Added bzip2 1.0.2. Expander has now built in rules and icons for it.
git-svn-id: file:///srv/svn/repos/haiku/trunk/current@7006 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
@@ -102,3 +102,4 @@ SubInclude OBOS_TOP src apps bin traceroute ;
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SubInclude OBOS_TOP src apps bin unzip ;
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SubInclude OBOS_TOP src apps bin zip ;
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SubInclude OBOS_TOP src apps bin gzip ;
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SubInclude OBOS_TOP src apps bin bzip2 ;
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@@ -0,0 +1,42 @@
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SubDir OBOS_TOP src apps bin bzip2 ;
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# set some additional defines
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{
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SubDirCcFlags -Wall -Winline -O2 -fomit-frame-pointer -fno-strength-reduce -D_FILE_OFFSET_BITS=64 ;
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}
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BinCommand bzip2 :
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blocksort.c
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huffman.c
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crctable.c
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randtable.c
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compress.c
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decompress.c
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bzlib.c
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bzip2.c
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;
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BinCommand bzip2recover :
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bzip2recover.c
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;
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{
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MakeLocate bunzip2 : $(OBOS_BIN_DIR) ;
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RelSymLink bunzip2 : bzip2 ;
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MakeLocate bzcat : $(OBOS_BIN_DIR) ;
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RelSymLink bzcat : bzip2 ;
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MakeLocate <bin>bzdiff : $(OBOS_BIN_DIR) ;
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Shell <bin>bzdiff : bzdiff ;
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MakeLocate bzcmp : $(OBOS_BIN_DIR) ;
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RelSymLink bzcmp : <bin>bzdiff ;
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MakeLocate <bin>bzgrep : $(OBOS_BIN_DIR) ;
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Shell <bin>bzgrep : bzgrep ;
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MakeLocate bzegrep : $(OBOS_BIN_DIR) ;
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RelSymLink bzegrep : <bin>bzgrep ;
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MakeLocate bzfgrep : $(OBOS_BIN_DIR) ;
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RelSymLink bzfgrep : <bin>bzgrep ;
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MakeLocate <bin>bzmore : $(OBOS_BIN_DIR) ;
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Shell <bin>bzmore : bzmore ;
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MakeLocate bzless : $(OBOS_BIN_DIR) ;
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RelSymLink bzless : <bin>bzmore ;
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}
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@@ -0,0 +1,39 @@
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This program, "bzip2" and associated library "libbzip2", are
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copyright (C) 1996-2002 Julian R Seward. All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions
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are met:
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1. Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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2. The origin of this software must not be misrepresented; you must
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not claim that you wrote the original software. If you use this
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software in a product, an acknowledgment in the product
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documentation would be appreciated but is not required.
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3. Altered source versions must be plainly marked as such, and must
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not be misrepresented as being the original software.
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4. The name of the author may not be used to endorse or promote
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products derived from this software without specific prior written
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permission.
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THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
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OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
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DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
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GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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Julian Seward, Cambridge, UK.
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[email protected]
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bzip2/libbzip2 version 1.0.2 of 30 December 2001
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File diff suppressed because it is too large
Load Diff
@@ -0,0 +1,76 @@
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#!/bin/sh
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# sh is buggy on RS/6000 AIX 3.2. Replace above line with #!/bin/ksh
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# Bzcmp/diff wrapped for bzip2,
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# adapted from zdiff by Philippe Troin <[email protected]> for Debian GNU/Linux.
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# Bzcmp and bzdiff are used to invoke the cmp or the diff pro-
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# gram on compressed files. All options specified are passed
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# directly to cmp or diff. If only 1 file is specified, then
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# the files compared are file1 and an uncompressed file1.gz.
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# If two files are specified, then they are uncompressed (if
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# necessary) and fed to cmp or diff. The exit status from cmp
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# or diff is preserved.
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PATH="/usr/bin:$PATH"; export PATH
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prog=`echo $0 | sed 's|.*/||'`
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case "$prog" in
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*cmp) comp=${CMP-cmp} ;;
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*) comp=${DIFF-diff} ;;
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esac
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OPTIONS=
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FILES=
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for ARG
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do
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case "$ARG" in
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-*) OPTIONS="$OPTIONS $ARG";;
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*) if test -f "$ARG"; then
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FILES="$FILES $ARG"
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else
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echo "${prog}: $ARG not found or not a regular file"
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exit 1
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fi ;;
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esac
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done
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if test -z "$FILES"; then
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echo "Usage: $prog [${comp}_options] file [file]"
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exit 1
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fi
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tmp=`tempfile -d /tmp -p bz` || {
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echo 'cannot create a temporary file' >&2
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exit 1
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}
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set $FILES
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if test $# -eq 1; then
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FILE=`echo "$1" | sed 's/.bz2$//'`
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bzip2 -cd "$FILE.bz2" | $comp $OPTIONS - "$FILE"
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STAT="$?"
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elif test $# -eq 2; then
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case "$1" in
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*.bz2)
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case "$2" in
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*.bz2)
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F=`echo "$2" | sed 's|.*/||;s|.bz2$||'`
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bzip2 -cdfq "$2" > $tmp
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bzip2 -cdfq "$1" | $comp $OPTIONS - $tmp
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STAT="$?"
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/bin/rm -f $tmp;;
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*) bzip2 -cdfq "$1" | $comp $OPTIONS - "$2"
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STAT="$?";;
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esac;;
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*) case "$2" in
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*.bz2)
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bzip2 -cdfq "$2" | $comp $OPTIONS "$1" -
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STAT="$?";;
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*) $comp $OPTIONS "$1" "$2"
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STAT="$?";;
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esac;;
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esac
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exit "$STAT"
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else
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echo "Usage: $prog [${comp}_options] file [file]"
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exit 1
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fi
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@@ -0,0 +1,71 @@
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#!/bin/sh
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# Bzgrep wrapped for bzip2,
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# adapted from zgrep by Philippe Troin <[email protected]> for Debian GNU/Linux.
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## zgrep notice:
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## zgrep -- a wrapper around a grep program that decompresses files as needed
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## Adapted from a version sent by Charles Levert <[email protected]>
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PATH="/usr/bin:$PATH"; export PATH
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prog=`echo $0 | sed 's|.*/||'`
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case "$prog" in
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*egrep) grep=${EGREP-egrep} ;;
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*fgrep) grep=${FGREP-fgrep} ;;
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*) grep=${GREP-grep} ;;
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esac
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pat=""
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while test $# -ne 0; do
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case "$1" in
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-e | -f) opt="$opt $1"; shift; pat="$1"
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if test "$grep" = grep; then # grep is buggy with -e on SVR4
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grep=egrep
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fi;;
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-A | -B) opt="$opt $1 $2"; shift;;
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-*) opt="$opt $1";;
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*) if test -z "$pat"; then
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pat="$1"
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else
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break;
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fi;;
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esac
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shift
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done
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if test -z "$pat"; then
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echo "grep through bzip2 files"
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echo "usage: $prog [grep_options] pattern [files]"
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exit 1
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fi
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list=0
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silent=0
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op=`echo "$opt" | sed -e 's/ //g' -e 's/-//g'`
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case "$op" in
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*l*) list=1
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esac
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case "$op" in
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*h*) silent=1
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esac
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if test $# -eq 0; then
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bzip2 -cdfq | $grep $opt "$pat"
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exit $?
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fi
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res=0
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for i do
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if test -f "$i"; then :; else if test -f "$i.bz2"; then i="$i.bz2"; fi; fi
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if test $list -eq 1; then
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bzip2 -cdfq "$i" | $grep $opt "$pat" 2>&1 > /dev/null && echo $i
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r=$?
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elif test $# -eq 1 -o $silent -eq 1; then
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bzip2 -cdfq "$i" | $grep $opt "$pat"
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r=$?
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else
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bzip2 -cdfq "$i" | $grep $opt "$pat" | sed "s|^|${i}:|"
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r=$?
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fi
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test "$r" -ne 0 && res="$r"
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done
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exit $res
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File diff suppressed because it is too large
Load Diff
@@ -0,0 +1,546 @@
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/*-----------------------------------------------------------*/
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/*--- Block recoverer program for bzip2 ---*/
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/*--- bzip2recover.c ---*/
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/*-----------------------------------------------------------*/
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/*--
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This program is bzip2recover, a program to attempt data
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salvage from damaged files created by the accompanying
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bzip2-1.0 program.
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Copyright (C) 1996-2002 Julian R Seward. All rights reserved.
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Redistribution and use in source and binary forms, with or without
|
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modification, are permitted provided that the following conditions
|
||||
are met:
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||||
|
||||
1. Redistributions of source code must retain the above copyright
|
||||
notice, this list of conditions and the following disclaimer.
|
||||
|
||||
2. The origin of this software must not be misrepresented; you must
|
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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.
|
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|
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3. Altered source versions must be plainly marked as such, and must
|
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not be misrepresented as being the original software.
|
||||
|
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4. The name of the author may not be used to endorse or promote
|
||||
products derived from this software without specific prior written
|
||||
permission.
|
||||
|
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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
|
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NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
|
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SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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Julian Seward, Cambridge, UK.
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jseward@acm.org
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bzip2/libbzip2 version 1.0 of 21 March 2000
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--*/
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/*--
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This program is a complete hack and should be rewritten
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properly. It isn't very complicated.
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--*/
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#include <stdio.h>
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#include <errno.h>
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#include <stdlib.h>
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#include <string.h>
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/* This program records bit locations in the file to be recovered.
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That means that if 64-bit ints are not supported, we will not
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be able to recover .bz2 files over 512MB (2^32 bits) long.
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On GNU supported platforms, we take advantage of the 64-bit
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int support to circumvent this problem. Ditto MSVC.
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This change occurred in version 1.0.2; all prior versions have
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the 512MB limitation.
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*/
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#ifdef __GNUC__
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typedef unsigned long long int MaybeUInt64;
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# define MaybeUInt64_FMT "%Lu"
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#else
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#ifdef _MSC_VER
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typedef unsigned __int64 MaybeUInt64;
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# define MaybeUInt64_FMT "%I64u"
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#else
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typedef unsigned int MaybeUInt64;
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# define MaybeUInt64_FMT "%u"
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#endif
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#endif
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typedef unsigned int UInt32;
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typedef int Int32;
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typedef unsigned char UChar;
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typedef char Char;
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typedef unsigned char Bool;
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#define True ((Bool)1)
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#define False ((Bool)0)
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#define BZ_MAX_FILENAME 2000
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Char inFileName[BZ_MAX_FILENAME];
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Char outFileName[BZ_MAX_FILENAME];
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Char progName[BZ_MAX_FILENAME];
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MaybeUInt64 bytesOut = 0;
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MaybeUInt64 bytesIn = 0;
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/*---------------------------------------------------*/
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/*--- Header bytes ---*/
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/*---------------------------------------------------*/
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#define BZ_HDR_B 0x42 /* 'B' */
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#define BZ_HDR_Z 0x5a /* 'Z' */
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||||
#define BZ_HDR_h 0x68 /* 'h' */
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||||
#define BZ_HDR_0 0x30 /* '0' */
|
||||
|
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|
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/*---------------------------------------------------*/
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/*--- I/O errors ---*/
|
||||
/*---------------------------------------------------*/
|
||||
|
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/*---------------------------------------------*/
|
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void readError ( void )
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{
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fprintf ( stderr,
|
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"%s: I/O error reading `%s', possible reason follows.\n",
|
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progName, inFileName );
|
||||
perror ( progName );
|
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fprintf ( stderr, "%s: warning: output file(s) may be incomplete.\n",
|
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progName );
|
||||
exit ( 1 );
|
||||
}
|
||||
|
||||
|
||||
/*---------------------------------------------*/
|
||||
void writeError ( void )
|
||||
{
|
||||
fprintf ( stderr,
|
||||
"%s: I/O error reading `%s', possible reason follows.\n",
|
||||
progName, inFileName );
|
||||
perror ( progName );
|
||||
fprintf ( stderr, "%s: warning: output file(s) may be incomplete.\n",
|
||||
progName );
|
||||
exit ( 1 );
|
||||
}
|
||||
|
||||
|
||||
/*---------------------------------------------*/
|
||||
void mallocFail ( Int32 n )
|
||||
{
|
||||
fprintf ( stderr,
|
||||
"%s: malloc failed on request for %d bytes.\n",
|
||||
progName, n );
|
||||
fprintf ( stderr, "%s: warning: output file(s) may be incomplete.\n",
|
||||
progName );
|
||||
exit ( 1 );
|
||||
}
|
||||
|
||||
|
||||
/*---------------------------------------------*/
|
||||
void tooManyBlocks ( Int32 max_handled_blocks )
|
||||
{
|
||||
fprintf ( stderr,
|
||||
"%s: `%s' appears to contain more than %d blocks\n",
|
||||
progName, inFileName, max_handled_blocks );
|
||||
fprintf ( stderr,
|
||||
"%s: and cannot be handled. To fix, increase\n",
|
||||
progName );
|
||||
fprintf ( stderr,
|
||||
"%s: BZ_MAX_HANDLED_BLOCKS in bzip2recover.c, and recompile.\n",
|
||||
progName );
|
||||
exit ( 1 );
|
||||
}
|
||||
|
||||
|
||||
|
||||
/*---------------------------------------------------*/
|
||||
/*--- Bit stream I/O ---*/
|
||||
/*---------------------------------------------------*/
|
||||
|
||||
typedef
|
||||
struct {
|
||||
FILE* handle;
|
||||
Int32 buffer;
|
||||
Int32 buffLive;
|
||||
Char mode;
|
||||
}
|
||||
BitStream;
|
||||
|
||||
|
||||
/*---------------------------------------------*/
|
||||
BitStream* bsOpenReadStream ( FILE* stream )
|
||||
{
|
||||
BitStream *bs = malloc ( sizeof(BitStream) );
|
||||
if (bs == NULL) mallocFail ( sizeof(BitStream) );
|
||||
bs->handle = stream;
|
||||
bs->buffer = 0;
|
||||
bs->buffLive = 0;
|
||||
bs->mode = 'r';
|
||||
return bs;
|
||||
}
|
||||
|
||||
|
||||
/*---------------------------------------------*/
|
||||
BitStream* bsOpenWriteStream ( FILE* stream )
|
||||
{
|
||||
BitStream *bs = malloc ( sizeof(BitStream) );
|
||||
if (bs == NULL) mallocFail ( sizeof(BitStream) );
|
||||
bs->handle = stream;
|
||||
bs->buffer = 0;
|
||||
bs->buffLive = 0;
|
||||
bs->mode = 'w';
|
||||
return bs;
|
||||
}
|
||||
|
||||
|
||||
/*---------------------------------------------*/
|
||||
void bsPutBit ( BitStream* bs, Int32 bit )
|
||||
{
|
||||
if (bs->buffLive == 8) {
|
||||
Int32 retVal = putc ( (UChar) bs->buffer, bs->handle );
|
||||
if (retVal == EOF) writeError();
|
||||
bytesOut++;
|
||||
bs->buffLive = 1;
|
||||
bs->buffer = bit & 0x1;
|
||||
} else {
|
||||
bs->buffer = ( (bs->buffer << 1) | (bit & 0x1) );
|
||||
bs->buffLive++;
|
||||
};
|
||||
}
|
||||
|
||||
|
||||
/*---------------------------------------------*/
|
||||
/*--
|
||||
Returns 0 or 1, or 2 to indicate EOF.
