none)" ); copyFileName ( outName, "(none)" );
@ -1938,10 +1872,6 @@ IntNative main ( IntNative argc, Char *argv[] )
srcMode = (numFileNames == 0) ? SM_I2O : SM_F2O; srcMode = (numFileNames == 0) ? SM_I2O : SM_F2O;
} }
if(strstr ( progName, "small" ) != 0) {
smallMode = True;
}
/*-- Look at the flags. --*/ /*-- Look at the flags. --*/
for (aa = argList; aa != NULL; aa = aa->link) { for (aa = argList; aa != NULL; aa = aa->link) {

123
dist/bzip2/bzip2netbsd vendored Executable file
View file

@ -0,0 +1,123 @@
#! /bin/sh
#
# $NetBSD: bzip2netbsd,v 1.3 2008/04/30 13:10:47 martin Exp $
#
# Copyright (c) 1998, 1999, 2001 The NetBSD Foundation, Inc.
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
# ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
# TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
#
# bzip2netbsd: convert a bzip2 source tree into a
# netbsd bzip2 source tree, under basesrc/dist,
# based on the other *2netbsd scripts in the NetBSD source tree
#
# Rough instructions for importing new bzip2 release:
#
# $ cd /some/where/temporary
# $ tar xpfz /new/bzip2/release/tar/file
# $ sh /usr/src/dist/bzip2/bzip2netbsd bzip2-1.x.y `pwd`
# $ cd basesrc/dist/bzip2
# $ cvs import -m "Import bzip2 1.x.y" basesrc/dist/bzip2 JSEWARD bzip2-1-x-y
# $ cd ../../..
# $ rm -r basesrc bzip2-1.x.y
#
# - check makefiles to see if any extra sources have been added.
# - update distrib/sets if necessary.
if [ $# -ne 2 ]; then echo "bzip2netbsd src dest"; exit 1; fi
r=$1
d=$2/basesrc/dist/bzip2
case "$d" in
/*)
;;
*)
d=`/bin/pwd`/$d
;;
esac
case "$r" in
/*)
;;
*)
r=`/bin/pwd`/$r
;;
esac
echo preparing directory $d
rm -rf $d
mkdir -p $d
### Copy the files and directories
echo copying $r to $d
cd $r
pax -rw * $d
# cd to import directory
cd $d
### delete formatted manual pages
echo removing unneeded directories and files
rm -f bzip2.1.preformatted bzip2.txt
### bzip2 distribution doesn't have RCS/CVS tags (!).
### Add our NetBSD RCS Id
find $d -type f -name '*.[chly]' -print | while read c; do
sed 1q < $c | grep -q '\$NetBSD' || (
echo "/* \$NetBSD\$ */" >/tmp/bzip3n$$
echo "" >>/tmp/bzip3n$$
cat $c >> /tmp/bzip3n$$
mv /tmp/bzip3n$$ $c && echo added NetBSD RCS tag to $c
)
done
find $d -type f -name '*.[0-9]' -print | while read m; do
sed 1q < $m | grep -q '\$NetBSD' || (
echo ".\\\" \$NetBSD\$" >/tmp/bzip2m$$
echo ".\\\"" >>/tmp/bzip2m$$
cat $m >> /tmp/bzip2m$$
mv /tmp/bzip2m$$ $m && echo added NetBSD RCS tag to $m
)
done
echo done
### Clean up any CVS directories that might be around.
echo "cleaning up CVS residue."
(
cd $d
find . -type d -name "CVS" -print | xargs rm -r
)
echo done
### Fixing file and directory permissions.
echo "Fixing file/directory permissions."
(
cd $d
find . -type f -print | xargs chmod u+rw,go+r
find . -type d -print | xargs chmod u+rwx,go+rx
)
echo done
exit 0

BIN
dist/bzip2/bzip2recover vendored Executable file
View file

Binary file not shown.