|
||||
--*/
|
||||
Int32 bsGetBit ( BitStream* bs )
|
||||
{
|
||||
if (bs->buffLive > 0) {
|
||||
bs->buffLive --;
|
||||
return ( ((bs->buffer) >> (bs->buffLive)) & 0x1 );
|
||||
} else {
|
||||
Int32 retVal = getc ( bs->handle );
|
||||
if ( retVal == EOF ) {
|
||||
if (errno != 0) readError();
|
||||
return 2;
|
||||
}
|
||||
bs->buffLive = 7;
|
||||
bs->buffer = retVal;
|
||||
return ( ((bs->buffer) >> 7) & 0x1 );
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/*---------------------------------------------*/
|
||||
void bsClose ( BitStream* bs )
|
||||
{
|
||||
Int32 retVal;
|
||||
|
||||
if ( bs->mode == 'w' ) {
|
||||
while ( bs->buffLive < 8 ) {
|
||||
bs->buffLive++;
|
||||
bs->buffer <<= 1;
|
||||
};
|
||||
retVal = putc ( (UChar) (bs->buffer), bs->handle );
|
||||
if (retVal == EOF) writeError();
|
||||
bytesOut++;
|
||||
retVal = fflush ( bs->handle );
|
||||
if (retVal == EOF) writeError();
|
||||
}
|
||||
retVal = fclose ( bs->handle );
|
||||
if (retVal == EOF) {
|
||||
if (bs->mode == 'w') writeError(); else readError();
|
||||
}
|
||||
free ( bs );
|
||||
}
|
||||
|
||||
|
||||
/*---------------------------------------------*/
|
||||
void bsPutUChar ( BitStream* bs, UChar c )
|
||||
{
|
||||
Int32 i;
|
||||
for (i = 7; i >= 0; i--)
|
||||
bsPutBit ( bs, (((UInt32) c) >> i) & 0x1 );
|
||||
}
|
||||
|
||||
|
||||
/*---------------------------------------------*/
|
||||
void bsPutUInt32 ( BitStream* bs, UInt32 c )
|
||||
{
|
||||
Int32 i;
|
||||
|
||||
for (i = 31; i >= 0; i--)
|
||||
bsPutBit ( bs, (c >> i) & 0x1 );
|
||||
}
|
||||
|
||||
|
||||
/*---------------------------------------------*/
|
||||
Bool endsInBz2 ( Char* name )
|
||||
{
|
||||
Int32 n = strlen ( name );
|
||||
if (n <= 4) return False;
|
||||
return
|
||||
(name[n-4] == '.' &&
|
||||
name[n-3] == 'b' &&
|
||||
name[n-2] == 'z' &&
|
||||
name[n-1] == '2');
|
||||
}
|
||||
|
||||
|
||||
/*---------------------------------------------------*/
|
||||
/*--- ---*/
|
||||
/*---------------------------------------------------*/
|
||||
|
||||
/* This logic isn't really right when it comes to Cygwin. */
|
||||
#ifdef _WIN32
|
||||
# define BZ_SPLIT_SYM '\\' /* path splitter on Windows platform */
|
||||
#else
|
||||
# define BZ_SPLIT_SYM '/' /* path splitter on Unix platform */
|
||||
#endif
|
||||
|
||||
#define BLOCK_HEADER_HI 0x00003141UL
|
||||
#define BLOCK_HEADER_LO 0x59265359UL
|
||||
|
||||
#define BLOCK_ENDMARK_HI 0x00001772UL
|
||||
#define BLOCK_ENDMARK_LO 0x45385090UL
|
||||
|
||||
/* Increase if necessary. However, a .bz2 file with > 50000 blocks
|
||||
would have an uncompressed size of at least 40GB, so the chances
|
||||
are low you'll need to up this.
|
||||
*/
|
||||
#define BZ_MAX_HANDLED_BLOCKS 50000
|
||||
|
||||
MaybeUInt64 bStart [BZ_MAX_HANDLED_BLOCKS];
|
||||
MaybeUInt64 bEnd [BZ_MAX_HANDLED_BLOCKS];
|
||||
MaybeUInt64 rbStart[BZ_MAX_HANDLED_BLOCKS];
|
||||
MaybeUInt64 rbEnd [BZ_MAX_HANDLED_BLOCKS];
|
||||
|
||||
Int32 main ( Int32 argc, Char** argv )
|
||||
{
|
||||
FILE* inFile;
|
||||
FILE* outFile;
|
||||
BitStream* bsIn, *bsWr;
|
||||
Int32 b, wrBlock, currBlock, rbCtr;
|
||||
MaybeUInt64 bitsRead;
|
||||
|
||||
UInt32 buffHi, buffLo, blockCRC;
|
||||
Char* p;
|
||||
|
||||
strcpy ( progName, argv[0] );
|
||||
inFileName[0] = outFileName[0] = 0;
|
||||
|
||||
fprintf ( stderr,
|
||||
"bzip2recover 1.0.2: extracts blocks from damaged .bz2 files.\n" );
|
||||
|
||||
if (argc != 2) {
|
||||
fprintf ( stderr, "%s: usage is `%s damaged_file_name'.\n",
|
||||
progName, progName );
|
||||
switch (sizeof(MaybeUInt64)) {
|
||||
case 8:
|
||||
fprintf(stderr,
|
||||
"\trestrictions on size of recovered file: None\n");
|
||||
break;
|
||||
case 4:
|
||||
fprintf(stderr,
|
||||
"\trestrictions on size of recovered file: 512 MB\n");
|
||||
fprintf(stderr,
|
||||
"\tto circumvent, recompile with MaybeUInt64 as an\n"
|
||||
"\tunsigned 64-bit int.\n");
|
||||
break;
|
||||
default:
|
||||
fprintf(stderr,
|
||||
"\tsizeof(MaybeUInt64) is not 4 or 8 -- "
|
||||
"configuration error.\n");
|
||||
break;
|
||||
}
|
||||
exit(1);
|
||||
}
|
||||
|
||||
if (strlen(argv[1]) >= BZ_MAX_FILENAME-20) {
|
||||
fprintf ( stderr,
|
||||
"%s: supplied filename is suspiciously (>= %d chars) long. Bye!\n",
|
||||
progName, strlen(argv[1]) );
|
||||
exit(1);
|
||||
}
|
||||
|
||||
strcpy ( inFileName, argv[1] );
|
||||
|
||||
inFile = fopen ( inFileName, "rb" );
|
||||
if (inFile == NULL) {
|
||||
fprintf ( stderr, "%s: can't read `%s'\n", progName, inFileName );
|
||||
exit(1);
|
||||
}
|
||||
|
||||
bsIn = bsOpenReadStream ( inFile );
|
||||
fprintf ( stderr, "%s: searching for block boundaries ...\n", progName );
|
||||
|
||||
bitsRead = 0;
|
||||
buffHi = buffLo = 0;
|
||||
currBlock = 0;
|
||||
bStart[currBlock] = 0;
|
||||
|
||||
rbCtr = 0;
|
||||
|
||||
while (True) {
|
||||
b = bsGetBit ( bsIn );
|
||||
bitsRead++;
|
||||
if (b == 2) {
|
||||
if (bitsRead >= bStart[currBlock] &&
|
||||
(bitsRead - bStart[currBlock]) >= 40) {
|
||||
bEnd[currBlock] = bitsRead-1;
|
||||
if (currBlock > 0)
|
||||
fprintf ( stderr, " block %d runs from " MaybeUInt64_FMT
|
||||
" to " MaybeUInt64_FMT " (incomplete)\n",
|
||||
currBlock, bStart[currBlock], bEnd[currBlock] );
|
||||
} else
|
||||
currBlock--;
|
||||
break;
|
||||
}
|
||||
buffHi = (buffHi << 1) | (buffLo >> 31);
|
||||
buffLo = (buffLo << 1) | (b & 1);
|
||||
if ( ( (buffHi & 0x0000ffff) == BLOCK_HEADER_HI
|
||||
&& buffLo == BLOCK_HEADER_LO)
|
||||
||
|
||||
( (buffHi & 0x0000ffff) == BLOCK_ENDMARK_HI
|
||||
&& buffLo == BLOCK_ENDMARK_LO)
|
||||
) {
|
||||
if (bitsRead > 49) {
|
||||
bEnd[currBlock] = bitsRead-49;
|
||||
} else {
|
||||
bEnd[currBlock] = 0;
|
||||
}
|
||||
if (currBlock > 0 &&
|
||||
(bEnd[currBlock] - bStart[currBlock]) >= 130) {
|
||||
fprintf ( stderr, " block %d runs from " MaybeUInt64_FMT
|
||||
" to " MaybeUInt64_FMT "\n",
|
||||
rbCtr+1, bStart[currBlock], bEnd[currBlock] );
|
||||
rbStart[rbCtr] = bStart[currBlock];
|
||||
rbEnd[rbCtr] = bEnd[currBlock];
|
||||
rbCtr++;
|
||||
}
|
||||
if (currBlock >= BZ_MAX_HANDLED_BLOCKS)
|
||||
tooManyBlocks(BZ_MAX_HANDLED_BLOCKS);
|
||||
currBlock++;
|
||||
|
||||
bStart[currBlock] = bitsRead;
|
||||
}
|
||||
}
|
||||
|
||||
bsClose ( bsIn );
|
||||
|
||||
/*-- identified blocks run from 1 to rbCtr inclusive. --*/
|
||||
|
||||
if (rbCtr < 1) {
|
||||
fprintf ( stderr,
|
||||
"%s: sorry, I couldn't find any block boundaries.\n",
|
||||
progName );
|
||||
exit(1);
|
||||
};
|
||||
|
||||
fprintf ( stderr, "%s: splitting into blocks\n", progName );
|
||||
|
||||
inFile = fopen ( inFileName, "rb" );
|
||||
if (inFile == NULL) {
|
||||
fprintf ( stderr, "%s: can't open `%s'\n", progName, inFileName );
|
||||
exit(1);
|
||||
}
|
||||
bsIn = bsOpenReadStream ( inFile );
|
||||
|
||||
/*-- placate gcc's dataflow analyser --*/
|
||||
blockCRC = 0; bsWr = 0;
|
||||
|
||||
bitsRead = 0;
|
||||
outFile = NULL;
|
||||
wrBlock = 0;
|
||||
while (True) {
|
||||
b = bsGetBit(bsIn);
|
||||
if (b == 2) break;
|
||||
buffHi = (buffHi << 1) | (buffLo >> 31);
|
||||
buffLo = (buffLo << 1) | (b & 1);
|
||||
if (bitsRead == 47+rbStart[wrBlock])
|
||||
blockCRC = (buffHi << 16) | (buffLo >> 16);
|
||||
|
||||
if (outFile != NULL && bitsRead >= rbStart[wrBlock]
|
||||
&& bitsRead <= rbEnd[wrBlock]) {
|
||||
bsPutBit ( bsWr, b );
|
||||
}
|
||||
|
||||
bitsRead++;
|
||||
|
||||
if (bitsRead == rbEnd[wrBlock]+1) {
|
||||
if (outFile != NULL) {
|
||||
bsPutUChar ( bsWr, 0x17 ); bsPutUChar ( bsWr, 0x72 );
|
||||
bsPutUChar ( bsWr, 0x45 ); bsPutUChar ( bsWr, 0x38 );
|
||||
bsPutUChar ( bsWr, 0x50 ); bsPutUChar ( bsWr, 0x90 );
|
||||
bsPutUInt32 ( bsWr, blockCRC );
|
||||
bsClose ( bsWr );
|
||||
}
|
||||
if (wrBlock >= rbCtr) break;
|
||||
wrBlock++;
|
||||
} else
|
||||
if (bitsRead == rbStart[wrBlock]) {
|
||||
/* Create the output file name, correctly handling leading paths.
|
||||
(31.10.2001 by Sergey E. Kusikov) */
|
||||
Char* split;
|
||||
Int32 ofs, k;
|
||||
for (k = 0; k < BZ_MAX_FILENAME; k++)
|
||||
outFileName[k] = 0;
|
||||
strcpy (outFileName, inFileName);
|
||||
split = strrchr (outFileName, BZ_SPLIT_SYM);
|
||||
if (split == NULL) {
|
||||
split = outFileName;
|
||||
} else {
|
||||
++split;
|
||||
}
|
||||
/* Now split points to the start of the basename. */
|
||||
ofs = split - outFileName;
|
||||
sprintf (split, "rec%5d", wrBlock+1);
|
||||
for (p = split; *p != 0; p++) if (*p == ' ') *p = '0';
|
||||
strcat (outFileName, inFileName + ofs);
|
||||
|
||||
if ( !endsInBz2(outFileName)) strcat ( outFileName, ".bz2" );
|
||||
|
||||
fprintf ( stderr, " writing block %d to `%s' ...\n",
|
||||
wrBlock+1, outFileName );
|
||||
|
||||
outFile = fopen ( outFileName, "wb" );
|
||||
if (outFile == NULL) {
|
||||
fprintf ( stderr, "%s: can't write `%s'\n",
|
||||
progName, outFileName );
|
||||
exit(1);
|
||||
}
|
||||
bsWr = bsOpenWriteStream ( outFile );
|
||||
bsPutUChar ( bsWr, BZ_HDR_B );
|
||||
bsPutUChar ( bsWr, BZ_HDR_Z );
|
||||
bsPutUChar ( bsWr, BZ_HDR_h );
|
||||
bsPutUChar ( bsWr, BZ_HDR_0 + 9 );
|
||||
bsPutUChar ( bsWr, 0x31 ); bsPutUChar ( bsWr, 0x41 );
|
||||
bsPutUChar ( bsWr, 0x59 ); bsPutUChar ( bsWr, 0x26 );
|
||||
bsPutUChar ( bsWr, 0x53 ); bsPutUChar ( bsWr, 0x59 );
|
||||
}
|
||||
}
|
||||
|
||||
fprintf ( stderr, "%s: finished\n", progName );
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
|
||||
/*-----------------------------------------------------------*/
|
||||
/*--- end bzip2recover.c ---*/
|
||||
/*-----------------------------------------------------------*/
|
||||
File diff suppressed because it is too large
Load Diff
@@ -0,0 +1,321 @@
|
||||
|
||||
/*-------------------------------------------------------------*/
|
||||
/*--- Public header file for the library. ---*/
|
||||
/*--- bzlib.h ---*/
|
||||
/*-------------------------------------------------------------*/
|
||||
|
||||
/*--
|
||||
This file is a part of bzip2 and/or libbzip2, a program and
|
||||
library for lossless, block-sorting data compression.