123
commands/bzip2/bzip2recover.c → dist/bzip2/bzip2recover.c vendored
View file

@ -1,56 +1,27 @@
/* $NetBSD: bzip2recover.c,v 1.7 2008/03/18 17:35:36 christos Exp $ */
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
/*--- Block recoverer program for bzip2 ---*/ /*--- Block recoverer program for bzip2 ---*/
/*--- bzip2recover.c ---*/ /*--- bzip2recover.c ---*/
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
/*-- /* ------------------------------------------------------------------
This program is bzip2recover, a program to attempt data This file is part of bzip2/libbzip2, a program and library for
salvage from damaged files created by the accompanying lossless, block-sorting data compression.
bzip2-1.0.3 program.
Copyright (C) 1996-2005 Julian R Seward. All rights reserved. bzip2/libbzip2 version 1.0.5 of 10 December 2007
Copyright (C) 1996-2007 Julian Seward <jseward@bzip.org>
Redistribution and use in source and binary forms, with or without Please read the WARNING, DISCLAIMER and PATENTS sections in the
modification, are permitted provided that the following conditions README file.
are met:
1. Redistributions of source code must retain the above copyright This program is released under the terms of the license contained
notice, this list of conditions and the following disclaimer. in the file LICENSE.
------------------------------------------------------------------ */
2. The origin of this software must not be misrepresented; you must /* This program is a complete hack and should be rewritten properly.
not claim that you wrote the original software. If you use this It isn't very complicated. */
software in a product, an acknowledgment in the product
documentation would be appreciated but is not required.
3. Altered source versions must be plainly marked as such, and must
not be misrepresented as being the original software.
4. The name of the author may not be used to endorse or promote
products derived from this software without specific prior written
permission.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
Julian Seward, Cambridge, UK.
jseward@bzip.org
bzip2/libbzip2 version 1.0.3 of 15 February 2005
--*/
/*--
This program is a complete hack and should be rewritten
properly. It isn't very complicated.
--*/
#include <stdio.h> #include <stdio.h>
#include <errno.h> #include <errno.h>
@ -98,6 +69,32 @@ Char progName[BZ_MAX_FILENAME];
MaybeUInt64 bytesOut = 0; MaybeUInt64 bytesOut = 0;
MaybeUInt64 bytesIn = 0; MaybeUInt64 bytesIn = 0;
/*---------------------------------------------------*/
/*--- Bit stream I/O ---*/
/*---------------------------------------------------*/
typedef
struct {
FILE* handle;
Int32 buffer;
Int32 buffLive;
Char mode;
}
BitStream;
static void readError ( void );
static void writeError ( void );
static void mallocFail ( Int32 n );
static BitStream* bsOpenReadStream ( FILE* stream );
static BitStream* bsOpenWriteStream ( FILE* stream );
static void bsPutBit ( BitStream* bs, Int32 bit );
static Int32 bsGetBit ( BitStream* bs );
static void bsClose ( BitStream* bs );
static void bsPutUChar ( BitStream* bs, UChar c );
static void bsPutUInt32 ( BitStream* bs, UInt32 c );
static Bool endsInBz2 ( Char* name );
static void tooManyBlocks ( Int32 max_handled_blocks );
/*---------------------------------------------------*/ /*---------------------------------------------------*/
/*--- Header bytes ---*/ /*--- Header bytes ---*/
@ -114,7 +111,7 @@ MaybeUInt64 bytesIn = 0;
/*---------------------------------------------------*/ /*---------------------------------------------------*/
/*---------------------------------------------*/ /*---------------------------------------------*/
void readError ( void ) static void readError ( void )
{ {
fprintf ( stderr, fprintf ( stderr,
"%s: I/O error reading `%s', possible reason follows.\n", "%s: I/O error reading `%s', possible reason follows.\n",
@ -127,7 +124,7 @@ void readError ( void )
/*---------------------------------------------*/ /*---------------------------------------------*/
void writeError ( void ) static void writeError ( void )
{ {
fprintf ( stderr, fprintf ( stderr,
"%s: I/O error reading `%s', possible reason follows.\n", "%s: I/O error reading `%s', possible reason follows.\n",
@ -140,7 +137,7 @@ void writeError ( void )
/*---------------------------------------------*/ /*---------------------------------------------*/
void mallocFail ( Int32 n ) static void mallocFail ( Int32 n )
{ {
fprintf ( stderr, fprintf ( stderr,
"%s: malloc failed on request for %d bytes.\n", "%s: malloc failed on request for %d bytes.\n",
@ -152,7 +149,7 @@ void mallocFail ( Int32 n )
/*---------------------------------------------*/ /*---------------------------------------------*/
void tooManyBlocks ( Int32 max_handled_blocks ) static void tooManyBlocks ( Int32 max_handled_blocks )
{ {
fprintf ( stderr, fprintf ( stderr,
"%s: `%s' appears to contain more than %d blocks\n", "%s: `%s' appears to contain more than %d blocks\n",
@ -168,22 +165,8 @@ void tooManyBlocks ( Int32 max_handled_blocks )
/*---------------------------------------------------*/
/*--- Bit stream I/O ---*/
/*---------------------------------------------------*/
typedef
struct {
FILE* handle;
Int32 buffer;
Int32 buffLive;
Char mode;
}
BitStream;
/*---------------------------------------------*/ /*---------------------------------------------*/
BitStream* bsOpenReadStream ( FILE* stream ) static BitStream* bsOpenReadStream ( FILE* stream )
{ {
BitStream *bs = malloc ( sizeof(BitStream) ); BitStream *bs = malloc ( sizeof(BitStream) );
if (bs == NULL) mallocFail ( sizeof(BitStream) ); if (bs == NULL) mallocFail ( sizeof(BitStream) );
@ -196,7 +179,7 @@ BitStream* bsOpenReadStream ( FILE* stream )
/*---------------------------------------------*/ /*---------------------------------------------*/
BitStream* bsOpenWriteStream ( FILE* stream ) static BitStream* bsOpenWriteStream ( FILE* stream )
{ {
BitStream *bs = malloc ( sizeof(BitStream) ); BitStream *bs = malloc ( sizeof(BitStream) );
if (bs == NULL) mallocFail ( sizeof(BitStream) ); if (bs == NULL) mallocFail ( sizeof(BitStream) );
@ -209,7 +192,7 @@ BitStream* bsOpenWriteStream ( FILE* stream )
/*---------------------------------------------*/ /*---------------------------------------------*/
void bsPutBit ( BitStream* bs, Int32 bit ) static void bsPutBit ( BitStream* bs, Int32 bit )
{ {
if (bs->buffLive == 8) { if (bs->buffLive == 8) {
Int32 retVal = putc ( (UChar) bs->buffer, bs->handle ); Int32 retVal = putc ( (UChar) bs->buffer, bs->handle );
@ -228,7 +211,7 @@ void bsPutBit ( BitStream* bs, Int32 bit )
/*-- /*--
Returns 0 or 1, or 2 to indicate EOF. Returns 0 or 1, or 2 to indicate EOF.
--*/ --*/
Int32 bsGetBit ( BitStream* bs ) static Int32 bsGetBit ( BitStream* bs )
{ {
if (bs->buffLive > 0) { if (bs->buffLive > 0) {
bs->buffLive --; bs->buffLive --;
@ -247,7 +230,7 @@ Int32 bsGetBit ( BitStream* bs )
/*---------------------------------------------*/ /*---------------------------------------------*/
void bsClose ( BitStream* bs ) static void bsClose ( BitStream* bs )
{ {
Int32 retVal; Int32 retVal;
@ -271,7 +254,7 @@ void bsClose ( BitStream* bs )
/*---------------------------------------------*/ /*---------------------------------------------*/
void bsPutUChar ( BitStream* bs, UChar c ) static void bsPutUChar ( BitStream* bs, UChar c )
{ {
Int32 i; Int32 i;
for (i = 7; i >= 0; i--) for (i = 7; i >= 0; i--)
@ -280,7 +263,7 @@ void bsPutUChar ( BitStream* bs, UChar c )
/*---------------------------------------------*/ /*---------------------------------------------*/
void bsPutUInt32 ( BitStream* bs, UInt32 c ) static void bsPutUInt32 ( BitStream* bs, UInt32 c )
{ {
Int32 i; Int32 i;
@ -290,7 +273,7 @@ void bsPutUInt32 ( BitStream* bs, UInt32 c )
/*---------------------------------------------*/ /*---------------------------------------------*/
Bool endsInBz2 ( Char* name ) static Bool endsInBz2 ( Char* name )
{ {
Int32 n = strlen ( name ); Int32 n = strlen ( name );
if (n <= 4) return False; if (n <= 4) return False;
@ -345,7 +328,7 @@ Int32 main ( Int32 argc, Char** argv )
inFileName[0] = outFileName[0] = 0; inFileName[0] = outFileName[0] = 0;
fprintf ( stderr, fprintf ( stderr,
"bzip2recover 1.0.3: extracts blocks from damaged .bz2 files.\n" ); "bzip2recover 1.0.5: extracts blocks from damaged .bz2 files.\n" );
if (argc != 2) { if (argc != 2) {
fprintf ( stderr, "%s: usage is `%s damaged_file_name'.\n", fprintf ( stderr, "%s: usage is `%s damaged_file_name'.\n",