|
||||
|
||||
Copyright (C) 1996-2002 Julian R Seward. 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. 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@acm.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
|
||||
#define _BZLIB_H
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
#define BZ_RUN 0
|
||||
#define BZ_FLUSH 1
|
||||
#define BZ_FINISH 2
|
||||
|
||||
#define BZ_OK 0
|
||||
#define BZ_RUN_OK 1
|
||||
#define BZ_FLUSH_OK 2
|
||||
#define BZ_FINISH_OK 3
|
||||
#define BZ_STREAM_END 4
|
||||
#define BZ_SEQUENCE_ERROR (-1)
|
||||
#define BZ_PARAM_ERROR (-2)
|
||||
#define BZ_MEM_ERROR (-3)
|
||||
#define BZ_DATA_ERROR (-4)
|
||||
#define BZ_DATA_ERROR_MAGIC (-5)
|
||||
#define BZ_IO_ERROR (-6)
|
||||
#define BZ_UNEXPECTED_EOF (-7)
|
||||
#define BZ_OUTBUFF_FULL (-8)
|
||||
#define BZ_CONFIG_ERROR (-9)
|
||||
|
||||
typedef
|
||||
struct {
|
||||
char *next_in;
|
||||
unsigned int avail_in;
|
||||
unsigned int total_in_lo32;
|
||||
unsigned int total_in_hi32;
|
||||
|
||||
char *next_out;
|
||||
unsigned int avail_out;
|
||||
unsigned int total_out_lo32;
|
||||
unsigned int total_out_hi32;
|
||||
|
||||
void *state;
|
||||
|
||||
void *(*bzalloc)(void *,int,int);
|
||||
void (*bzfree)(void *,void *);
|
||||
void *opaque;
|
||||
}
|
||||
bz_stream;
|
||||
|
||||
|
||||
#ifndef BZ_IMPORT
|
||||
#define BZ_EXPORT
|
||||
#endif
|
||||
|
||||
/* Need a definitition for FILE */
|
||||
#include <stdio.h>
|
||||
|
||||
#ifdef _WIN32
|
||||
# include <windows.h>
|
||||
# ifdef small
|
||||
/* windows.h define small to char */
|
||||
# undef small
|
||||
# endif
|
||||
# ifdef BZ_EXPORT
|
||||
# define BZ_API(func) WINAPI func
|
||||
# define BZ_EXTERN extern
|
||||
# else
|
||||
/* import windows dll dynamically */
|
||||
# define BZ_API(func) (WINAPI * func)
|
||||
# define BZ_EXTERN
|
||||
# endif
|
||||
#else
|
||||
# define BZ_API(func) func
|
||||
# define BZ_EXTERN extern
|
||||
#endif
|
||||
|
||||
|
||||
/*-- Core (low-level) library functions --*/
|
||||
|
||||
BZ_EXTERN int BZ_API(BZ2_bzCompressInit) (
|
||||
bz_stream* strm,
|
||||
int blockSize100k,
|
||||
int verbosity,
|
||||
int workFactor
|
||||
);
|
||||
|
||||
BZ_EXTERN int BZ_API(BZ2_bzCompress) (
|
||||
bz_stream* strm,
|
||||
int action
|
||||
);
|
||||
|
||||
BZ_EXTERN int BZ_API(BZ2_bzCompressEnd) (
|
||||
bz_stream* strm
|
||||
);
|
||||
|
||||
BZ_EXTERN int BZ_API(BZ2_bzDecompressInit) (
|
||||
bz_stream *strm,
|
||||
int verbosity,
|
||||
int small
|
||||
);
|
||||
|
||||
BZ_EXTERN int BZ_API(BZ2_bzDecompress) (
|
||||
bz_stream* strm
|
||||
);
|
||||
|
||||
BZ_EXTERN int BZ_API(BZ2_bzDecompressEnd) (
|
||||
bz_stream *strm
|
||||
);
|
||||
|
||||
|
||||
|
||||
/*-- High(er) level library functions --*/
|
||||
|
||||
#ifndef BZ_NO_STDIO
|
||||
#define BZ_MAX_UNUSED 5000
|
||||
|
||||
typedef void BZFILE;
|
||||
|
||||
BZ_EXTERN BZFILE* BZ_API(BZ2_bzReadOpen) (
|
||||
int* bzerror,
|
||||
FILE* f,
|
||||
int verbosity,
|
||||
int small,
|
||||
void* unused,
|
||||
int nUnused
|
||||
);
|
||||
|
||||
BZ_EXTERN void BZ_API(BZ2_bzReadClose) (
|
||||
int* bzerror,
|
||||
BZFILE* b
|
||||
);
|
||||
|
||||
BZ_EXTERN void BZ_API(BZ2_bzReadGetUnused) (
|
||||
int* bzerror,
|
||||
BZFILE* b,
|
||||
void** unused,
|
||||
int* nUnused
|
||||
);
|
||||
|
||||
BZ_EXTERN int BZ_API(BZ2_bzRead) (
|
||||
int* bzerror,
|
||||
BZFILE* b,
|
||||
void* buf,
|
||||
int len
|
||||
);
|
||||
|
||||
BZ_EXTERN BZFILE* BZ_API(BZ2_bzWriteOpen) (
|
||||
int* bzerror,
|
||||
FILE* f,
|
||||
int blockSize100k,
|
||||
int verbosity,
|
||||
int workFactor
|
||||
);
|
||||
|
||||
BZ_EXTERN void BZ_API(BZ2_bzWrite) (
|
||||
int* bzerror,
|
||||
BZFILE* b,
|
||||
void* buf,
|
||||
int len
|
||||
);
|
||||
|
||||
BZ_EXTERN void BZ_API(BZ2_bzWriteClose) (
|
||||
int* bzerror,
|
||||
BZFILE* b,
|
||||
int abandon,
|
||||
unsigned int* nbytes_in,
|
||||
unsigned int* nbytes_out
|
||||
);
|
||||
|
||||
BZ_EXTERN void BZ_API(BZ2_bzWriteClose64) (
|
||||
int* bzerror,
|
||||
BZFILE* b,
|
||||
int abandon,
|
||||
unsigned int* nbytes_in_lo32,
|
||||
unsigned int* nbytes_in_hi32,
|
||||
unsigned int* nbytes_out_lo32,
|
||||
unsigned int* nbytes_out_hi32
|
||||
);
|
||||
#endif
|
||||
|
||||
|
||||
/*-- Utility functions --*/
|
||||
|
||||
BZ_EXTERN int BZ_API(BZ2_bzBuffToBuffCompress) (
|
||||
char* dest,
|
||||
unsigned int* destLen,
|
||||
char* source,
|
||||
unsigned int sourceLen,
|
||||
int blockSize100k,
|
||||
int verbosity,
|
||||
int workFactor
|
||||
);
|
||||
|
||||
BZ_EXTERN int BZ_API(BZ2_bzBuffToBuffDecompress) (
|
||||
char* dest,
|
||||
unsigned int* destLen,
|
||||
char* source,
|
||||
unsigned int sourceLen,
|
||||
int small,
|
||||
int verbosity
|
||||
);
|
||||
|
||||
|
||||
/*--
|
||||
Code contributed by Yoshioka Tsuneo
|
||||
(QWF00133@niftyserve.or.jp/tsuneo-y@is.aist-nara.ac.jp),
|
||||
to support better zlib compatibility.
|
||||
This code is not _officially_ part of libbzip2 (yet);
|
||||
I haven't tested it, documented it, or considered the
|
||||
threading-safeness of it.
|
||||
If this code breaks, please contact both Yoshioka and me.
|
||||
--*/
|
||||
|
||||
BZ_EXTERN const char * BZ_API(BZ2_bzlibVersion) (
|
||||
void
|
||||
);
|
||||
|
||||
#ifndef BZ_NO_STDIO
|
||||
BZ_EXTERN BZFILE * BZ_API(BZ2_bzopen) (
|
||||
const char *path,
|
||||
const char *mode
|
||||
);
|
||||
|
||||
BZ_EXTERN BZFILE * BZ_API(BZ2_bzdopen) (
|
||||
int fd,
|
||||
const char *mode
|
||||
);
|
||||
|
||||
BZ_EXTERN int BZ_API(BZ2_bzread) (
|
||||
BZFILE* b,
|
||||
void* buf,
|
||||
int len
|
||||
);
|
||||
|
||||
BZ_EXTERN int BZ_API(BZ2_bzwrite) (
|
||||
BZFILE* b,
|
||||
void* buf,
|
||||
int len
|
||||
);
|
||||
|
||||
BZ_EXTERN int BZ_API(BZ2_bzflush) (
|
||||
BZFILE* b
|
||||
);
|
||||
|
||||
BZ_EXTERN void BZ_API(BZ2_bzclose) (
|
||||
BZFILE* b
|
||||
);
|
||||
|
||||
BZ_EXTERN const char * BZ_API(BZ2_bzerror) (
|
||||
BZFILE *b,
|
||||
int *errnum
|
||||
);
|
||||
#endif
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif
|
||||
|
||||
/*-------------------------------------------------------------*/
|
||||
/*--- end bzlib.h ---*/
|
||||
/*-------------------------------------------------------------*/
|
||||
@@ -0,0 +1,537 @@
|
||||
|
||||
/*-------------------------------------------------------------*/
|
||||
/*--- Private header file for the library. ---*/
|
||||
/*--- bzlib_private.h ---*/
|
||||
/*-------------------------------------------------------------*/
|
||||
|
||||
/*--
|
||||
This file is a part of bzip2 and/or libbzip2, a program and
|
||||
library for lossless, block-sorting data compression.
|
||||
|
||||
Copyright (C) 1996-2002 Julian R Seward. 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. 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@acm.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
|
||||
#define _BZLIB_PRIVATE_H
|
||||
|
||||
#include <stdlib.h>
|
||||
|
||||
#ifndef BZ_NO_STDIO
|
||||
#include <stdio.h>
|
||||
#include <ctype.h>
|
||||
#include <string.h>
|
||||
#endif
|
||||
|
||||
#include "bzlib.h"
|
||||
|
||||
|
||||
|
||||
/*-- General stuff. --*/
|
||||
|
||||
#define BZ_VERSION "1.0.2, 30-Dec-2001"
|
||||
|
||||
typedef char Char;
|
||||
typedef unsigned char Bool;
|
||||
typedef unsigned char UChar;
|
||||
typedef int Int32;
|
||||
typedef unsigned int UInt32;
|
||||
typedef short Int16;
|
||||
typedef unsigned short UInt16;
|
||||
|
||||
#define True ((Bool)1)
|
||||
#define False ((Bool)0)
|
||||
|
||||
#ifndef __GNUC__
|
||||
#define __inline__ /* */
|
||||
#endif
|
||||
|
||||
#ifndef BZ_NO_STDIO
|
||||
extern void BZ2_bz__AssertH__fail ( int errcode );
|
||||
#define AssertH(cond,errcode) \
|
||||
{ if (!(cond)) BZ2_bz__AssertH__fail ( errcode ); }
|
||||
#if BZ_DEBUG
|
||||
#define AssertD(cond,msg) \
|
||||
{ if (!(cond)) { \
|
||||
fprintf ( stderr, \
|
||||
"\n\nlibbzip2(debug build): internal error\n\t%s\n", msg );\
|
||||
exit(1); \
|
||||
}}
|
||||
#else
|
||||
#define AssertD(cond,msg) /* */
|
||||
#endif
|
||||
#define VPrintf0(zf) \
|
||||
fprintf(stderr,zf)
|
||||
#define VPrintf1(zf,za1) \
|
||||
fprintf(stderr,zf,za1)
|
||||
#define VPrintf2(zf,za1,za2) \
|
||||
fprintf(stderr,zf,za1,za2)
|
||||
#define VPrintf3(zf,za1,za2,za3) \
|
||||
fprintf(stderr,zf,za1,za2,za3)
|
||||
#define VPrintf4(zf,za1,za2,za3,za4) \
|
||||
fprintf(stderr,zf,za1,za2,za3,za4)
|
||||
#define VPrintf5(zf,za1,za2,za3,za4,za5) \
|
||||
fprintf(stderr,zf,za1,za2,za3,za4,za5)
|
||||
#else
|
||||
extern void bz_internal_error ( int errcode );
|
||||
#define AssertH(cond,errcode) \
|
||||
{ if (!(cond)) bz_internal_error ( errcode ); }
|
||||
#define AssertD(cond,msg) /* */
|
||||
#define VPrintf0(zf) /* */
|
||||
#define VPrintf1(zf,za1) /* */
|
||||
#define VPrintf2(zf,za1,za2) /* */
|
||||
#define VPrintf3(zf,za1,za2,za3) /* */
|
||||
#define VPrintf4(zf,za1,za2,za3,za4) /* */
|
||||
#define VPrintf5(zf,za1,za2,za3,za4,za5) /* */
|
||||
#endif
|
||||
|
||||
|
||||
#define BZALLOC(nnn) (strm->bzalloc)(strm->opaque,(nnn),1)
|
||||
#define BZFREE(ppp) (strm->bzfree)(strm->opaque,(ppp))
|
||||
|
||||
|
||||
/*-- Header bytes. --*/
|
||||
|
||||
#define BZ_HDR_B 0x42 /* 'B' */
|
||||
#define BZ_HDR_Z 0x5a /* 'Z' */
|
||||
#define BZ_HDR_h 0x68 /* 'h' */
|
||||
#define BZ_HDR_0 0x30 /* '0' */
|
||||
|
||||
/*-- Constants for the back end. --*/
|
||||
|
||||
#define BZ_MAX_ALPHA_SIZE 258
|
||||
#define BZ_MAX_CODE_LEN 23
|
||||
|
||||
#define BZ_RUNA 0
|
||||
#define BZ_RUNB 1
|
||||
|
||||
#define BZ_N_GROUPS 6
|
||||
#define BZ_G_SIZE 50
|
||||
#define BZ_N_ITERS 4
|
||||
|
||||
#define BZ_MAX_SELECTORS (2 + (900000 / BZ_G_SIZE))
|
||||
|
||||
|
||||
|
||||
/*-- Stuff for randomising repetitive blocks. --*/
|
||||
|
||||
extern Int32 BZ2_rNums[512];
|
||||
|
||||
#define BZ_RAND_DECLS \
|
||||
Int32 rNToGo; \
|
||||
Int32 rTPos \
|
||||
|
||||
#define BZ_RAND_INIT_MASK \
|
||||
s->rNToGo = 0; \
|
||||
s->rTPos = 0 \
|
||||
|
||||
#define BZ_RAND_MASK ((s->rNToGo == 1) ? 1 : 0)
|
||||
|
||||
#define BZ_RAND_UPD_MASK \
|
||||
if (s->rNToGo == 0) { \
|
||||
s->rNToGo = BZ2_rNums[s->rTPos]; \
|
||||
s->rTPos++; \
|
||||
if (s->rTPos == 512) s->rTPos = 0; \
|
||||
} \
|
||||
s->rNToGo--;
|
||||
|
||||
|
||||
|
||||
/*-- Stuff for doing CRCs. --*/
|
||||
|
||||
extern UInt32 BZ2_crc32Table[256];
|
||||
|
||||
#define BZ_INITIALISE_CRC(crcVar) \
|
||||
{ \
|
||||
crcVar = 0xffffffffL; \
|
||||
}
|
||||
|
||||
#define BZ_FINALISE_CRC(crcVar) \
|
||||
{ \
|
||||
crcVar = ~(crcVar); \
|
||||
}
|
||||
|
||||
#define BZ_UPDATE_CRC(crcVar,cha) \
|
||||
{ \
|
||||
crcVar = (crcVar << 8) ^ \
|
||||
BZ2_crc32Table[(crcVar >> 24) ^ \
|
||||
((UChar)cha)]; \
|
||||
}
|
||||
|
||||
|
||||
|
||||
/*-- States and modes for compression. --*/
|
||||
|
||||
#define BZ_M_IDLE 1
|
||||
#define BZ_M_RUNNING 2
|
||||
#define BZ_M_FLUSHING 3
|
||||
#define BZ_M_FINISHING 4
|
||||
|
||||
#define BZ_S_OUTPUT 1
|
||||
#define BZ_S_INPUT 2
|
||||
|
||||
#define BZ_N_RADIX 2
|
||||
#define BZ_N_QSORT 12
|
||||
#define BZ_N_SHELL 18
|
||||
#define BZ_N_OVERSHOOT (BZ_N_RADIX + BZ_N_QSORT + BZ_N_SHELL + 2)
|
||||
|
||||
|
||||
|
||||
|
||||
/*-- Structure holding all the compression-side stuff. --*/
|
||||
|
||||
typedef
|
||||
struct {
|
||||
/* pointer back to the struct bz_stream */
|
||||
bz_stream* strm;
|
||||
|
||||
/* mode this stream is in, and whether inputting */
|
||||
/* or outputting data */
|
||||
Int32 mode;
|
||||
Int32 state;
|
||||
|
||||
/* remembers avail_in when flush/finish requested */
|
||||
UInt32 avail_in_expect;
|
||||
|
||||
/* for doing the block sorting */
|
||||
UInt32* arr1;
|
||||
UInt32* arr2;
|
||||
UInt32* ftab;
|
||||
Int32 origPtr;
|
||||
|
||||
/* aliases for arr1 and arr2 */
|
||||
UInt32* ptr;
|
||||
UChar* block;
|
||||
UInt16* mtfv;
|
||||
UChar* zbits;
|
||||
|
||||
/* for deciding when to use the fallback sorting algorithm */
|
||||
Int32 workFactor;
|
||||
|
||||
/* run-length-encoding of the input */
|
||||
UInt32 state_in_ch;
|
||||
Int32 state_in_len;
|
||||
BZ_RAND_DECLS;
|
||||
|
||||
/* input and output limits and current posns */
|
||||
Int32 nblock;
|
||||
Int32 nblockMAX;
|
||||
Int32 numZ;
|
||||
Int32 state_out_pos;
|
||||
|
||||
/* map of bytes used in block */
|
||||
Int32 nInUse;
|
||||
Bool inUse[256];
|
||||
UChar unseqToSeq[256];
|
||||
|
||||
/* the buffer for bit stream creation */
|
||||
UInt32 bsBuff;
|
||||
Int32 bsLive;
|
||||
|
||||
/* block and combined CRCs */
|
||||
UInt32 blockCRC;
|
||||
UInt32 combinedCRC;
|
||||
|
||||
/* misc administratium */
|
||||
Int32 verbosity;
|
||||
Int32 blockNo;
|
||||
Int32 blockSize100k;
|
||||
|
||||
/* stuff for coding the MTF values */
|
||||
Int32 nMTF;
|
||||
Int32 mtfFreq [BZ_MAX_ALPHA_SIZE];
|
||||
UChar selector [BZ_MAX_SELECTORS];
|
||||
UChar selectorMtf[BZ_MAX_SELECTORS];
|
||||
|
||||
UChar len [BZ_N_GROUPS][BZ_MAX_ALPHA_SIZE];
|
||||
Int32 code [BZ_N_GROUPS][BZ_MAX_ALPHA_SIZE];
|
||||
Int32 rfreq [BZ_N_GROUPS][BZ_MAX_ALPHA_SIZE];
|
||||
/* second dimension: only 3 needed; 4 makes index calculations faster */
|
||||
UInt32 len_pack[BZ_MAX_ALPHA_SIZE][4];
|
||||
|
||||
}
|
||||
EState;
|
||||
|
||||
|
||||
|
||||
/*-- externs for compression. --*/
|
||||
|
||||
extern void
|
||||
BZ2_blockSort ( EState* );
|
||||
|
||||
extern void
|
||||
BZ2_compressBlock ( EState*, Bool );
|
||||
|
||||
extern void
|
||||
BZ2_bsInitWrite ( EState* );
|
||||
|
||||
extern void
|
||||
BZ2_hbAssignCodes ( Int32*, UChar*, Int32, Int32, Int32 );
|
||||
|
||||
extern void
|
||||
BZ2_hbMakeCodeLengths ( UChar*, Int32*, Int32, Int32 );
|
||||
|
||||
|
||||
|
||||
/*-- states for decompression. --*/
|
||||
|
||||
#define BZ_X_IDLE 1
|
||||
#define BZ_X_OUTPUT 2
|
||||
|
||||
#define BZ_X_MAGIC_1 10
|
||||
#define BZ_X_MAGIC_2 11
|
||||
#define BZ_X_MAGIC_3 12
|
||||
#define BZ_X_MAGIC_4 13
|
||||
#define BZ_X_BLKHDR_1 14
|
||||
#define BZ_X_BLKHDR_2 15
|
||||
#define BZ_X_BLKHDR_3 16
|
||||
#define BZ_X_BLKHDR_4 17
|
||||
#define BZ_X_BLKHDR_5 18
|
||||
#define BZ_X_BLKHDR_6 19
|
||||
#define BZ_X_BCRC_1 20
|
||||
#define BZ_X_BCRC_2 21
|
||||
#define BZ_X_BCRC_3 22
|
||||
#define BZ_X_BCRC_4 23
|
||||
#define BZ_X_RANDBIT 24
|
||||
#define BZ_X_ORIGPTR_1 25
|
||||
#define BZ_X_ORIGPTR_2 26
|
||||
#define BZ_X_ORIGPTR_3 27
|
||||
#define BZ_X_MAPPING_1 28
|
||||
#define BZ_X_MAPPING_2 29
|
||||
#define BZ_X_SELECTOR_1 30
|
||||
#define BZ_X_SELECTOR_2 31
|
||||
#define BZ_X_SELECTOR_3 32
|
||||
#define BZ_X_CODING_1 33
|
||||
#define BZ_X_CODING_2 34
|
||||
#define BZ_X_CODING_3 35
|
||||
#define BZ_X_MTF_1 36
|
||||
#define BZ_X_MTF_2 37
|
||||
#define BZ_X_MTF_3 38
|
||||
#define BZ_X_MTF_4 39
|
||||
#define BZ_X_MTF_5 40
|
||||
#define BZ_X_MTF_6 41
|
||||
#define BZ_X_ENDHDR_2 42
|
||||
#define BZ_X_ENDHDR_3 43
|
||||
#define BZ_X_ENDHDR_4 44
|
||||
#define BZ_X_ENDHDR_5 45
|
||||
#define BZ_X_ENDHDR_6 46
|
||||
#define BZ_X_CCRC_1 47
|
||||
#define BZ_X_CCRC_2 48
|
||||
#define BZ_X_CCRC_3 49
|
||||
#define BZ_X_CCRC_4 50
|
||||
|
||||
|
||||
|
||||
/*-- Constants for the fast MTF decoder. --*/
|
||||
|
||||
#define MTFA_SIZE 4096
|
||||
#define MTFL_SIZE 16
|
||||
|
||||
|
||||
|
||||
/*-- Structure holding all the decompression-side stuff. --*/
|
||||
|
||||
typedef
|
||||
struct {
|
||||
/* pointer back to the struct bz_stream */
|
||||
bz_stream* strm;
|
||||
|
||||
/* state indicator for this stream */
|
||||
Int32 state;
|
||||
|
||||
/* for doing the final run-length decoding */
|
||||
UChar state_out_ch;
|
||||
Int32 state_out_len;
|
||||
Bool blockRandomised;
|
||||
BZ_RAND_DECLS;
|
||||
|
||||
/* the buffer for bit stream reading */
|
||||
UInt32 bsBuff;
|
||||
Int32 bsLive;
|
||||
|
||||
/* misc administratium */
|
||||
Int32 blockSize100k;
|
||||
Bool smallDecompress;
|
||||
Int32 currBlockNo;
|
||||
Int32 verbosity;
|
||||
|
||||
/* for undoing the Burrows-Wheeler transform */
|
||||
Int32 origPtr;
|
||||
UInt32 tPos;
|
||||
Int32 k0;
|
||||
Int32 unzftab[256];
|
||||
Int32 nblock_used;
|
||||
Int32 cftab[257];
|
||||
Int32 cftabCopy[257];
|
||||
|
||||
/* for undoing the Burrows-Wheeler transform (FAST) */
|
||||
UInt32 *tt;
|
||||
|
||||
/* for undoing the Burrows-Wheeler transform (SMALL) */
|
||||
UInt16 *ll16;
|
||||
UChar *ll4;
|
||||
|
||||
/* stored and calculated CRCs */
|
||||
UInt32 storedBlockCRC;
|
||||
UInt32 storedCombinedCRC;
|
||||
UInt32 calculatedBlockCRC;
|
||||
UInt32 calculatedCombinedCRC;
|
||||
|
||||
/* map of bytes used in block */
|
||||
Int32 nInUse;
|
||||
Bool inUse[256];
|
||||
Bool inUse16[16];
|
||||
UChar seqToUnseq[256];
|
||||
|
||||
/* for decoding the MTF values */
|
||||
UChar mtfa [MTFA_SIZE];
|
||||
Int32 mtfbase[256 / MTFL_SIZE];
|
||||
UChar selector [BZ_MAX_SELECTORS];
|
||||
UChar selectorMtf[BZ_MAX_SELECTORS];
|
||||
UChar len [BZ_N_GROUPS][BZ_MAX_ALPHA_SIZE];
|
||||
|
||||
Int32 limit [BZ_N_GROUPS][BZ_MAX_ALPHA_SIZE];
|
||||
Int32 base [BZ_N_GROUPS][BZ_MAX_ALPHA_SIZE];
|
||||
Int32 perm [BZ_N_GROUPS][BZ_MAX_ALPHA_SIZE];
|
||||
Int32 minLens[BZ_N_GROUPS];
|
||||
|
||||
/* save area for scalars in the main decompress code */
|
||||
Int32 save_i;
|
||||
Int32 save_j;
|
||||
Int32 save_t;
|
||||
Int32 save_alphaSize;
|
||||
Int32 save_nGroups;
|
||||
Int32 save_nSelectors;
|
||||
Int32 save_EOB;
|
||||
Int32 save_groupNo;
|
||||
Int32 save_groupPos;
|
||||
Int32 save_nextSym;
|
||||
Int32 save_nblockMAX;
|
||||
Int32 save_nblock;
|
||||
Int32 save_es;
|
||||
Int32 save_N;
|
||||
Int32 save_curr;
|
||||
Int32 save_zt;
|
||||
Int32 save_zn;
|
||||
Int32 save_zvec;
|
||||
Int32 save_zj;
|
||||
Int32 save_gSel;
|
||||
Int32 save_gMinlen;
|
||||
Int32* save_gLimit;
|
||||
Int32* save_gBase;
|
||||
Int32* save_gPerm;
|
||||
|
||||
}
|
||||
DState;
|
||||
|
||||
|
||||
|
||||
/*-- Macros for decompression. --*/
|
||||
|
||||
#define BZ_GET_FAST(cccc) \
|
||||
s->tPos = s->tt[s->tPos]; \
|
||||
cccc = (UChar)(s->tPos & 0xff); \
|
||||
s->tPos >>= 8;
|
||||
|
||||
#define BZ_GET_FAST_C(cccc) \
|
||||
c_tPos = c_tt[c_tPos]; \
|
||||
cccc = (UChar)(c_tPos & 0xff); \
|
||||
c_tPos >>= 8;
|
||||
|
||||
#define SET_LL4(i,n) \
|
||||
{ if (((i) & 0x1) == 0) \
|
||||
s->ll4[(i) >> 1] = (s->ll4[(i) >> 1] & 0xf0) | (n); else \
|
||||
s->ll4[(i) >> 1] = (s->ll4[(i) >> 1] & 0x0f) | ((n) << 4); \
|
||||
}
|
||||
|
||||
#define GET_LL4(i) \
|
||||
((((UInt32)(s->ll4[(i) >> 1])) >> (((i) << 2) & 0x4)) & 0xF)
|
||||
|
||||
#define SET_LL(i,n) \
|
||||
{ s->ll16[i] = (UInt16)(n & 0x0000ffff); \
|
||||
SET_LL4(i, n >> 16); \
|
||||
}
|
||||
|
||||
#define GET_LL(i) \
|
||||
(((UInt32)s->ll16[i]) | (GET_LL4(i) << 16))
|
||||
|
||||
#define BZ_GET_SMALL(cccc) \
|
||||
cccc = BZ2_indexIntoF ( s->tPos, s->cftab ); \
|
||||
s->tPos = GET_LL(s->tPos);
|
||||
|
||||
|
||||
/*-- externs for decompression. --*/
|
||||
|
||||
extern Int32
|
||||
BZ2_indexIntoF ( Int32, Int32* );
|
||||
|
||||
extern Int32
|
||||
BZ2_decompress ( DState* );
|
||||
|
||||
extern void
|
||||
BZ2_hbCreateDecodeTables ( Int32*, Int32*, Int32*, UChar*,
|
||||
Int32, Int32, Int32 );
|
||||
|
||||
|
||||
#endif
|
||||
|
||||
|
||||
/*-- BZ_NO_STDIO seems to make NULL disappear on some platforms. --*/
|
||||
|
||||
#ifdef BZ_NO_STDIO
|
||||
#ifndef NULL
|
||||
#define NULL 0
|
||||
#endif
|
||||
#endif
|
||||
|
||||
|
||||
/*-------------------------------------------------------------*/
|
||||
/*--- end bzlib_private.h ---*/
|
||||
/*-------------------------------------------------------------*/
|
||||
@@ -0,0 +1,61 @@
|
||||
#!/bin/sh
|
||||
|
||||
# Bzmore wrapped for bzip2,
|
||||
# adapted from zmore by Philippe Troin <[email protected]> for Debian GNU/Linux.
|
||||
|
||||
PATH="/usr/bin:$PATH"; export PATH
|
||||
|
||||
prog=`echo $0 | sed 's|.*/||'`
|
||||
case "$prog" in
|
||||
*less) more=less ;;
|
||||
*) more=more ;;
|
||||
esac
|
||||
|
||||
if test "`echo -n a`" = "-n a"; then
|
||||
# looks like a SysV system:
|
||||
n1=''; n2='\c'
|
||||
else
|
||||
n1='-n'; n2=''
|
||||
fi
|
||||
oldtty=`stty -g 2>/dev/null`
|
||||
if stty -cbreak 2>/dev/null; then
|
||||
cb='cbreak'; ncb='-cbreak'
|
||||
else
|
||||
# 'stty min 1' resets eof to ^a on both SunOS and SysV!
|
||||
cb='min 1 -icanon'; ncb='icanon eof ^d'
|
||||
fi
|
||||
if test $? -eq 0 -a -n "$oldtty"; then
|
||||
trap 'stty $oldtty 2>/dev/null; exit' 0 2 3 5 10 13 15
|
||||
else
|
||||
trap 'stty $ncb echo 2>/dev/null; exit' 0 2 3 5 10 13 15
|
||||
fi
|
||||
|
||||
if test $# = 0; then
|
||||
if test -t 0; then
|
||||
echo usage: $prog files...