98
commands/bzip2/bzlib.c → dist/bzip2/bzlib.c vendored
View file

@ -1,77 +1,34 @@
/* $NetBSD: bzlib.c,v 1.4 2008/03/18 14:47:07 christos Exp $ */
/*-------------------------------------------------------------*/ /*-------------------------------------------------------------*/
/*--- Library top-level functions. ---*/ /*--- Library top-level functions. ---*/
/*--- bzlib.c ---*/ /*--- bzlib.c ---*/
/*-------------------------------------------------------------*/ /*-------------------------------------------------------------*/
/*-- /* ------------------------------------------------------------------
This file is a part of bzip2 and/or libbzip2, a program and This file is part of bzip2/libbzip2, a program and library for
library for lossless, block-sorting data compression. lossless, block-sorting data compression.
Copyright (C) 1996-2005 Julian R Seward. All rights reserved. bzip2/libbzip2 version 1.0.5 of 10 December 2007
Copyright (C) 1996-2007 Julian Seward <jseward@bzip.org>
Redistribution and use in source and binary forms, with or without Please read the WARNING, DISCLAIMER and PATENTS sections in the
modification, are permitted provided that the following conditions README file.
are met:
1. Redistributions of source code must retain the above copyright This program is released under the terms of the license contained
notice, this list of conditions and the following disclaimer. in the file LICENSE.
------------------------------------------------------------------ */
2. The origin of this software must not be misrepresented; you must
not claim that you wrote the original software. If you use this
software in a product, an acknowledgment in the product
documentation would be appreciated but is not required.
3. Altered source versions must be plainly marked as such, and must
not be misrepresented as being the original software.
4. The name of the author may not be used to endorse or promote
products derived from this software without specific prior written
permission.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
Julian Seward, Cambridge, UK.
jseward@bzip.org
bzip2/libbzip2 version 1.0 of 21 March 2000
This program is based on (at least) the work of:
Mike Burrows
David Wheeler
Peter Fenwick
Alistair Moffat
Radford Neal
Ian H. Witten
Robert Sedgewick
Jon L. Bentley
For more information on these sources, see the manual.
--*/
/*--
CHANGES
~~~~~~~
0.9.0 -- original version.
/* CHANGES
0.9.0 -- original version.
0.9.0a/b -- no changes in this file. 0.9.0a/b -- no changes in this file.
0.9.0c -- made zero-length BZ_FLUSH work correctly in bzCompress().
0.9.0c fixed bzWrite/bzRead to ignore zero-length requests.
* made zero-length BZ_FLUSH work correctly in bzCompress(). fixed bzread to correctly handle read requests after EOF.
* fixed bzWrite/bzRead to ignore zero-length requests. wrong parameter order in call to bzDecompressInit in
* fixed bzread to correctly handle read requests after EOF. bzBuffToBuffDecompress. Fixed.
* wrong parameter order in call to bzDecompressInit in */
bzBuffToBuffDecompress. Fixed.
--*/
#include "bzlib_private.h" #include "bzlib_private.h"
@ -93,7 +50,7 @@ void BZ2_bz__AssertH__fail ( int errcode )
"component, you should also report this bug to the author(s)\n" "component, you should also report this bug to the author(s)\n"
"of that program. Please make an effort to report this bug;\n" "of that program. Please make an effort to report this bug;\n"
"timely and accurate bug reports eventually lead to higher\n" "timely and accurate bug reports eventually lead to higher\n"
"quality software. Thanks. Julian Seward, 15 February 2005.\n\n", "quality software. Thanks. Julian Seward, 10 December 2007.\n\n",
errcode, errcode,
BZ2_bzlibVersion() BZ2_bzlibVersion()
); );
@ -643,6 +600,7 @@ Bool unRLE_obuf_to_output_FAST ( DState* s )
UInt32 c_tPos = s->tPos; UInt32 c_tPos = s->tPos;
char* cs_next_out = s->strm->next_out; char* cs_next_out = s->strm->next_out;
unsigned int cs_avail_out = s->strm->avail_out; unsigned int cs_avail_out = s->strm->avail_out;
Int32 ro_blockSize100k = s->blockSize100k;
/* end restore */ /* end restore */
UInt32 avail_out_INIT = cs_avail_out; UInt32 avail_out_INIT = cs_avail_out;
@ -1394,8 +1352,7 @@ int BZ_API(BZ2_bzBuffToBuffDecompress)
/*---------------------------------------------------*/ /*---------------------------------------------------*/
/*-- /*--
Code contributed by Yoshioka Tsuneo Code contributed by Yoshioka Tsuneo (tsuneo@rr.iij4u.or.jp)
(QWF00133@niftyserve.or.jp/tsuneo-y@is.aist-nara.ac.jp),
to support better zlib compatibility. to support better zlib compatibility.
This code is not _officially_ part of libbzip2 (yet); This code is not _officially_ part of libbzip2 (yet);
I haven't tested it, documented it, or considered the I haven't tested it, documented it, or considered the
@ -1406,7 +1363,7 @@ int BZ_API(BZ2_bzBuffToBuffDecompress)
/*---------------------------------------------------*/ /*---------------------------------------------------*/
/*-- /*--
return version like "0.9.0c". return version like "0.9.5d, 4-Sept-1999".
--*/ --*/
const char * BZ_API(BZ2_bzlibVersion)(void) const char * BZ_API(BZ2_bzlibVersion)(void)
{ {
@ -1453,7 +1410,7 @@ BZFILE * bzopen_or_bzdopen
case 's': case 's':
smallMode = 1; break; smallMode = 1; break;
default: default:
if (isdigit((int)(*mode))) { if (isdigit((unsigned char)(*mode))) {
blockSize100k = *mode-BZ_HDR_0; blockSize100k = *mode-BZ_HDR_0;
} }
} }
@ -1559,9 +1516,10 @@ int BZ_API(BZ2_bzflush) (BZFILE *b)
void BZ_API(BZ2_bzclose) (BZFILE* b) void BZ_API(BZ2_bzclose) (BZFILE* b)
{ {
int bzerr; int bzerr;
FILE *fp = ((bzFile *)b)->handle; FILE *fp;
if (b==NULL) {return;} if (b==NULL) {return;}
fp = ((bzFile *)b)->handle;
if(((bzFile*)b)->writing){ if(((bzFile*)b)->writing){
BZ2_bzWriteClose(&bzerr,b,0,NULL,NULL); BZ2_bzWriteClose(&bzerr,b,0,NULL,NULL);
if(bzerr != BZ_OK){ if(bzerr != BZ_OK){
@ -1580,7 +1538,7 @@ void BZ_API(BZ2_bzclose) (BZFILE* b)
/*-- /*--
return last error code return last error code
--*/ --*/
static char *bzerrorstrings[] = { static const char *bzerrorstrings[] = {
"OK" "OK"
,"SEQUENCE_ERROR" ,"SEQUENCE_ERROR"
,"PARAM_ERROR" ,"PARAM_ERROR"

63
commands/bzip2/bzlib.h → dist/bzip2/bzlib.h vendored
View file

@ -4,59 +4,19 @@
/*--- bzlib.h ---*/ /*--- bzlib.h ---*/
/*-------------------------------------------------------------*/ /*-------------------------------------------------------------*/
/*-- /* ------------------------------------------------------------------
This file is a part of bzip2 and/or libbzip2, a program and This file is part of bzip2/libbzip2, a program and library for
library for lossless, block-sorting data compression. lossless, block-sorting data compression.
Copyright (C) 1996-2005 Julian R Seward. All rights reserved. bzip2/libbzip2 version 1.0.5 of 10 December 2007
Copyright (C) 1996-2007 Julian Seward <jseward@bzip.org>
Redistribution and use in source and binary forms, with or without Please read the WARNING, DISCLAIMER and PATENTS sections in the
modification, are permitted provided that the following conditions README file.
are met:
1. Redistributions of source code must retain the above copyright This program is released under the terms of the license contained
notice, this list of conditions and the following disclaimer. in the file LICENSE.
------------------------------------------------------------------ */
2. The origin of this software must not be misrepresented; you must
not claim that you wrote the original software. If you use this
software in a product, an acknowledgment in the product
documentation would be appreciated but is not required.
3. Altered source versions must be plainly marked as such, and must
not be misrepresented as being the original software.
4. The name of the author may not be used to endorse or promote
products derived from this software without specific prior written
permission.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
Julian Seward, Cambridge, UK.
jseward@bzip.org
bzip2/libbzip2 version 1.0 of 21 March 2000
This program is based on (at least) the work of:
Mike Burrows
David Wheeler
Peter Fenwick
Alistair Moffat
Radford Neal
Ian H. Witten
Robert Sedgewick
Jon L. Bentley
For more information on these sources, see the manual.
--*/
#ifndef _BZLIB_H #ifndef _BZLIB_H
@ -262,8 +222,7 @@ BZ_EXTERN int BZ_API(BZ2_bzBuffToBuffDecompress) (
/*-- /*--
Code contributed by Yoshioka Tsuneo Code contributed by Yoshioka Tsuneo (tsuneo@rr.iij4u.or.jp)
(QWF00133@niftyserve.or.jp/tsuneo-y@is.aist-nara.ac.jp),
to support better zlib compatibility. to support better zlib compatibility.
This code is not _officially_ part of libbzip2 (yet); This code is not _officially_ part of libbzip2 (yet);
I haven't tested it, documented it, or considered the I haven't tested it, documented it, or considered the

92
commands/bzip2/bzlib_private.h → dist/bzip2/bzlib_private.h vendored
View file

@ -4,59 +4,19 @@
/*--- bzlib_private.h ---*/ /*--- bzlib_private.h ---*/
/*-------------------------------------------------------------*/ /*-------------------------------------------------------------*/
/*-- /* ------------------------------------------------------------------
This file is a part of bzip2 and/or libbzip2, a program and This file is part of bzip2/libbzip2, a program and library for
library for lossless, block-sorting data compression. lossless, block-sorting data compression.
Copyright (C) 1996-2005 Julian R Seward. All rights reserved. bzip2/libbzip2 version 1.0.5 of 10 December 2007
Copyright (C) 1996-2007 Julian Seward <jseward@bzip.org>
Redistribution and use in source and binary forms, with or without Please read the WARNING, DISCLAIMER and PATENTS sections in the
modification, are permitted provided that the following conditions README file.
are met:
1. Redistributions of source code must retain the above copyright This program is released under the terms of the license contained
notice, this list of conditions and the following disclaimer. in the file LICENSE.
------------------------------------------------------------------ */
2. The origin of this software must not be misrepresented; you must
not claim that you wrote the original software. If you use this
software in a product, an acknowledgment in the product
documentation would be appreciated but is not required.
3. Altered source versions must be plainly marked as such, and must
not be misrepresented as being the original software.
4. The name of the author may not be used to endorse or promote
products derived from this software without specific prior written
permission.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
Julian Seward, Cambridge, UK.
jseward@bzip.org
bzip2/libbzip2 version 1.0 of 21 March 2000
This program is based on (at least) the work of:
Mike Burrows
David Wheeler
Peter Fenwick
Alistair Moffat
Radford Neal
Ian H. Witten
Robert Sedgewick
Jon L. Bentley
For more information on these sources, see the manual.
--*/
#ifndef _BZLIB_PRIVATE_H #ifndef _BZLIB_PRIVATE_H
@ -76,7 +36,7 @@
/*-- General stuff. --*/ /*-- General stuff. --*/
#define BZ_VERSION "1.0.3, 15-Feb-2005" #define BZ_VERSION "1.0.5, 10-Dec-2007"
typedef char Char; typedef char Char;
typedef unsigned char Bool; typedef unsigned char Bool;
@ -94,9 +54,11 @@ typedef unsigned short UInt16;
#endif #endif
#ifndef BZ_NO_STDIO #ifndef BZ_NO_STDIO
extern void BZ2_bz__AssertH__fail ( int errcode ); extern void BZ2_bz__AssertH__fail ( int errcode );
#define AssertH(cond,errcode) \ #define AssertH(cond,errcode) \
{ if (!(cond)) BZ2_bz__AssertH__fail ( errcode ); } { if (!(cond)) BZ2_bz__AssertH__fail ( errcode ); }
#if BZ_DEBUG #if BZ_DEBUG
#define AssertD(cond,msg) \ #define AssertD(cond,msg) \
{ if (!(cond)) { \ { if (!(cond)) { \
@ -107,6 +69,7 @@ extern void BZ2_bz__AssertH__fail ( int errcode );
#else #else
#define AssertD(cond,msg) /* */ #define AssertD(cond,msg) /* */
#endif #endif
#define VPrintf0(zf) \ #define VPrintf0(zf) \
fprintf(stderr,zf) fprintf(stderr,zf)
#define VPrintf1(zf,za1) \ #define VPrintf1(zf,za1) \
@ -119,17 +82,20 @@ extern void BZ2_bz__AssertH__fail ( int errcode );
fprintf(stderr,zf,za1,za2,za3,za4) fprintf(stderr,zf,za1,za2,za3,za4)
#define VPrintf5(zf,za1,za2,za3,za4,za5) \ #define VPrintf5(zf,za1,za2,za3,za4,za5) \
fprintf(stderr,zf,za1,za2,za3,za4,za5) fprintf(stderr,zf,za1,za2,za3,za4,za5)
#else #else
extern void bz_internal_error ( int errcode ); extern void bz_internal_error ( int errcode );
#define AssertH(cond,errcode) \ #define AssertH(cond,errcode) \
{ if (!(cond)) bz_internal_error ( errcode ); } { if (!(cond)) bz_internal_error ( errcode ); }
#define AssertD(cond,msg) /* */ #define AssertD(cond,msg) do { } while (0)
#define VPrintf0(zf) /* */ #define VPrintf0(zf) do { } while (0)
#define VPrintf1(zf,za1) /* */ #define VPrintf1(zf,za1) do { } while (0)
#define VPrintf2(zf,za1,za2) /* */ #define VPrintf2(zf,za1,za2) do { } while (0)
#define VPrintf3(zf,za1,za2,za3) /* */ #define VPrintf3(zf,za1,za2,za3) do { } while (0)
#define VPrintf4(zf,za1,za2,za3,za4) /* */ #define VPrintf4(zf,za1,za2,za3,za4) do { } while (0)
#define VPrintf5(zf,za1,za2,za3,za4,za5) /* */ #define VPrintf5(zf,za1,za2,za3,za4,za5) do { } while (0)
#endif #endif
@ -476,11 +442,15 @@ typedef
/*-- Macros for decompression. --*/ /*-- Macros for decompression. --*/
#define BZ_GET_FAST(cccc) \ #define BZ_GET_FAST(cccc) \
/* c_tPos is unsigned, hence test < 0 is pointless. */ \
if (s->tPos >= (UInt32)100000 * (UInt32)s->blockSize100k) return True; \
s->tPos = s->tt[s->tPos]; \ s->tPos = s->tt[s->tPos]; \
cccc = (UChar)(s->tPos & 0xff); \ cccc = (UChar)(s->tPos & 0xff); \
s->tPos >>= 8; s->tPos >>= 8;
#define BZ_GET_FAST_C(cccc) \ #define BZ_GET_FAST_C(cccc) \
/* c_tPos is unsigned, hence test < 0 is pointless. */ \
if (c_tPos >= (UInt32)100000 * (UInt32)ro_blockSize100k) return True; \
c_tPos = c_tt[c_tPos]; \ c_tPos = c_tt[c_tPos]; \
cccc = (UChar)(c_tPos & 0xff); \ cccc = (UChar)(c_tPos & 0xff); \
c_tPos >>= 8; c_tPos >>= 8;
@ -503,8 +473,10 @@ typedef
(((UInt32)s->ll16[i]) | (GET_LL4(i) << 16)) (((UInt32)s->ll16[i]) | (GET_LL4(i) << 16))
#define BZ_GET_SMALL(cccc) \ #define BZ_GET_SMALL(cccc) \
cccc = BZ2_indexIntoF ( s->tPos, s->cftab ); \ /* c_tPos is unsigned, hence test < 0 is pointless. */ \
s->tPos = GET_LL(s->tPos); if (s->tPos >= (UInt32)100000 * (UInt32)s->blockSize100k) return True; \
cccc = BZ2_indexIntoF ( s->tPos, s->cftab ); \
s->tPos = GET_LL(s->tPos);
/*-- externs for decompression. --*/ /*-- externs for decompression. --*/

0
commands/bzip2/bzmore → dist/bzip2/bzmore vendored
View file

0
commands/bzip2/bzmore.1 → dist/bzip2/bzmore.1 vendored
View file

76
commands/bzip2/compress.c → dist/bzip2/compress.c vendored
View file

@ -4,71 +4,27 @@
/*--- compress.c ---*/ /*--- compress.c ---*/
/*-------------------------------------------------------------*/ /*-------------------------------------------------------------*/
/*-- /* ------------------------------------------------------------------
This file is a part of bzip2 and/or libbzip2, a program and This file is part of bzip2/libbzip2, a program and library for
library for lossless, block-sorting data compression. lossless, block-sorting data compression.
Copyright (C) 1996-2005 Julian R Seward. All rights reserved. bzip2/libbzip2 version 1.0.5 of 10 December 2007
Copyright (C) 1996-2007 Julian Seward <jseward@bzip.org>
Redistribution and use in source and binary forms, with or without Please read the WARNING, DISCLAIMER and PATENTS sections in the
modification, are permitted provided that the following conditions README file.
are met:
1. Redistributions of source code must retain the above copyright This program is released under the terms of the license contained
notice, this list of conditions and the following disclaimer. in the file LICENSE.
------------------------------------------------------------------ */
2. The origin of this software must not be misrepresented; you must
not claim that you wrote the original software. If you use this
software in a product, an acknowledgment in the product
documentation would be appreciated but is not required.
3. Altered source versions must be plainly marked as such, and must /* CHANGES
not be misrepresented as being the original software. 0.9.0 -- original version.
0.9.0a/b -- no changes in this file.
4. The name of the author may not be used to endorse or promote 0.9.0c -- changed setting of nGroups in sendMTFValues()
products derived from this software without specific prior written so as to do a bit better on small files
permission. */
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
Julian Seward, Cambridge, UK.
jseward@bzip.org
bzip2/libbzip2 version 1.0 of 21 March 2000
This program is based on (at least) the work of:
Mike Burrows
David Wheeler
Peter Fenwick
Alistair Moffat
Radford Neal
Ian H. Witten
Robert Sedgewick
Jon L. Bentley
For more information on these sources, see the manual.
--*/
/*--
CHANGES
~~~~~~~
0.9.0 -- original version.
0.9.0a/b -- no changes in this file.
0.9.0c
* changed setting of nGroups in sendMTFValues() so as to
do a bit better on small files
--*/
#include "bzlib_private.h" #include "bzlib_private.h"