|
||||
else
|
||||
bzip2 -cdfq | eval $more
|
||||
fi
|
||||
else
|
||||
FIRST=1
|
||||
for FILE
|
||||
do
|
||||
if test $FIRST -eq 0; then
|
||||
echo $n1 "--More--(Next file: $FILE)$n2"
|
||||
stty $cb -echo 2>/dev/null
|
||||
ANS=`dd bs=1 count=1 2>/dev/null`
|
||||
stty $ncb echo 2>/dev/null
|
||||
echo " "
|
||||
if test "$ANS" = 'e' -o "$ANS" = 'q'; then
|
||||
exit
|
||||
fi
|
||||
fi
|
||||
if test "$ANS" != 's'; then
|
||||
echo "------> $FILE <------"
|
||||
bzip2 -cdfq "$FILE" | eval $more
|
||||
fi
|
||||
if test -t; then
|
||||
FIRST=0
|
||||
fi
|
||||
done
|
||||
fi
|
||||
@@ -0,0 +1,714 @@
|
||||
|
||||
/*-------------------------------------------------------------*/
|
||||
/*--- Compression machinery (not incl block sorting) ---*/
|
||||
/*--- compress.c ---*/
|
||||
/*-------------------------------------------------------------*/
|
||||
|
||||
/*--
|
||||
This file is a part of bzip2 and/or libbzip2, a program and
|
||||
library for lossless, block-sorting data compression.
|
||||
|
||||
Copyright (C) 1996-2002 Julian R Seward. 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. 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@acm.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"
|
||||
|
||||
|
||||
/*---------------------------------------------------*/
|
||||
/*--- Bit stream I/O ---*/
|
||||
/*---------------------------------------------------*/
|
||||
|
||||
/*---------------------------------------------------*/
|
||||
void BZ2_bsInitWrite ( EState* s )
|
||||
{
|
||||
s->bsLive = 0;
|
||||
s->bsBuff = 0;
|
||||
}
|
||||
|
||||
|
||||
/*---------------------------------------------------*/
|
||||
static
|
||||
void bsFinishWrite ( EState* s )
|
||||
{
|
||||
while (s->bsLive > 0) {
|
||||
s->zbits[s->numZ] = (UChar)(s->bsBuff >> 24);
|
||||
s->numZ++;
|
||||
s->bsBuff <<= 8;
|
||||
s->bsLive -= 8;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/*---------------------------------------------------*/
|
||||
#define bsNEEDW(nz) \
|
||||
{ \
|
||||
while (s->bsLive >= 8) { \
|
||||
s->zbits[s->numZ] \
|
||||
= (UChar)(s->bsBuff >> 24); \
|
||||
s->numZ++; \
|
||||
s->bsBuff <<= 8; \
|
||||
s->bsLive -= 8; \
|
||||
} \
|
||||
}
|
||||
|
||||
|
||||
/*---------------------------------------------------*/
|
||||
static
|
||||
__inline__
|
||||
void bsW ( EState* s, Int32 n, UInt32 v )
|
||||
{
|
||||
bsNEEDW ( n );
|
||||
s->bsBuff |= (v << (32 - s->bsLive - n));
|
||||
s->bsLive += n;
|
||||
}
|
||||
|
||||
|
||||
/*---------------------------------------------------*/
|
||||
static
|
||||
void bsPutUInt32 ( EState* s, UInt32 u )
|
||||
{
|
||||
bsW ( s, 8, (u >> 24) & 0xffL );
|
||||
bsW ( s, 8, (u >> 16) & 0xffL );
|
||||
bsW ( s, 8, (u >> 8) & 0xffL );
|
||||
bsW ( s, 8, u & 0xffL );
|
||||
}
|
||||
|
||||
|
||||
/*---------------------------------------------------*/
|
||||
static
|
||||
void bsPutUChar ( EState* s, UChar c )
|
||||
{
|
||||
bsW( s, 8, (UInt32)c );
|
||||
}
|
||||
|
||||
|
||||
/*---------------------------------------------------*/
|
||||
/*--- The back end proper ---*/
|
||||
/*---------------------------------------------------*/
|
||||
|
||||
/*---------------------------------------------------*/
|
||||
static
|
||||
void makeMaps_e ( EState* s )
|
||||
{
|
||||
Int32 i;
|
||||
s->nInUse = 0;
|
||||
for (i = 0; i < 256; i++)
|
||||
if (s->inUse[i]) {
|
||||
s->unseqToSeq[i] = s->nInUse;
|
||||
s->nInUse++;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/*---------------------------------------------------*/
|
||||
static
|
||||
void generateMTFValues ( EState* s )
|
||||
{
|
||||
UChar yy[256];
|
||||
Int32 i, j;
|
||||
Int32 zPend;
|
||||
Int32 wr;
|
||||
Int32 EOB;
|
||||
|
||||
/*
|
||||
After sorting (eg, here),
|
||||
s->arr1 [ 0 .. s->nblock-1 ] holds sorted order,
|
||||
and
|
||||
((UChar*)s->arr2) [ 0 .. s->nblock-1 ]
|
||||
holds the original block data.
|
||||
|
||||
The first thing to do is generate the MTF values,
|
||||
and put them in
|
||||
((UInt16*)s->arr1) [ 0 .. s->nblock-1 ].
|
||||
Because there are strictly fewer or equal MTF values
|
||||
than block values, ptr values in this area are overwritten
|
||||
with MTF values only when they are no longer needed.
|
||||
|
||||
The final compressed bitstream is generated into the
|
||||
area starting at
|
||||
(UChar*) (&((UChar*)s->arr2)[s->nblock])
|
||||
|
||||
These storage aliases are set up in bzCompressInit(),
|
||||
except for the last one, which is arranged in
|
||||
compressBlock().
|
||||
*/
|
||||
UInt32* ptr = s->ptr;
|
||||
UChar* block = s->block;
|
||||
UInt16* mtfv = s->mtfv;
|
||||
|
||||
makeMaps_e ( s );
|
||||
EOB = s->nInUse+1;
|
||||
|
||||
for (i = 0; i <= EOB; i++) s->mtfFreq[i] = 0;
|
||||
|
||||
wr = 0;
|
||||
zPend = 0;
|
||||
for (i = 0; i < s->nInUse; i++) yy[i] = (UChar) i;
|
||||
|
||||
for (i = 0; i < s->nblock; i++) {
|
||||
UChar ll_i;
|
||||
AssertD ( wr <= i, "generateMTFValues(1)" );
|
||||
j = ptr[i]-1; if (j < 0) j += s->nblock;
|
||||
ll_i = s->unseqToSeq[block[j]];
|
||||
AssertD ( ll_i < s->nInUse, "generateMTFValues(2a)" );
|
||||
|
||||
if (yy[0] == ll_i) {
|
||||
zPend++;
|
||||
} else {
|
||||
|
||||
if (zPend > 0) {
|
||||
zPend--;
|
||||
while (True) {
|
||||
if (zPend & 1) {
|
||||
mtfv[wr] = BZ_RUNB; wr++;
|
||||
s->mtfFreq[BZ_RUNB]++;
|
||||
} else {
|
||||
mtfv[wr] = BZ_RUNA; wr++;
|
||||
s->mtfFreq[BZ_RUNA]++;
|
||||
}
|
||||
if (zPend < 2) break;
|
||||
zPend = (zPend - 2) / 2;
|
||||
};
|
||||
zPend = 0;
|
||||
}
|
||||
{
|
||||
register UChar rtmp;
|
||||
register UChar* ryy_j;
|
||||
register UChar rll_i;
|
||||
rtmp = yy[1];
|
||||
yy[1] = yy[0];
|
||||
ryy_j = &(yy[1]);
|
||||
rll_i = ll_i;
|
||||
while ( rll_i != rtmp ) {
|
||||
register UChar rtmp2;
|
||||
ryy_j++;
|
||||
rtmp2 = rtmp;
|
||||
rtmp = *ryy_j;
|
||||
*ryy_j = rtmp2;
|
||||
};
|
||||
yy[0] = rtmp;
|
||||
j = ryy_j - &(yy[0]);
|
||||
mtfv[wr] = j+1; wr++; s->mtfFreq[j+1]++;
|
||||
}
|
||||
|
||||
}
|
||||
}
|
||||
|
||||
if (zPend > 0) {
|
||||
zPend--;
|
||||
while (True) {
|
||||
if (zPend & 1) {
|
||||
mtfv[wr] = BZ_RUNB; wr++;
|
||||
s->mtfFreq[BZ_RUNB]++;
|
||||
} else {
|
||||
mtfv[wr] = BZ_RUNA; wr++;
|
||||
s->mtfFreq[BZ_RUNA]++;
|
||||
}
|
||||
if (zPend < 2) break;
|
||||
zPend = (zPend - 2) / 2;
|
||||
};
|
||||
zPend = 0;
|
||||
}
|
||||
|
||||
mtfv[wr] = EOB; wr++; s->mtfFreq[EOB]++;
|
||||
|
||||
s->nMTF = wr;
|
||||
}
|
||||
|
||||
|
||||
/*---------------------------------------------------*/
|
||||
#define BZ_LESSER_ICOST 0
|
||||
#define BZ_GREATER_ICOST 15
|
||||
|
||||
static
|
||||
void sendMTFValues ( EState* s )
|
||||
{
|
||||
Int32 v, t, i, j, gs, ge, totc, bt, bc, iter;
|
||||
Int32 nSelectors, alphaSize, minLen, maxLen, selCtr;
|
||||
Int32 nGroups, nBytes;
|
||||
|
||||
/*--
|
||||
UChar len [BZ_N_GROUPS][BZ_MAX_ALPHA_SIZE];
|
||||
is a global since the decoder also needs it.
|
||||
|
||||
Int32 code[BZ_N_GROUPS][BZ_MAX_ALPHA_SIZE];
|
||||
Int32 rfreq[BZ_N_GROUPS][BZ_MAX_ALPHA_SIZE];
|
||||
are also globals only used in this proc.
|
||||
Made global to keep stack frame size small.
|
||||
--*/
|
||||
|
||||
|
||||
UInt16 cost[BZ_N_GROUPS];
|
||||
Int32 fave[BZ_N_GROUPS];
|
||||
|
||||
UInt16* mtfv = s->mtfv;
|
||||
|
||||
if (s->verbosity >= 3)
|
||||
VPrintf3( " %d in block, %d after MTF & 1-2 coding, "
|
||||
"%d+2 syms in use\n",
|
||||
s->nblock, s->nMTF, s->nInUse );
|
||||
|
||||
alphaSize = s->nInUse+2;
|
||||
for (t = 0; t < BZ_N_GROUPS; t++)
|
||||
for (v = 0; v < alphaSize; v++)
|
||||
s->len[t][v] = BZ_GREATER_ICOST;
|
||||
|
||||
/*--- Decide how many coding tables to use ---*/
|
||||
AssertH ( s->nMTF > 0, 3001 );
|
||||
if (s->nMTF < 200) nGroups = 2; else
|
||||
if (s->nMTF < 600) nGroups = 3; else
|
||||
if (s->nMTF < 1200) nGroups = 4; else
|
||||
if (s->nMTF < 2400) nGroups = 5; else
|
||||
nGroups = 6;
|
||||
|
||||
/*--- Generate an initial set of coding tables ---*/
|
||||
{
|
||||
Int32 nPart, remF, tFreq, aFreq;
|
||||
|
||||
nPart = nGroups;
|
||||
remF = s->nMTF;
|
||||
gs = 0;
|
||||
while (nPart > 0) {
|
||||
tFreq = remF / nPart;
|
||||
ge = gs-1;
|
||||
aFreq = 0;
|
||||
while (aFreq < tFreq && ge < alphaSize-1) {
|
||||
ge++;
|
||||
aFreq += s->mtfFreq[ge];
|
||||
}
|
||||
|
||||
if (ge > gs
|
||||
&& nPart != nGroups && nPart != 1
|
||||
&& ((nGroups-nPart) % 2 == 1)) {
|
||||
aFreq -= s->mtfFreq[ge];
|
||||
ge--;
|
||||
}
|
||||
|
||||
if (s->verbosity >= 3)
|
||||
VPrintf5( " initial group %d, [%d .. %d], "
|
||||
"has %d syms (%4.1f%%)\n",
|
||||
nPart, gs, ge, aFreq,
|
||||
(100.0 * (float)aFreq) / (float)(s->nMTF) );
|
||||
|
||||
for (v = 0; v < alphaSize; v++)
|
||||
if (v >= gs && v <= ge)
|
||||
s->len[nPart-1][v] = BZ_LESSER_ICOST; else
|
||||
s->len[nPart-1][v] = BZ_GREATER_ICOST;
|
||||
|
||||
nPart--;
|
||||
gs = ge+1;
|
||||
remF -= aFreq;
|
||||
}
|
||||
}
|
||||
|
||||
/*---
|
||||
Iterate up to BZ_N_ITERS times to improve the tables.
|
||||
---*/
|
||||
for (iter = 0; iter < BZ_N_ITERS; iter++) {
|
||||
|
||||
for (t = 0; t < nGroups; t++) fave[t] = 0;
|
||||
|
||||
for (t = 0; t < nGroups; t++)
|
||||
for (v = 0; v < alphaSize; v++)
|
||||
s->rfreq[t][v] = 0;
|
||||
|
||||
/*---
|
||||
Set up an auxiliary length table which is used to fast-track
|
||||
the common case (nGroups == 6).
|
||||
---*/
|
||||
if (nGroups == 6) {
|
||||
for (v = 0; v < alphaSize; v++) {
|
||||
s->len_pack[v][0] = (s->len[1][v] << 16) | s->len[0][v];
|
||||
s->len_pack[v][1] = (s->len[3][v] << 16) | s->len[2][v];
|
||||
s->len_pack[v][2] = (s->len[5][v] << 16) | s->len[4][v];
|
||||
}
|
||||
}
|
||||
|
||||
nSelectors = 0;
|
||||
totc = 0;
|
||||
gs = 0;
|
||||
while (True) {
|
||||
|
||||
/*--- Set group start & end marks. --*/
|
||||
if (gs >= s->nMTF) break;
|
||||
ge = gs + BZ_G_SIZE - 1;
|
||||
if (ge >= s->nMTF) ge = s->nMTF-1;
|
||||
|
||||
/*--
|
||||
Calculate the cost of this group as coded
|
||||
by each of the coding tables.