60
commands/bzip2/crctable.c → dist/bzip2/crctable.c vendored
View file

@ -4,59 +4,19 @@
/*--- crctable.c ---*/ /*--- crctable.c ---*/
/*-------------------------------------------------------------*/ /*-------------------------------------------------------------*/
/*-- /* ------------------------------------------------------------------
This file is a part of bzip2 and/or libbzip2, a program and This file is part of bzip2/libbzip2, a program and library for
library for lossless, block-sorting data compression. lossless, block-sorting data compression.
Copyright (C) 1996-2005 Julian R Seward. All rights reserved. bzip2/libbzip2 version 1.0.5 of 10 December 2007
Copyright (C) 1996-2007 Julian Seward <jseward@bzip.org>
Redistribution and use in source and binary forms, with or without Please read the WARNING, DISCLAIMER and PATENTS sections in the
modification, are permitted provided that the following conditions README file.
are met:
1. Redistributions of source code must retain the above copyright This program is released under the terms of the license contained
notice, this list of conditions and the following disclaimer. in the file LICENSE.
------------------------------------------------------------------ */
2. The origin of this software must not be misrepresented; you must
not claim that you wrote the original software. If you use this
software in a product, an acknowledgment in the product
documentation would be appreciated but is not required.
3. Altered source versions must be plainly marked as such, and must
not be misrepresented as being the original software.
4. The name of the author may not be used to endorse or promote
products derived from this software without specific prior written
permission.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
Julian Seward, Cambridge, UK.
jseward@bzip.org
bzip2/libbzip2 version 1.0 of 21 March 2000
This program is based on (at least) the work of:
Mike Burrows
David Wheeler
Peter Fenwick
Alistair Moffat
Radford Neal
Ian H. Witten
Robert Sedgewick
Jon L. Bentley
For more information on these sources, see the manual.
--*/
#include "bzlib_private.h" #include "bzlib_private.h"

67
commands/bzip2/decompress.c → dist/bzip2/decompress.c vendored
View file

@ -4,59 +4,19 @@
/*--- decompress.c ---*/ /*--- decompress.c ---*/
/*-------------------------------------------------------------*/ /*-------------------------------------------------------------*/
/*-- /* ------------------------------------------------------------------
This file is a part of bzip2 and/or libbzip2, a program and This file is part of bzip2/libbzip2, a program and library for
library for lossless, block-sorting data compression. lossless, block-sorting data compression.
Copyright (C) 1996-2005 Julian R Seward. All rights reserved. bzip2/libbzip2 version 1.0.5 of 10 December 2007
Copyright (C) 1996-2007 Julian Seward <jseward@bzip.org>
Redistribution and use in source and binary forms, with or without Please read the WARNING, DISCLAIMER and PATENTS sections in the
modification, are permitted provided that the following conditions README file.
are met:
1. Redistributions of source code must retain the above copyright This program is released under the terms of the license contained
notice, this list of conditions and the following disclaimer. in the file LICENSE.
------------------------------------------------------------------ */
2. The origin of this software must not be misrepresented; you must
not claim that you wrote the original software. If you use this
software in a product, an acknowledgment in the product
documentation would be appreciated but is not required.
3. Altered source versions must be plainly marked as such, and must
not be misrepresented as being the original software.
4. The name of the author may not be used to endorse or promote
products derived from this software without specific prior written
permission.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
Julian Seward, Cambridge, UK.
jseward@bzip.org
bzip2/libbzip2 version 1.0 of 21 March 2000
This program is based on (at least) the work of:
Mike Burrows
David Wheeler
Peter Fenwick
Alistair Moffat
Radford Neal
Ian H. Witten
Robert Sedgewick
Jon L. Bentley
For more information on these sources, see the manual.
--*/
#include "bzlib_private.h" #include "bzlib_private.h"
@ -421,6 +381,13 @@ Int32 BZ2_decompress ( DState* s )
es = -1; es = -1;
N = 1; N = 1;
do { do {
/* Check that N doesn't get too big, so that es doesn't
go negative. The maximum value that can be
RUNA/RUNB encoded is equal to the block size (post
the initial RLE), viz, 900k, so bounding N at 2
million should guard against overflow without
rejecting any legitimate inputs. */
if (N >= 2*1024*1024) RETURN(BZ_DATA_ERROR);
if (nextSym == BZ_RUNA) es = es + (0+1) * N; else if (nextSym == BZ_RUNA) es = es + (0+1) * N; else
if (nextSym == BZ_RUNB) es = es + (1+1) * N; if (nextSym == BZ_RUNB) es = es + (1+1) * N;
N = N * 2; N = N * 2;

5
commands/bzip2/dlltest.c → dist/bzip2/dlltest.c vendored
View file

@ -1,9 +1,8 @@
/* /*
minibz2 minibz2
libbz2.dll test program. libbz2.dll test program.
by Yoshioka Tsuneo(QWF00133@nifty.ne.jp/tsuneo-y@is.aist-nara.ac.jp) by Yoshioka Tsuneo (tsuneo@rr.iij4u.or.jp)
This file is Public Domain. This file is Public Domain. Welcome any email to me.
welcome any email to me.
usage: minibz2 [-d] [-{1,2,..9}] [[srcfilename] destfilename] usage: minibz2 [-d] [-{1,2,..9}] [[srcfilename] destfilename]
*/ */

0
commands/bzip2/dlltest.dsp → dist/bzip2/dlltest.dsp vendored
View file

6
commands/bzip2/entities.xml → dist/bzip2/entities.xml vendored
View file

@ -1,9 +1,9 @@
<!-- misc. strings --> <!-- misc. strings -->
<!ENTITY bz-url "http://www.bzip.org"> <!ENTITY bz-url "http://www.bzip.org">
<!ENTITY bz-email "jseward@bzip.org"> <!ENTITY bz-email "jseward@bzip.org">
<!ENTITY bz-lifespan "1996-2005"> <!ENTITY bz-lifespan "1996-2007">
<!ENTITY bz-version "1.0.3"> <!ENTITY bz-version "1.0.5">
<!ENTITY bz-date "15 February 2005"> <!ENTITY bz-date "10 December 2007">
<!ENTITY manual-title "bzip2 Manual"> <!ENTITY manual-title "bzip2 Manual">

15
commands/bzip2/format.pl → dist/bzip2/format.pl vendored
View file

@ -1,4 +1,19 @@
#!/usr/bin/perl -w #!/usr/bin/perl -w
#
# ------------------------------------------------------------------
# This file is part of bzip2/libbzip2, a program and library for
# lossless, block-sorting data compression.
#
# bzip2/libbzip2 version 1.0.5 of 10 December 2007
# Copyright (C) 1996-2007 Julian Seward <jseward@bzip.org>
#
# Please read the WARNING, DISCLAIMER and PATENTS sections in the
# README file.
#
# This program is released under the terms of the license contained
# in the file LICENSE.
# ------------------------------------------------------------------
#
use strict; use strict;
# get command line values: # get command line values:

60
commands/bzip2/huffman.c → dist/bzip2/huffman.c vendored
View file

@ -4,59 +4,19 @@
/*--- huffman.c ---*/ /*--- huffman.c ---*/
/*-------------------------------------------------------------*/ /*-------------------------------------------------------------*/
/*-- /* ------------------------------------------------------------------
This file is a part of bzip2 and/or libbzip2, a program and This file is part of bzip2/libbzip2, a program and library for
library for lossless, block-sorting data compression. lossless, block-sorting data compression.
Copyright (C) 1996-2005 Julian R Seward. All rights reserved. bzip2/libbzip2 version 1.0.5 of 10 December 2007
Copyright (C) 1996-2007 Julian Seward <jseward@bzip.org>
Redistribution and use in source and binary forms, with or without Please read the WARNING, DISCLAIMER and PATENTS sections in the
modification, are permitted provided that the following conditions README file.
are met:
1. Redistributions of source code must retain the above copyright This program is released under the terms of the license contained
notice, this list of conditions and the following disclaimer. in the file LICENSE.
------------------------------------------------------------------ */
2. The origin of this software must not be misrepresented; you must
not claim that you wrote the original software. If you use this
software in a product, an acknowledgment in the product
documentation would be appreciated but is not required.
3. Altered source versions must be plainly marked as such, and must
not be misrepresented as being the original software.
4. The name of the author may not be used to endorse or promote
products derived from this software without specific prior written
permission.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
Julian Seward, Cambridge, UK.
jseward@bzip.org
bzip2/libbzip2 version 1.0 of 21 March 2000
This program is based on (at least) the work of:
Mike Burrows
David Wheeler
Peter Fenwick
Alistair Moffat
Radford Neal
Ian H. Witten
Robert Sedgewick
Jon L. Bentley
For more information on these sources, see the manual.
--*/
#include "bzlib_private.h" #include "bzlib_private.h"

0
commands/bzip2/libbz2.def → dist/bzip2/libbz2.def vendored
View file

0
commands/bzip2/libbz2.dsp → dist/bzip2/libbz2.dsp vendored
View file

0
commands/bzip2/makefile.msc → dist/bzip2/makefile.msc vendored
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2540
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File diff suppressed because it is too large Load diff

2964
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31
dist/bzip2/mk251.c vendored Normal file
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@ -0,0 +1,31 @@
/* Spew out a long sequence of the byte 251. When fed to bzip2
versions 1.0.0 or 1.0.1, causes it to die with internal error
1007 in blocksort.c. This assertion misses an extremely rare
case, which is fixed in this version (1.0.2) and above.
*/
/* ------------------------------------------------------------------
This file is part of bzip2/libbzip2, a program and library for
lossless, block-sorting data compression.
bzip2/libbzip2 version 1.0.5 of 10 December 2007
Copyright (C) 1996-2007 Julian Seward <jseward@bzip.org>
Please read the WARNING, DISCLAIMER and PATENTS sections in the
README file.
This program is released under the terms of the license contained
in the file LICENSE.
------------------------------------------------------------------ */
#include <stdio.h>
int main ()
{
int i;
for (i = 0; i < 48500000 ; i++)
putchar(251);
return 0;
}

60
commands/bzip2/randtable.c → dist/bzip2/randtable.c vendored
View file

@ -4,59 +4,19 @@
/*--- randtable.c ---*/ /*--- randtable.c ---*/
/*-------------------------------------------------------------*/ /*-------------------------------------------------------------*/
/*-- /* ------------------------------------------------------------------
This file is a part of bzip2 and/or libbzip2, a program and This file is part of bzip2/libbzip2, a program and library for
library for lossless, block-sorting data compression. lossless, block-sorting data compression.
Copyright (C) 1996-2005 Julian R Seward. All rights reserved. bzip2/libbzip2 version 1.0.5 of 10 December 2007
Copyright (C) 1996-2007 Julian Seward <jseward@bzip.org>
Redistribution and use in source and binary forms, with or without Please read the WARNING, DISCLAIMER and PATENTS sections in the
modification, are permitted provided that the following conditions README file.
are met:
1. Redistributions of source code must retain the above copyright This program is released under the terms of the license contained
notice, this list of conditions and the following disclaimer. in the file LICENSE.
------------------------------------------------------------------ */
2. The origin of this software must not be misrepresented; you must
not claim that you wrote the original software. If you use this
software in a product, an acknowledgment in the product
documentation would be appreciated but is not required.
3. Altered source versions must be plainly marked as such, and must
not be misrepresented as being the original software.
4. The name of the author may not be used to endorse or promote
products derived from this software without specific prior written
permission.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
Julian Seward, Cambridge, UK.
jseward@bzip.org
bzip2/libbzip2 version 1.0 of 21 March 2000
This program is based on (at least) the work of:
Mike Burrows
David Wheeler
Peter Fenwick
Alistair Moffat
Radford Neal
Ian H. Witten
Robert Sedgewick
Jon L. Bentley
For more information on these sources, see the manual.
--*/
#include "bzlib_private.h" #include "bzlib_private.h"

0
commands/bzip2/sample1.bz2 → dist/bzip2/sample1.bz2 vendored
View file

BIN
dist/bzip2/sample1.rb2 vendored Normal file
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Binary file not shown.

0
commands/bzip2/sample1.ref → dist/bzip2/sample1.ref vendored
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BIN
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0
commands/bzip2/sample2.bz2 → dist/bzip2/sample2.bz2 vendored
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BIN
dist/bzip2/sample2.rb2 vendored Normal file
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0
commands/bzip2/sample2.ref → dist/bzip2/sample2.ref vendored
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BIN
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0
commands/bzip2/sample3.bz2 → dist/bzip2/sample3.bz2 vendored
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BIN
dist/bzip2/sample3.rb2 vendored Normal file
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Binary file not shown.

0
commands/bzip2/sample3.ref → dist/bzip2/sample3.ref vendored
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30007
dist/bzip2/sample3.tst vendored Normal file
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File diff suppressed because it is too large Load diff

15
commands/bzip2/spewG.c → dist/bzip2/spewG.c vendored
View file

@ -9,6 +9,21 @@
(but is otherwise harmless). (but is otherwise harmless).
*/ */
/* ------------------------------------------------------------------
This file is part of bzip2/libbzip2, a program and library for
lossless, block-sorting data compression.
bzip2/libbzip2 version 1.0.5 of 10 December 2007
Copyright (C) 1996-2007 Julian Seward <jseward@bzip.org>
Please read the WARNING, DISCLAIMER and PATENTS sections in the
README file.
This program is released under the terms of the license contained
in the file LICENSE.
------------------------------------------------------------------ */
#define _FILE_OFFSET_BITS 64 #define _FILE_OFFSET_BITS 64
#include <stdio.h> #include <stdio.h>

17
commands/bzip2/unzcrash.c → dist/bzip2/unzcrash.c vendored
View file

@ -8,11 +8,26 @@
This should not cause any invalid memory accesses. If it does, This should not cause any invalid memory accesses. If it does,
I want to know about it! I want to know about it!
p.s. As you can see from the above description, the process is PS. As you can see from the above description, the process is
incredibly slow. A file of size eg 5KB will cause it to run for incredibly slow. A file of size eg 5KB will cause it to run for
many hours. many hours.
*/ */
/* ------------------------------------------------------------------
This file is part of bzip2/libbzip2, a program and library for
lossless, block-sorting data compression.
bzip2/libbzip2 version 1.0.5 of 10 December 2007
Copyright (C) 1996-2007 Julian Seward <jseward@bzip.org>
Please read the WARNING, DISCLAIMER and PATENTS sections in the
README file.
This program is released under the terms of the license contained
in the file LICENSE.
------------------------------------------------------------------ */
#include <stdio.h> #include <stdio.h>
#include <assert.h> #include <assert.h>
#include "bzlib.h" #include "bzlib.h"

9
dist/bzip2/words0 vendored Normal file
View file

@ -0,0 +1,9 @@
If compilation produces errors, or a large number of warnings,
please read README.COMPILATION.PROBLEMS -- you might be able to
adjust the flags in this Makefile to improve matters.
Also in README.COMPILATION.PROBLEMS are some hints that may help
if your build produces an executable which is unable to correctly
handle so-called 'large files' -- files of size 2GB or more.