|
||||
--*/
|
||||
for (t = 0; t < nGroups; t++) cost[t] = 0;
|
||||
|
||||
if (nGroups == 6 && 50 == ge-gs+1) {
|
||||
/*--- fast track the common case ---*/
|
||||
register UInt32 cost01, cost23, cost45;
|
||||
register UInt16 icv;
|
||||
cost01 = cost23 = cost45 = 0;
|
||||
|
||||
# define BZ_ITER(nn) \
|
||||
icv = mtfv[gs+(nn)]; \
|
||||
cost01 += s->len_pack[icv][0]; \
|
||||
cost23 += s->len_pack[icv][1]; \
|
||||
cost45 += s->len_pack[icv][2]; \
|
||||
|
||||
BZ_ITER(0); BZ_ITER(1); BZ_ITER(2); BZ_ITER(3); BZ_ITER(4);
|
||||
BZ_ITER(5); BZ_ITER(6); BZ_ITER(7); BZ_ITER(8); BZ_ITER(9);
|
||||
BZ_ITER(10); BZ_ITER(11); BZ_ITER(12); BZ_ITER(13); BZ_ITER(14);
|
||||
BZ_ITER(15); BZ_ITER(16); BZ_ITER(17); BZ_ITER(18); BZ_ITER(19);
|
||||
BZ_ITER(20); BZ_ITER(21); BZ_ITER(22); BZ_ITER(23); BZ_ITER(24);
|
||||
BZ_ITER(25); BZ_ITER(26); BZ_ITER(27); BZ_ITER(28); BZ_ITER(29);
|
||||
BZ_ITER(30); BZ_ITER(31); BZ_ITER(32); BZ_ITER(33); BZ_ITER(34);
|
||||
BZ_ITER(35); BZ_ITER(36); BZ_ITER(37); BZ_ITER(38); BZ_ITER(39);
|
||||
BZ_ITER(40); BZ_ITER(41); BZ_ITER(42); BZ_ITER(43); BZ_ITER(44);
|
||||
BZ_ITER(45); BZ_ITER(46); BZ_ITER(47); BZ_ITER(48); BZ_ITER(49);
|
||||
|
||||
# undef BZ_ITER
|
||||
|
||||
cost[0] = cost01 & 0xffff; cost[1] = cost01 >> 16;
|
||||
cost[2] = cost23 & 0xffff; cost[3] = cost23 >> 16;
|
||||
cost[4] = cost45 & 0xffff; cost[5] = cost45 >> 16;
|
||||
|
||||
} else {
|
||||
/*--- slow version which correctly handles all situations ---*/
|
||||
for (i = gs; i <= ge; i++) {
|
||||
UInt16 icv = mtfv[i];
|
||||
for (t = 0; t < nGroups; t++) cost[t] += s->len[t][icv];
|
||||
}
|
||||
}
|
||||
|
||||
/*--
|
||||
Find the coding table which is best for this group,
|
||||
and record its identity in the selector table.
|
||||
--*/
|
||||
bc = 999999999; bt = -1;
|
||||
for (t = 0; t < nGroups; t++)
|
||||
if (cost[t] < bc) { bc = cost[t]; bt = t; };
|
||||
totc += bc;
|
||||
fave[bt]++;
|
||||
s->selector[nSelectors] = bt;
|
||||
nSelectors++;
|
||||
|
||||
/*--
|
||||
Increment the symbol frequencies for the selected table.
|
||||
--*/
|
||||
if (nGroups == 6 && 50 == ge-gs+1) {
|
||||
/*--- fast track the common case ---*/
|
||||
|
||||
# define BZ_ITUR(nn) s->rfreq[bt][ mtfv[gs+(nn)] ]++
|
||||
|
||||
BZ_ITUR(0); BZ_ITUR(1); BZ_ITUR(2); BZ_ITUR(3); BZ_ITUR(4);
|
||||
BZ_ITUR(5); BZ_ITUR(6); BZ_ITUR(7); BZ_ITUR(8); BZ_ITUR(9);
|
||||
BZ_ITUR(10); BZ_ITUR(11); BZ_ITUR(12); BZ_ITUR(13); BZ_ITUR(14);
|
||||
BZ_ITUR(15); BZ_ITUR(16); BZ_ITUR(17); BZ_ITUR(18); BZ_ITUR(19);
|
||||
BZ_ITUR(20); BZ_ITUR(21); BZ_ITUR(22); BZ_ITUR(23); BZ_ITUR(24);
|
||||
BZ_ITUR(25); BZ_ITUR(26); BZ_ITUR(27); BZ_ITUR(28); BZ_ITUR(29);
|
||||
BZ_ITUR(30); BZ_ITUR(31); BZ_ITUR(32); BZ_ITUR(33); BZ_ITUR(34);
|
||||
BZ_ITUR(35); BZ_ITUR(36); BZ_ITUR(37); BZ_ITUR(38); BZ_ITUR(39);
|
||||
BZ_ITUR(40); BZ_ITUR(41); BZ_ITUR(42); BZ_ITUR(43); BZ_ITUR(44);
|
||||
BZ_ITUR(45); BZ_ITUR(46); BZ_ITUR(47); BZ_ITUR(48); BZ_ITUR(49);
|
||||
|
||||
# undef BZ_ITUR
|
||||
|
||||
} else {
|
||||
/*--- slow version which correctly handles all situations ---*/
|
||||
for (i = gs; i <= ge; i++)
|
||||
s->rfreq[bt][ mtfv[i] ]++;
|
||||
}
|
||||
|
||||
gs = ge+1;
|
||||
}
|
||||
if (s->verbosity >= 3) {
|
||||
VPrintf2 ( " pass %d: size is %d, grp uses are ",
|
||||
iter+1, totc/8 );
|
||||
for (t = 0; t < nGroups; t++)
|
||||
VPrintf1 ( "%d ", fave[t] );
|
||||
VPrintf0 ( "\n" );
|
||||
}
|
||||
|
||||
/*--
|
||||
Recompute the tables based on the accumulated frequencies.
|
||||
--*/
|
||||
for (t = 0; t < nGroups; t++)
|
||||
BZ2_hbMakeCodeLengths ( &(s->len[t][0]), &(s->rfreq[t][0]),
|
||||
alphaSize, 20 );
|
||||
}
|
||||
|
||||
|
||||
AssertH( nGroups < 8, 3002 );
|
||||
AssertH( nSelectors < 32768 &&
|
||||
nSelectors <= (2 + (900000 / BZ_G_SIZE)),
|
||||
3003 );
|
||||
|
||||
|
||||
/*--- Compute MTF values for the selectors. ---*/
|
||||
{
|
||||
UChar pos[BZ_N_GROUPS], ll_i, tmp2, tmp;
|
||||
for (i = 0; i < nGroups; i++) pos[i] = i;
|
||||
for (i = 0; i < nSelectors; i++) {
|
||||
ll_i = s->selector[i];
|
||||
j = 0;
|
||||
tmp = pos[j];
|
||||
while ( ll_i != tmp ) {
|
||||
j++;
|
||||
tmp2 = tmp;
|
||||
tmp = pos[j];
|
||||
pos[j] = tmp2;
|
||||
};
|
||||
pos[0] = tmp;
|
||||
s->selectorMtf[i] = j;
|
||||
}
|
||||
};
|
||||
|
||||
/*--- Assign actual codes for the tables. --*/
|
||||
for (t = 0; t < nGroups; t++) {
|
||||
minLen = 32;
|
||||
maxLen = 0;
|
||||
for (i = 0; i < alphaSize; i++) {
|
||||
if (s->len[t][i] > maxLen) maxLen = s->len[t][i];
|
||||
if (s->len[t][i] < minLen) minLen = s->len[t][i];
|
||||
}
|
||||
AssertH ( !(maxLen > 20), 3004 );
|
||||
AssertH ( !(minLen < 1), 3005 );
|
||||
BZ2_hbAssignCodes ( &(s->code[t][0]), &(s->len[t][0]),
|
||||
minLen, maxLen, alphaSize );
|
||||
}
|
||||
|
||||
/*--- Transmit the mapping table. ---*/
|
||||
{
|
||||
Bool inUse16[16];
|
||||
for (i = 0; i < 16; i++) {
|
||||
inUse16[i] = False;
|
||||
for (j = 0; j < 16; j++)
|
||||
if (s->inUse[i * 16 + j]) inUse16[i] = True;
|
||||
}
|
||||
|
||||
nBytes = s->numZ;
|
||||
for (i = 0; i < 16; i++)
|
||||
if (inUse16[i]) bsW(s,1,1); else bsW(s,1,0);
|
||||
|
||||
for (i = 0; i < 16; i++)
|
||||
if (inUse16[i])
|
||||
for (j = 0; j < 16; j++) {
|
||||
if (s->inUse[i * 16 + j]) bsW(s,1,1); else bsW(s,1,0);
|
||||
}
|
||||
|
||||
if (s->verbosity >= 3)
|
||||
VPrintf1( " bytes: mapping %d, ", s->numZ-nBytes );
|
||||
}
|
||||
|
||||
/*--- Now the selectors. ---*/
|
||||
nBytes = s->numZ;
|
||||
bsW ( s, 3, nGroups );
|
||||
bsW ( s, 15, nSelectors );
|
||||
for (i = 0; i < nSelectors; i++) {
|
||||
for (j = 0; j < s->selectorMtf[i]; j++) bsW(s,1,1);
|
||||
bsW(s,1,0);
|
||||
}
|
||||
if (s->verbosity >= 3)
|
||||
VPrintf1( "selectors %d, ", s->numZ-nBytes );
|
||||
|
||||
/*--- Now the coding tables. ---*/
|
||||
nBytes = s->numZ;
|
||||
|
||||
for (t = 0; t < nGroups; t++) {
|
||||
Int32 curr = s->len[t][0];
|
||||
bsW ( s, 5, curr );
|
||||
for (i = 0; i < alphaSize; i++) {
|
||||
while (curr < s->len[t][i]) { bsW(s,2,2); curr++; /* 10 */ };
|
||||
while (curr > s->len[t][i]) { bsW(s,2,3); curr--; /* 11 */ };
|
||||
bsW ( s, 1, 0 );
|
||||
}
|
||||
}
|
||||
|
||||
if (s->verbosity >= 3)
|
||||
VPrintf1 ( "code lengths %d, ", s->numZ-nBytes );
|
||||
|
||||
/*--- And finally, the block data proper ---*/
|
||||
nBytes = s->numZ;
|
||||
selCtr = 0;
|
||||
gs = 0;
|
||||
while (True) {
|
||||
if (gs >= s->nMTF) break;
|
||||
ge = gs + BZ_G_SIZE - 1;
|
||||
if (ge >= s->nMTF) ge = s->nMTF-1;
|
||||
AssertH ( s->selector[selCtr] < nGroups, 3006 );
|
||||
|
||||
if (nGroups == 6 && 50 == ge-gs+1) {
|
||||
/*--- fast track the common case ---*/
|
||||
UInt16 mtfv_i;
|
||||
UChar* s_len_sel_selCtr
|
||||
= &(s->len[s->selector[selCtr]][0]);
|
||||
Int32* s_code_sel_selCtr
|
||||
= &(s->code[s->selector[selCtr]][0]);
|
||||
|
||||
# define BZ_ITAH(nn) \
|
||||
mtfv_i = mtfv[gs+(nn)]; \
|
||||
bsW ( s, \
|
||||
s_len_sel_selCtr[mtfv_i], \
|
||||
s_code_sel_selCtr[mtfv_i] )
|
||||
|
||||
BZ_ITAH(0); BZ_ITAH(1); BZ_ITAH(2); BZ_ITAH(3); BZ_ITAH(4);
|
||||
BZ_ITAH(5); BZ_ITAH(6); BZ_ITAH(7); BZ_ITAH(8); BZ_ITAH(9);
|
||||
BZ_ITAH(10); BZ_ITAH(11); BZ_ITAH(12); BZ_ITAH(13); BZ_ITAH(14);
|
||||
BZ_ITAH(15); BZ_ITAH(16); BZ_ITAH(17); BZ_ITAH(18); BZ_ITAH(19);
|
||||
BZ_ITAH(20); BZ_ITAH(21); BZ_ITAH(22); BZ_ITAH(23); BZ_ITAH(24);
|
||||
BZ_ITAH(25); BZ_ITAH(26); BZ_ITAH(27); BZ_ITAH(28); BZ_ITAH(29);
|
||||
BZ_ITAH(30); BZ_ITAH(31); BZ_ITAH(32); BZ_ITAH(33); BZ_ITAH(34);
|
||||
BZ_ITAH(35); BZ_ITAH(36); BZ_ITAH(37); BZ_ITAH(38); BZ_ITAH(39);
|
||||
BZ_ITAH(40); BZ_ITAH(41); BZ_ITAH(42); BZ_ITAH(43); BZ_ITAH(44);
|
||||
BZ_ITAH(45); BZ_ITAH(46); BZ_ITAH(47); BZ_ITAH(48); BZ_ITAH(49);
|
||||
|
||||
# undef BZ_ITAH
|
||||
|
||||
} else {
|
||||
/*--- slow version which correctly handles all situations ---*/
|
||||
for (i = gs; i <= ge; i++) {
|
||||
bsW ( s,
|
||||
s->len [s->selector[selCtr]] [mtfv[i]],
|
||||
s->code [s->selector[selCtr]] [mtfv[i]] );
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
gs = ge+1;
|
||||
selCtr++;
|
||||
}
|
||||
AssertH( selCtr == nSelectors, 3007 );
|
||||
|
||||
if (s->verbosity >= 3)
|
||||
VPrintf1( "codes %d\n", s->numZ-nBytes );
|
||||
}
|
||||
|
||||
|
||||
/*---------------------------------------------------*/
|
||||
void BZ2_compressBlock ( EState* s, Bool is_last_block )
|
||||
{
|
||||
if (s->nblock > 0) {
|
||||
|
||||
BZ_FINALISE_CRC ( s->blockCRC );
|
||||
s->combinedCRC = (s->combinedCRC << 1) | (s->combinedCRC >> 31);
|
||||
s->combinedCRC ^= s->blockCRC;
|
||||
if (s->blockNo > 1) s->numZ = 0;
|
||||
|
||||
if (s->verbosity >= 2)
|
||||
VPrintf4( " block %d: crc = 0x%8x, "
|
||||
"combined CRC = 0x%8x, size = %d\n",
|
||||
s->blockNo, s->blockCRC, s->combinedCRC, s->nblock );
|
||||
|
||||
BZ2_blockSort ( s );
|
||||
}
|
||||
|
||||
s->zbits = (UChar*) (&((UChar*)s->arr2)[s->nblock]);
|
||||
|
||||
/*-- If this is the first block, create the stream header. --*/
|
||||
if (s->blockNo == 1) {
|
||||
BZ2_bsInitWrite ( s );
|
||||
bsPutUChar ( s, BZ_HDR_B );
|
||||
bsPutUChar ( s, BZ_HDR_Z );
|
||||
bsPutUChar ( s, BZ_HDR_h );
|
||||
bsPutUChar ( s, (UChar)(BZ_HDR_0 + s->blockSize100k) );
|
||||
}
|
||||
|
||||
if (s->nblock > 0) {
|
||||
|
||||
bsPutUChar ( s, 0x31 ); bsPutUChar ( s, 0x41 );
|
||||
bsPutUChar ( s, 0x59 ); bsPutUChar ( s, 0x26 );
|
||||
bsPutUChar ( s, 0x53 ); bsPutUChar ( s, 0x59 );
|
||||
|
||||
/*-- Now the block's CRC, so it is in a known place. --*/
|
||||
bsPutUInt32 ( s, s->blockCRC );
|
||||
|
||||
/*--
|
||||
Now a single bit indicating (non-)randomisation.