0
commands/bzip2/words1 → dist/bzip2/words1 vendored
View file

2
commands/bzip2/words2 → dist/bzip2/words2 vendored
View file

@ -1,5 +1,5 @@
Checking test results. If any of the four "cmp"s which follow Checking test results. If any of the four "cmp"s which follow
report any differences, something is wrong. If you can't easily report any differences, something is wrong. If you can't easily
figure out what, please let me know (jseward@acm.org). figure out what, please let me know (jseward@bzip.org).

13
commands/bzip2/words3 → dist/bzip2/words3 vendored
View file

@ -1,22 +1,29 @@
If you got this far and the "cmp"s didn't complain, it looks If you got this far and the 'cmp's didn't complain, it looks
like you're in business. like you're in business.
To install in /usr/bin, /usr/lib, /usr/man and /usr/include, type To install in /usr/local/bin, /usr/local/lib, /usr/local/man and
/usr/local/include, type
make install make install
To install somewhere else, eg, /xxx/yyy/{bin,lib,man,include}, type To install somewhere else, eg, /xxx/yyy/{bin,lib,man,include}, type
make install PREFIX=/xxx/yyy make install PREFIX=/xxx/yyy
If you are (justifiably) paranoid and want to see what 'make install' If you are (justifiably) paranoid and want to see what 'make install'
is going to do, you can first do is going to do, you can first do
make -n install or make -n install or
make -n install PREFIX=/xxx/yyy respectively. make -n install PREFIX=/xxx/yyy respectively.
The -n instructs make to show the commands it would execute, but The -n instructs make to show the commands it would execute, but
not actually execute them. not actually execute them.
Instructions for use are in the preformatted manual page, in the file Instructions for use are in the preformatted manual page, in the file
bzip2.txt. For more detailed documentation, read the full manual. bzip2.txt. For more detailed documentation, read the full manual.
It is available in Postscript form (manual.ps), PDF form (manual.pdf), It is available in Postscript form (manual.ps), PDF form (manual.pdf),
and HTML form (manual_toc.html). and HTML form (manual.html).
You can also do "bzip2 --help" to see some helpful information. You can also do "bzip2 --help" to see some helpful information.
"bzip2 -L" displays the software license. "bzip2 -L" displays the software license.

19
commands/bzip2/xmlproc.sh → dist/bzip2/xmlproc.sh vendored
View file

@ -1,5 +1,20 @@
#!/bin/bash #!/bin/bash
# see the README in this directory for usage etc. # see the README file for usage etc.
#
# ------------------------------------------------------------------
# This file is part of bzip2/libbzip2, a program and library for
# lossless, block-sorting data compression.
#
# bzip2/libbzip2 version 1.0.5 of 10 December 2007
# Copyright (C) 1996-2007 Julian Seward <jseward@bzip.org>
#
# Please read the WARNING, DISCLAIMER and PATENTS sections in the
# README file.
#
# This program is released under the terms of the license contained
# in the file LICENSE.
# ----------------------------------------------------------------
usage() { usage() {
echo ''; echo '';
@ -45,7 +60,7 @@ export XML_CATALOG_FILES=/etc/xml/catalog
# post-processing tidy up # post-processing tidy up
cleanup() { cleanup() {
echo "Cleaning up: # $@" echo "Cleaning up: $@"
while [ $# != 0 ] while [ $# != 0 ]
do do
arg=$1; shift; arg=$1; shift;

2
etc/mtree/minix.tree
View file

@ -74,6 +74,8 @@
755 root operator /usr/run 755 root operator /usr/run
755 root operator /usr/share 755 root operator /usr/share
755 root operator /usr/share/doc 755 root operator /usr/share/doc
755 root operator /usr/share/doc/html
755 root operator /usr/share/doc/html/bzip2
755 root operator /usr/share/doc/psd 755 root operator /usr/share/doc/psd
755 root operator /usr/share/doc/psd/19.curses 755 root operator /usr/share/doc/psd/19.curses
755 root operator /usr/share/mk 755 root operator /usr/share/mk

4
lib/Makefile
View file

@ -17,14 +17,14 @@ LIBMINLIB_DIR?=
LIBASYN_DIR?= LIBASYN_DIR?=
SUBDIR= csu ${LIBCOMPAT_DIR} ${LIBC_DIR} libdriver libnetdriver \ SUBDIR= csu ${LIBCOMPAT_DIR} ${LIBC_DIR} libdriver libnetdriver \
libedit ${LIBM_DIR} libsys libtimers ${LIBUTIL_DIR} libbz2 libl libhgfs \ libedit ${LIBM_DIR} libsys libtimers ${LIBUTIL_DIR} libl libhgfs \
libz libfetch libarchive libvtreefs libaudiodriver libmthread \ libz libfetch libarchive libvtreefs libaudiodriver libmthread \
libexec libdevman libusb ${LIBMINLIB_DIR} ${LIBASYN_DIR} \ libexec libdevman libusb ${LIBMINLIB_DIR} ${LIBASYN_DIR} \
libddekit libminixfs libbdev libddekit libminixfs libbdev
.if defined(NBSD_LIBC) && (${NBSD_LIBC} != "no") .if defined(NBSD_LIBC) && (${NBSD_LIBC} != "no")
SUBDIR+= libelf libminc libcrypt libterminfo libcurses libvassert libutil \ SUBDIR+= libelf libminc libcrypt libterminfo libcurses libvassert libutil \
libpuffs librefuse libpuffs librefuse libbz2
.endif .endif
.if ${COMPILER_TYPE} == "ack" .if ${COMPILER_TYPE} == "ack"

40
lib/libbz2/Makefile
View file

@ -1,18 +1,40 @@
# $NetBSD: Makefile,v 1.14 2008/08/29 00:02:22 gmcgarry Exp $
.if defined(__MINIX)
# ssp-buffer-size=0, __SSP_FORTIFY_LEVEL=0
USE_FORT=no
.else
USE_FORT?= yes # data driven bugs?
.endif
NOMAN= # defined
.include <bsd.own.mk> .include <bsd.own.mk>
LIB= bz2 LIB= bz2
BZ2DIR= ${MINIXSRCDIR}/commands/bzip2 DIST= ${NETBSDSRCDIR}/dist/bzip2
.PATH: ${BZ2DIR} .PATH: ${DIST}
SRCS= bzlib.c blocksort.c compress.c crctable.c decompress.c \ SRCS= blocksort.c huffman.c crctable.c randtable.c compress.c \
huffman.c randtable.c decompress.c bzlib.c
CPPFLAGS+= -I ${BZ2DIR}
INCS= bzlib.h INCS= bzlib.h
INCSDIR= /usr/include
.if (${NBSD_LIBC} != "no") # XXX huffman.c gets mis-compiled with 2.95.3
INCSDIR= /usr/include .if ${MACHINE_ARCH} == "vax"
.else COPTS+= -O0
INCSDIR= /usr/include.ack
.endif .endif
# XXX blocksort.c gets mis-compiled with 4.1
.if (${MACHINE_ARCH} == "sh3el" || ${MACHINE_ARCH} == "sh3eb") && \
(defined(HAVE_GCC) && ${HAVE_GCC} == 4)
COPTS.blocksort.c+= -fno-loop-optimize
.endif
.if ${MKSHARE} != "no"
FILESDIR= ${HTMLDOCDIR}/bzip2
FILES= manual.html
.endif
.include <bsd.info.mk>
.include <bsd.lib.mk> .include <bsd.lib.mk>

5
lib/libbz2/shlib_version Normal file
View file

@ -0,0 +1,5 @@
# $NetBSD: shlib_version,v 1.4 2008/03/19 17:10:52 bjs Exp $
# Remember to update distrib/sets/lists/base/shl.* when changing
#
major=1
minor=1