|
||||
As of version 0.9.5, we use a better sorting algorithm
|
||||
which makes randomisation unnecessary. So always set
|
||||
the randomised bit to 'no'. Of course, the decoder
|
||||
still needs to be able to handle randomised blocks
|
||||
so as to maintain backwards compatibility with
|
||||
older versions of bzip2.
|
||||
--*/
|
||||
bsW(s,1,0);
|
||||
|
||||
bsW ( s, 24, s->origPtr );
|
||||
generateMTFValues ( s );
|
||||
sendMTFValues ( s );
|
||||
}
|
||||
|
||||
|
||||
/*-- If this is the last block, add the stream trailer. --*/
|
||||
if (is_last_block) {
|
||||
|
||||
bsPutUChar ( s, 0x17 ); bsPutUChar ( s, 0x72 );
|
||||
bsPutUChar ( s, 0x45 ); bsPutUChar ( s, 0x38 );
|
||||
bsPutUChar ( s, 0x50 ); bsPutUChar ( s, 0x90 );
|
||||
bsPutUInt32 ( s, s->combinedCRC );
|
||||
if (s->verbosity >= 2)
|
||||
VPrintf1( " final combined CRC = 0x%x\n ", s->combinedCRC );
|
||||
bsFinishWrite ( s );
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/*-------------------------------------------------------------*/
|
||||
/*--- end compress.c ---*/
|
||||
/*-------------------------------------------------------------*/
|
||||
@@ -0,0 +1,144 @@
|
||||
|
||||
/*-------------------------------------------------------------*/
|
||||
/*--- Table for doing CRCs ---*/
|
||||
/*--- crctable.c ---*/
|
||||
/*-------------------------------------------------------------*/
|
||||
|
||||
/*--
|
||||
This file is a part of bzip2 and/or libbzip2, a program and
|
||||
library for lossless, block-sorting data compression.
|
||||
|
||||
Copyright (C) 1996-2002 Julian R Seward. 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. 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@acm.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"
|
||||
|
||||
/*--
|
||||
I think this is an implementation of the AUTODIN-II,
|
||||
Ethernet & FDDI 32-bit CRC standard. Vaguely derived
|
||||
from code by Rob Warnock, in Section 51 of the
|
||||
comp.compression FAQ.
|
||||
--*/
|
||||
|
||||
UInt32 BZ2_crc32Table[256] = {
|
||||
|
||||
/*-- Ugly, innit? --*/
|
||||
|
||||
0x00000000L, 0x04c11db7L, 0x09823b6eL, 0x0d4326d9L,
|
||||
0x130476dcL, 0x17c56b6bL, 0x1a864db2L, 0x1e475005L,
|
||||
0x2608edb8L, 0x22c9f00fL, 0x2f8ad6d6L, 0x2b4bcb61L,
|
||||
0x350c9b64L, 0x31cd86d3L, 0x3c8ea00aL, 0x384fbdbdL,
|
||||
0x4c11db70L, 0x48d0c6c7L, 0x4593e01eL, 0x4152fda9L,
|
||||
0x5f15adacL, 0x5bd4b01bL, 0x569796c2L, 0x52568b75L,
|
||||
0x6a1936c8L, 0x6ed82b7fL, 0x639b0da6L, 0x675a1011L,
|
||||
0x791d4014L, 0x7ddc5da3L, 0x709f7b7aL, 0x745e66cdL,
|
||||
0x9823b6e0L, 0x9ce2ab57L, 0x91a18d8eL, 0x95609039L,
|
||||
0x8b27c03cL, 0x8fe6dd8bL, 0x82a5fb52L, 0x8664e6e5L,
|
||||
0xbe2b5b58L, 0xbaea46efL, 0xb7a96036L, 0xb3687d81L,
|
||||
0xad2f2d84L, 0xa9ee3033L, 0xa4ad16eaL, 0xa06c0b5dL,
|
||||
0xd4326d90L, 0xd0f37027L, 0xddb056feL, 0xd9714b49L,
|
||||
0xc7361b4cL, 0xc3f706fbL, 0xceb42022L, 0xca753d95L,
|
||||
0xf23a8028L, 0xf6fb9d9fL, 0xfbb8bb46L, 0xff79a6f1L,
|
||||
0xe13ef6f4L, 0xe5ffeb43L, 0xe8bccd9aL, 0xec7dd02dL,
|
||||
0x34867077L, 0x30476dc0L, 0x3d044b19L, 0x39c556aeL,
|
||||
0x278206abL, 0x23431b1cL, 0x2e003dc5L, 0x2ac12072L,
|
||||
0x128e9dcfL, 0x164f8078L, 0x1b0ca6a1L, 0x1fcdbb16L,
|
||||
0x018aeb13L, 0x054bf6a4L, 0x0808d07dL, 0x0cc9cdcaL,
|
||||
0x7897ab07L, 0x7c56b6b0L, 0x71159069L, 0x75d48ddeL,
|
||||
0x6b93dddbL, 0x6f52c06cL, 0x6211e6b5L, 0x66d0fb02L,
|
||||
0x5e9f46bfL, 0x5a5e5b08L, 0x571d7dd1L, 0x53dc6066L,
|
||||
0x4d9b3063L, 0x495a2dd4L, 0x44190b0dL, 0x40d816baL,
|
||||
0xaca5c697L, 0xa864db20L, 0xa527fdf9L, 0xa1e6e04eL,
|
||||
0xbfa1b04bL, 0xbb60adfcL, 0xb6238b25L, 0xb2e29692L,
|
||||
0x8aad2b2fL, 0x8e6c3698L, 0x832f1041L, 0x87ee0df6L,
|
||||
0x99a95df3L, 0x9d684044L, 0x902b669dL, 0x94ea7b2aL,
|
||||
0xe0b41de7L, 0xe4750050L, 0xe9362689L, 0xedf73b3eL,
|
||||
0xf3b06b3bL, 0xf771768cL, 0xfa325055L, 0xfef34de2L,
|
||||
0xc6bcf05fL, 0xc27dede8L, 0xcf3ecb31L, 0xcbffd686L,
|
||||
0xd5b88683L, 0xd1799b34L, 0xdc3abdedL, 0xd8fba05aL,
|
||||
0x690ce0eeL, 0x6dcdfd59L, 0x608edb80L, 0x644fc637L,
|
||||
0x7a089632L, 0x7ec98b85L, 0x738aad5cL, 0x774bb0ebL,
|
||||
0x4f040d56L, 0x4bc510e1L, 0x46863638L, 0x42472b8fL,
|
||||
0x5c007b8aL, 0x58c1663dL, 0x558240e4L, 0x51435d53L,
|
||||
0x251d3b9eL, 0x21dc2629L, 0x2c9f00f0L, 0x285e1d47L,
|
||||
0x36194d42L, 0x32d850f5L, 0x3f9b762cL, 0x3b5a6b9bL,
|
||||
0x0315d626L, 0x07d4cb91L, 0x0a97ed48L, 0x0e56f0ffL,
|
||||
0x1011a0faL, 0x14d0bd4dL, 0x19939b94L, 0x1d528623L,
|
||||
0xf12f560eL, 0xf5ee4bb9L, 0xf8ad6d60L, 0xfc6c70d7L,
|
||||
0xe22b20d2L, 0xe6ea3d65L, 0xeba91bbcL, 0xef68060bL,
|
||||
0xd727bbb6L, 0xd3e6a601L, 0xdea580d8L, 0xda649d6fL,
|
||||
0xc423cd6aL, 0xc0e2d0ddL, 0xcda1f604L, 0xc960ebb3L,
|
||||
0xbd3e8d7eL, 0xb9ff90c9L, 0xb4bcb610L, 0xb07daba7L,
|
||||
0xae3afba2L, 0xaafbe615L, 0xa7b8c0ccL, 0xa379dd7bL,
|
||||
0x9b3660c6L, 0x9ff77d71L, 0x92b45ba8L, 0x9675461fL,
|
||||
0x8832161aL, 0x8cf30badL, 0x81b02d74L, 0x857130c3L,
|
||||
0x5d8a9099L, 0x594b8d2eL, 0x5408abf7L, 0x50c9b640L,
|
||||
0x4e8ee645L, 0x4a4ffbf2L, 0x470cdd2bL, 0x43cdc09cL,
|
||||
0x7b827d21L, 0x7f436096L, 0x7200464fL, 0x76c15bf8L,
|
||||
0x68860bfdL, 0x6c47164aL, 0x61043093L, 0x65c52d24L,
|
||||
0x119b4be9L, 0x155a565eL, 0x18197087L, 0x1cd86d30L,
|
||||
0x029f3d35L, 0x065e2082L, 0x0b1d065bL, 0x0fdc1becL,
|
||||
0x3793a651L, 0x3352bbe6L, 0x3e119d3fL, 0x3ad08088L,
|
||||
0x2497d08dL, 0x2056cd3aL, 0x2d15ebe3L, 0x29d4f654L,
|
||||
0xc5a92679L, 0xc1683bceL, 0xcc2b1d17L, 0xc8ea00a0L,
|
||||
0xd6ad50a5L, 0xd26c4d12L, 0xdf2f6bcbL, 0xdbee767cL,
|
||||
0xe3a1cbc1L, 0xe760d676L, 0xea23f0afL, 0xeee2ed18L,
|
||||
0xf0a5bd1dL, 0xf464a0aaL, 0xf9278673L, 0xfde69bc4L,
|
||||
0x89b8fd09L, 0x8d79e0beL, 0x803ac667L, 0x84fbdbd0L,
|
||||
0x9abc8bd5L, 0x9e7d9662L, 0x933eb0bbL, 0x97ffad0cL,
|
||||
0xafb010b1L, 0xab710d06L, 0xa6322bdfL, 0xa2f33668L,
|
||||
0xbcb4666dL, 0xb8757bdaL, 0xb5365d03L, 0xb1f740b4L
|
||||
};
|
||||
|
||||
|
||||
/*-------------------------------------------------------------*/
|
||||
/*--- end crctable.c ---*/
|
||||
/*-------------------------------------------------------------*/
|
||||
@@ -0,0 +1,660 @@
|
||||
|
||||
/*-------------------------------------------------------------*/
|
||||
/*--- Decompression machinery ---*/
|
||||
/*--- decompress.c ---*/
|
||||
/*-------------------------------------------------------------*/
|
||||
|
||||
/*--
|
||||
This file is a part of bzip2 and/or libbzip2, a program and
|
||||
library for lossless, block-sorting data compression.