2
share/mk/Makefile
View file

@ -4,7 +4,7 @@ NOOBJ= # defined
.if ${MKSHARE} != "no" .if ${MKSHARE} != "no"
FILES= bsd.dep.mk bsd.files.mk \ FILES= bsd.dep.mk bsd.files.mk \
bsd.inc.mk \ bsd.inc.mk bsd.info.mk \
bsd.init.mk bsd.kinc.mk bsd.klinks.mk bsd.lib.mk \ bsd.init.mk bsd.kinc.mk bsd.klinks.mk bsd.lib.mk \
bsd.links.mk bsd.man.mk bsd.obj.mk bsd.own.mk \ bsd.links.mk bsd.man.mk bsd.obj.mk bsd.own.mk \
bsd.prog.mk bsd.subdir.mk bsd.sys.mk bsd.doc.mk \ bsd.prog.mk bsd.subdir.mk bsd.sys.mk bsd.doc.mk \

92
share/mk/bsd.info.mk Normal file
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@ -0,0 +1,92 @@
# $NetBSD: bsd.info.mk,v 1.39 2009/02/28 19:18:52 joerg Exp $
.include <bsd.init.mk>
##### Basic targets
cleandir: cleaninfo
realinstall: infoinstall
##### Default values
INFOFLAGS?=
INFOFILES?=
##### Build rules
.if ${MKINFO} != "no"
INFOFILES= ${TEXINFO:C/\.te?xi(nfo)?$/.info/}
realall: ${INFOFILES}
.NOPATH: ${INFOFILES}
.SUFFIXES: .txi .texi .texinfo .info
.txi.info .texi.info .texinfo.info:
${_MKTARGET_CREATE}
${TOOL_MAKEINFO} ${INFOFLAGS} --no-split --no-version-header -o ${.TARGET} ${.IMPSRC}
.endif # ${MKINFO} != "no"
##### Install rules
infoinstall:: # ensure existence
.PHONY: infoinstall
.if ${MKINFO} != "no"
INFODIRFILE=${DESTDIR}${INFODIR}/dir
# serialize access to ${INFODIRFILE}; needed for parallel makes
__infoinstall: .USE
${_MKTARGET_INSTALL}
${INSTALL_FILE} \
-o ${INFOOWN_${.ALLSRC:T}:U${INFOOWN}} \
-g ${INFOGRP_${.ALLSRC:T}:U${INFOGRP}} \
-m ${INFOMODE_${.ALLSRC:T}:U${INFOMODE}} \
${.ALLSRC} ${.TARGET}
@[ -f ${INFODIRFILE} ] && \
while ! ln ${INFODIRFILE} ${INFODIRFILE}.lock 2> /dev/null; \
do sleep 1; done; \
${TOOL_INSTALL_INFO} -d ${INFODIRFILE} -r ${.TARGET} 2> /dev/null; \
${TOOL_INSTALL_INFO} -d ${INFODIRFILE} ${.TARGET}; \
rm -f ${INFODIRFILE}.lock
.for F in ${INFOFILES:O:u}
_FDIR:= ${INFODIR_${F}:U${INFODIR}} # dir overrides
_FNAME:= ${INFONAME_${F}:U${INFONAME:U${F:T}}} # name overrides
_F:= ${DESTDIR}${_FDIR}/${_FNAME} # installed path
.if ${MKUPDATE} == "no"
${_F}! ${F} __infoinstall # install rule
.if !defined(BUILD) && !make(all) && !make(${F})
${_F}! .MADE # no build at install
.endif
.else
${_F}: ${F} __infoinstall # install rule
.if !defined(BUILD) && !make(all) && !make(${F})
${_F}: .MADE # no build at install
.endif
.endif
infoinstall:: ${_F}
.PRECIOUS: ${_F} # keep if install fails
.endfor
.undef _FDIR
.undef _FNAME
.undef _F
.endif # ${MKINFO} != "no"
##### Clean rules
CLEANFILES+= ${INFOFILES}
cleaninfo: .PHONY
.if !empty(CLEANFILES)
rm -f ${CLEANFILES}
.endif
##### Pull in related .mk logic
.include <bsd.obj.mk>
.include <bsd.sys.mk>
${TARGETS}: # ensure existence

4
tools/nbsd_ports
View file

@ -6,6 +6,7 @@ lib/libterminfo src/lib/libterminfo
lib/libcurses src/lib/libcurses lib/libcurses src/lib/libcurses
lib/libutil src/lib/libutil lib/libutil src/lib/libutil
common/lib/libutil src/common/lib/libutil common/lib/libutil src/common/lib/libutil
lib/libbz2 src/lib/libbz2
nbsd_include src/include nbsd_include src/include
bin/mkdir src/bin/mkdir bin/mkdir src/bin/mkdir
usr.bin/chpass src/usr.bin/chpass usr.bin/chpass src/usr.bin/chpass
@ -24,4 +25,7 @@ usr.bin/mdocml src/external/bsd/mdocml
usr.sbin/pwd_mkdb src/usr.sbin/pwd_mkdb usr.sbin/pwd_mkdb src/usr.sbin/pwd_mkdb
usr.sbin/user src/usr.sbin/user usr.sbin/user src/usr.sbin/user
usr.sbin/vipw src/usr.sbin/vipw usr.sbin/vipw src/usr.sbin/vipw
usr.bin/bzip2 src/usr.bin/bzip2
usr.bin/bzip2recover src/usr.bin/bzip2recover
libexec/makewhatis src/libexec/makewhatis libexec/makewhatis src/libexec/makewhatis
dist/bzip2 dist/bzip2

2
usr.bin/Makefile
View file

@ -4,7 +4,7 @@
# NetBSD imports # NetBSD imports
SUBDIR= indent m4 stat tic sed mkdep uniq seq man mdocml \ SUBDIR= indent m4 stat tic sed mkdep uniq seq man mdocml \
apropos chpass newgrp passwd apropos chpass newgrp passwd bzip2 bzip2recover
# Non-NetBSD imports # Non-NetBSD imports
SUBDIR+= ministat SUBDIR+= ministat

39
usr.bin/bzip2/Makefile Normal file
View file

@ -0,0 +1,39 @@
# $NetBSD: Makefile,v 1.10 2007/05/28 12:06:24 tls Exp $
.include <bsd.own.mk> # for MKDYNAMICROOT definition
.if defined(__MINIX)
MKDYNAMICROOT= no
SMALLPROG= yes
USE_FORT=no # __SSP_FORTIFY_LEVEL=0
.else
USE_FORT?= yes # data-driven bugs?
.endif
PROG= bzip2
LDDIR!= cd ${NETBSDSRCDIR}/lib/libbz2 && ${PRINTOBJDIR}
LDADD+= -L${LDDIR} -lbz2
DPADD+= ${LIBBZ2}
.if (${MKDYNAMICROOT} == "no")
LDSTATIC?= -static
.endif
.ifdef SMALLPROG
CPPFLAGS+= -DSMALL
.endif
DIST= ${NETBSDSRCDIR}/dist/bzip2
.PATH: ${DIST}
MLINKS+= bzip2.1 bunzip2.1\
bzip2.1 bzcat.1\
bzip2.1 bzip2recover.1
LINKS+= ${BINDIR}/bzip2 ${BINDIR}/bunzip2
LINKS+= ${BINDIR}/bzip2 ${BINDIR}/bzcat
test:
make -C dist/bzip2 test
install-extra:
make -C dist/bzip2 install
.include <bsd.prog.mk>

25
usr.bin/bzip2recover/Makefile Normal file
View file

@ -0,0 +1,25 @@
# $NetBSD: Makefile,v 1.8 2007/05/28 12:06:25 tls Exp $
.if defined(__MINIX)
USE_FORT=no # __SSP_FORTIFY_LEVEL=0
.else
USE_FORT?= yes # data-driven bugs?
.endif
NOMAN= # defined
.include <bsd.own.mk> # for MKDYNAMICROOT definition
.if defined(__MINIX)
MKDYNAMICROOT= no
.endif
PROG= bzip2recover
.if (${MKDYNAMICROOT} == "no")
LDSTATIC?= -static
.endif
DIST= ${NETBSDSRCDIR}/dist/bzip2
.PATH: ${DIST}
.include <bsd.prog.mk>