|
||||
|
||||
Copyright (C) 1996-2002 Julian R Seward. 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. 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@acm.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"
|
||||
|
||||
|
||||
/*---------------------------------------------------*/
|
||||
static
|
||||
void makeMaps_d ( DState* s )
|
||||
{
|
||||
Int32 i;
|
||||
s->nInUse = 0;
|
||||
for (i = 0; i < 256; i++)
|
||||
if (s->inUse[i]) {
|
||||
s->seqToUnseq[s->nInUse] = i;
|
||||
s->nInUse++;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/*---------------------------------------------------*/
|
||||
#define RETURN(rrr) \
|
||||
{ retVal = rrr; goto save_state_and_return; };
|
||||
|
||||
#define GET_BITS(lll,vvv,nnn) \
|
||||
case lll: s->state = lll; \
|
||||
while (True) { \
|
||||
if (s->bsLive >= nnn) { \
|
||||
UInt32 v; \
|
||||
v = (s->bsBuff >> \
|
||||
(s->bsLive-nnn)) & ((1 << nnn)-1); \
|
||||
s->bsLive -= nnn; \
|
||||
vvv = v; \
|
||||
break; \
|
||||
} \
|
||||
if (s->strm->avail_in == 0) RETURN(BZ_OK); \
|
||||
s->bsBuff \
|
||||
= (s->bsBuff << 8) | \
|
||||
((UInt32) \
|
||||
(*((UChar*)(s->strm->next_in)))); \
|
||||
s->bsLive += 8; \
|
||||
s->strm->next_in++; \
|
||||
s->strm->avail_in--; \
|
||||
s->strm->total_in_lo32++; \
|
||||
if (s->strm->total_in_lo32 == 0) \
|
||||
s->strm->total_in_hi32++; \
|
||||
}
|
||||
|
||||
#define GET_UCHAR(lll,uuu) \
|
||||
GET_BITS(lll,uuu,8)
|
||||
|
||||
#define GET_BIT(lll,uuu) \
|
||||
GET_BITS(lll,uuu,1)
|
||||
|
||||
/*---------------------------------------------------*/
|
||||
#define GET_MTF_VAL(label1,label2,lval) \
|
||||
{ \
|
||||
if (groupPos == 0) { \
|
||||
groupNo++; \
|
||||
if (groupNo >= nSelectors) \
|
||||
RETURN(BZ_DATA_ERROR); \
|
||||
groupPos = BZ_G_SIZE; \
|
||||
gSel = s->selector[groupNo]; \
|
||||
gMinlen = s->minLens[gSel]; \
|
||||
gLimit = &(s->limit[gSel][0]); \
|
||||
gPerm = &(s->perm[gSel][0]); \
|
||||
gBase = &(s->base[gSel][0]); \
|
||||
} \
|
||||
groupPos--; \
|
||||
zn = gMinlen; \
|
||||
GET_BITS(label1, zvec, zn); \
|
||||
while (1) { \
|
||||
if (zn > 20 /* the longest code */) \
|
||||
RETURN(BZ_DATA_ERROR); \
|
||||
if (zvec <= gLimit[zn]) break; \
|
||||
zn++; \
|
||||
GET_BIT(label2, zj); \
|
||||
zvec = (zvec << 1) | zj; \
|
||||
}; \
|
||||
if (zvec - gBase[zn] < 0 \
|
||||
|| zvec - gBase[zn] >= BZ_MAX_ALPHA_SIZE) \
|
||||
RETURN(BZ_DATA_ERROR); \
|
||||
lval = gPerm[zvec - gBase[zn]]; \
|
||||
}
|
||||
|
||||
|
||||
/*---------------------------------------------------*/
|
||||
Int32 BZ2_decompress ( DState* s )
|
||||
{
|
||||
UChar uc;
|
||||
Int32 retVal;
|
||||
Int32 minLen, maxLen;
|
||||
bz_stream* strm = s->strm;
|
||||
|
||||
/* stuff that needs to be saved/restored */
|
||||
Int32 i;
|
||||
Int32 j;
|
||||
Int32 t;
|
||||
Int32 alphaSize;
|
||||
Int32 nGroups;
|
||||
Int32 nSelectors;
|
||||
Int32 EOB;
|
||||
Int32 groupNo;
|
||||
Int32 groupPos;
|
||||
Int32 nextSym;
|
||||
Int32 nblockMAX;
|
||||
Int32 nblock;
|
||||
Int32 es;
|
||||
Int32 N;
|
||||
Int32 curr;
|
||||
Int32 zt;
|
||||
Int32 zn;
|
||||
Int32 zvec;
|
||||
Int32 zj;
|
||||
Int32 gSel;
|
||||
Int32 gMinlen;
|
||||
Int32* gLimit;
|
||||
Int32* gBase;
|
||||
Int32* gPerm;
|
||||
|
||||
if (s->state == BZ_X_MAGIC_1) {
|
||||
/*initialise the save area*/
|
||||
s->save_i = 0;
|
||||
s->save_j = 0;
|
||||
s->save_t = 0;
|
||||
s->save_alphaSize = 0;
|
||||
s->save_nGroups = 0;
|
||||
s->save_nSelectors = 0;
|
||||
s->save_EOB = 0;
|
||||
s->save_groupNo = 0;
|
||||
s->save_groupPos = 0;
|
||||
s->save_nextSym = 0;
|
||||
s->save_nblockMAX = 0;
|
||||
s->save_nblock = 0;
|
||||
s->save_es = 0;
|
||||
s->save_N = 0;
|
||||
s->save_curr = 0;
|
||||
s->save_zt = 0;
|
||||
s->save_zn = 0;
|
||||
s->save_zvec = 0;
|
||||
s->save_zj = 0;
|
||||
s->save_gSel = 0;
|
||||
s->save_gMinlen = 0;
|
||||
s->save_gLimit = NULL;
|
||||
s->save_gBase = NULL;
|
||||
s->save_gPerm = NULL;
|
||||
}
|
||||
|
||||
/*restore from the save area*/
|
||||
i = s->save_i;
|
||||
j = s->save_j;
|
||||
t = s->save_t;
|
||||
alphaSize = s->save_alphaSize;
|
||||
nGroups = s->save_nGroups;
|
||||
nSelectors = s->save_nSelectors;
|
||||
EOB = s->save_EOB;
|
||||
groupNo = s->save_groupNo;
|
||||
groupPos = s->save_groupPos;
|
||||
nextSym = s->save_nextSym;
|
||||
nblockMAX = s->save_nblockMAX;
|
||||
nblock = s->save_nblock;
|
||||
es = s->save_es;
|
||||
N = s->save_N;
|
||||
curr = s->save_curr;
|
||||
zt = s->save_zt;
|
||||
zn = s->save_zn;
|
||||
zvec = s->save_zvec;
|
||||
zj = s->save_zj;
|
||||
gSel = s->save_gSel;
|
||||
gMinlen = s->save_gMinlen;
|
||||
gLimit = s->save_gLimit;
|
||||
gBase = s->save_gBase;
|
||||
gPerm = s->save_gPerm;
|
||||
|
||||
retVal = BZ_OK;
|
||||
|
||||
switch (s->state) {
|
||||
|
||||
GET_UCHAR(BZ_X_MAGIC_1, uc);
|
||||
if (uc != BZ_HDR_B) RETURN(BZ_DATA_ERROR_MAGIC);
|
||||
|
||||
GET_UCHAR(BZ_X_MAGIC_2, uc);
|
||||
if (uc != BZ_HDR_Z) RETURN(BZ_DATA_ERROR_MAGIC);
|
||||
|
||||
GET_UCHAR(BZ_X_MAGIC_3, uc)
|
||||
if (uc != BZ_HDR_h) RETURN(BZ_DATA_ERROR_MAGIC);
|
||||
|
||||
GET_BITS(BZ_X_MAGIC_4, s->blockSize100k, 8)
|
||||
if (s->blockSize100k < (BZ_HDR_0 + 1) ||
|
||||
s->blockSize100k > (BZ_HDR_0 + 9)) RETURN(BZ_DATA_ERROR_MAGIC);
|
||||
s->blockSize100k -= BZ_HDR_0;
|
||||
|
||||
if (s->smallDecompress) {
|
||||
s->ll16 = BZALLOC( s->blockSize100k * 100000 * sizeof(UInt16) );
|
||||
s->ll4 = BZALLOC(
|
||||
((1 + s->blockSize100k * 100000) >> 1) * sizeof(UChar)
|
||||
);
|
||||
if (s->ll16 == NULL || s->ll4 == NULL) RETURN(BZ_MEM_ERROR);
|
||||
} else {
|
||||
s->tt = BZALLOC( s->blockSize100k * 100000 * sizeof(Int32) );
|
||||
if (s->tt == NULL) RETURN(BZ_MEM_ERROR);
|
||||
}
|
||||
|
||||
GET_UCHAR(BZ_X_BLKHDR_1, uc);
|
||||
|
||||
if (uc == 0x17) goto endhdr_2;
|
||||
if (uc != 0x31) RETURN(BZ_DATA_ERROR);
|
||||
GET_UCHAR(BZ_X_BLKHDR_2, uc);
|
||||
if (uc != 0x41) RETURN(BZ_DATA_ERROR);
|
||||
GET_UCHAR(BZ_X_BLKHDR_3, uc);
|
||||
if (uc != 0x59) RETURN(BZ_DATA_ERROR);
|
||||
GET_UCHAR(BZ_X_BLKHDR_4, uc);
|
||||
if (uc != 0x26) RETURN(BZ_DATA_ERROR);
|
||||
GET_UCHAR(BZ_X_BLKHDR_5, uc);
|
||||
if (uc != 0x53) RETURN(BZ_DATA_ERROR);
|
||||
GET_UCHAR(BZ_X_BLKHDR_6, uc);
|
||||
if (uc != 0x59) RETURN(BZ_DATA_ERROR);
|
||||
|
||||
s->currBlockNo++;
|
||||
if (s->verbosity >= 2)
|
||||
VPrintf1 ( "\n [%d: huff+mtf ", s->currBlockNo );
|
||||
|
||||
s->storedBlockCRC = 0;
|
||||
GET_UCHAR(BZ_X_BCRC_1, uc);
|
||||
s->storedBlockCRC = (s->storedBlockCRC << 8) | ((UInt32)uc);
|
||||
GET_UCHAR(BZ_X_BCRC_2, uc);
|
||||
s->storedBlockCRC = (s->storedBlockCRC << 8) | ((UInt32)uc);
|
||||
GET_UCHAR(BZ_X_BCRC_3, uc);
|
||||
s->storedBlockCRC = (s->storedBlockCRC << 8) | ((UInt32)uc);
|
||||
GET_UCHAR(BZ_X_BCRC_4, uc);
|
||||
s->storedBlockCRC = (s->storedBlockCRC << 8) | ((UInt32)uc);
|
||||
|
||||
GET_BITS(BZ_X_RANDBIT, s->blockRandomised, 1);
|
||||
|
||||
s->origPtr = 0;
|
||||
GET_UCHAR(BZ_X_ORIGPTR_1, uc);
|
||||
s->origPtr = (s->origPtr << 8) | ((Int32)uc);
|
||||
GET_UCHAR(BZ_X_ORIGPTR_2, uc);
|
||||
s->origPtr = (s->origPtr << 8) | ((Int32)uc);
|
||||
GET_UCHAR(BZ_X_ORIGPTR_3, uc);
|
||||
s->origPtr = (s->origPtr << 8) | ((Int32)uc);
|
||||
|
||||
if (s->origPtr < 0)
|
||||
RETURN(BZ_DATA_ERROR);
|
||||
if (s->origPtr > 10 + 100000*s->blockSize100k)
|
||||
RETURN(BZ_DATA_ERROR);
|
||||
|
||||
/*--- Receive the mapping table ---*/
|
||||
for (i = 0; i < 16; i++) {
|
||||
GET_BIT(BZ_X_MAPPING_1, uc);
|
||||
if (uc == 1)
|
||||
s->inUse16[i] = True; else
|
||||
s->inUse16[i] = False;
|
||||
}
|
||||
|
||||
for (i = 0; i < 256; i++) s->inUse[i] = False;
|
||||
|
||||
for (i = 0; i < 16; i++)
|
||||
if (s->inUse16[i])
|
||||
for (j = 0; j < 16; j++) {
|
||||
GET_BIT(BZ_X_MAPPING_2, uc);
|
||||
if (uc == 1) s->inUse[i * 16 + j] = True;
|
||||
}
|
||||
makeMaps_d ( s );
|
||||
if (s->nInUse == 0) RETURN(BZ_DATA_ERROR);
|
||||
alphaSize = s->nInUse+2;
|
||||
|
||||
/*--- Now the selectors ---*/
|
||||
GET_BITS(BZ_X_SELECTOR_1, nGroups, 3);
|
||||
if (nGroups < 2 || nGroups > 6) RETURN(BZ_DATA_ERROR);
|
||||
GET_BITS(BZ_X_SELECTOR_2, nSelectors, 15);
|
||||
if (nSelectors < 1) RETURN(BZ_DATA_ERROR);
|
||||
for (i = 0; i < nSelectors; i++) {
|
||||
j = 0;
|
||||
while (True) {
|
||||
GET_BIT(BZ_X_SELECTOR_3, uc);
|
||||
if (uc == 0) break;
|
||||
j++;
|
||||
if (j >= nGroups) RETURN(BZ_DATA_ERROR);
|
||||
}
|
||||
s->selectorMtf[i] = j;
|
||||
}
|
||||
|
||||
/*--- Undo the MTF values for the selectors. ---*/
|
||||
{
|
||||
UChar pos[BZ_N_GROUPS], tmp, v;
|
||||
for (v = 0; v < nGroups; v++) pos[v] = v;
|
||||
|
||||
for (i = 0; i < nSelectors; i++) {
|
||||
v = s->selectorMtf[i];
|
||||
tmp = pos[v];
|
||||
while (v > 0) { pos[v] = pos[v-1]; v--; }
|
||||
pos[0] = tmp;
|
||||
s->selector[i] = tmp;
|
||||
}
|
||||
}
|
||||
|
||||
/*--- Now the coding tables ---*/
|
||||
for (t = 0; t < nGroups; t++) {
|
||||
GET_BITS(BZ_X_CODING_1, curr, 5);
|
||||
for (i = 0; i < alphaSize; i++) {
|
||||
while (True) {
|
||||
if (curr < 1 || curr > 20) RETURN(BZ_DATA_ERROR);
|
||||
GET_BIT(BZ_X_CODING_2, uc);
|
||||
if (uc == 0) break;
|
||||
GET_BIT(BZ_X_CODING_3, uc);
|
||||
if (uc == 0) curr++; else curr--;
|
||||
}
|
||||
s->len[t][i] = curr;
|
||||
}
|
||||
}
|
||||
|
||||
/*--- Create the Huffman decoding tables ---*/
|
||||
for (t = 0; t < nGroups; t++) {
|
||||
minLen = 32;
|
||||
maxLen = 0;
|
||||
for (i = 0; i < alphaSize; i++) {
|
||||
if (s->len[t][i] > maxLen) maxLen = s->len[t][i];
|
||||
if (s->len[t][i] < minLen) minLen = s->len[t][i];
|
||||
}
|
||||
BZ2_hbCreateDecodeTables (
|
||||
&(s->limit[t][0]),
|
||||
&(s->base[t][0]),
|
||||
&(s->perm[t][0]),
|
||||
&(s->len[t][0]),
|
||||
minLen, maxLen, alphaSize
|
||||
);
|
||||
s->minLens[t] = minLen;
|
||||
}
|
||||
|
||||
/*--- Now the MTF values ---*/
|
||||
|
||||
EOB = s->nInUse+1;
|
||||
nblockMAX = 100000 * s->blockSize100k;
|
||||
groupNo = -1;
|
||||
groupPos = 0;
|
||||
|
||||
for (i = 0; i <= 255; i++) s->unzftab[i] = 0;
|
||||
|
||||
/*-- MTF init --*/
|
||||
{
|
||||
Int32 ii, jj, kk;
|
||||
kk = MTFA_SIZE-1;
|
||||
for (ii = 256 / MTFL_SIZE - 1; ii >= 0; ii--) {
|
||||
for (jj = MTFL_SIZE-1; jj >= 0; jj--) {
|
||||
s->mtfa[kk] = (UChar)(ii * MTFL_SIZE + jj);
|
||||
kk--;
|
||||
}
|
||||
s->mtfbase[ii] = kk + 1;
|
||||
}
|
||||
}
|
||||
/*-- end MTF init --*/
|
||||
|
||||
nblock = 0;
|
||||
GET_MTF_VAL(BZ_X_MTF_1, BZ_X_MTF_2, nextSym);
|
||||
|
||||
while (True) {
|
||||
|
||||
if (nextSym == EOB) break;
|
||||
|
||||
if (nextSym == BZ_RUNA || nextSym == BZ_RUNB) {
|
||||
|
||||
es = -1;
|
||||
N = 1;
|
||||
do {
|
||||
if (nextSym == BZ_RUNA) es = es + (0+1) * N; else
|
||||
if (nextSym == BZ_RUNB) es = es + (1+1) * N;
|
||||
N = N * 2;
|
||||
GET_MTF_VAL(BZ_X_MTF_3, BZ_X_MTF_4, nextSym);
|
||||
}
|
||||
while (nextSym == BZ_RUNA || nextSym == BZ_RUNB);
|
||||
|
||||
es++;
|
||||
uc = s->seqToUnseq[ s->mtfa[s->mtfbase[0]] ];
|
||||
s->unzftab[uc] += es;
|
||||
|
||||
if (s->smallDecompress)
|
||||
while (es > 0) {
|
||||
if (nblock >= nblockMAX) RETURN(BZ_DATA_ERROR);
|
||||
s->ll16[nblock] = (UInt16)uc;
|
||||
nblock++;
|
||||
es--;
|
||||
}
|
||||
else
|
||||
while (es > 0) {
|
||||
if (nblock >= nblockMAX) RETURN(BZ_DATA_ERROR);
|
||||
s->tt[nblock] = (UInt32)uc;
|
||||
nblock++;
|
||||
es--;
|
||||
};
|
||||
|
||||
continue;
|
||||
|
||||
} else {
|
||||
|
||||
if (nblock >= nblockMAX) RETURN(BZ_DATA_ERROR);
|
||||
|
||||
/*-- uc = MTF ( nextSym-1 ) --*/
|
||||
{
|
||||
Int32 ii, jj, kk, pp, lno, off;
|
||||
UInt32 nn;
|
||||
nn = (UInt32)(nextSym - 1);
|
||||
|
||||
if (nn < MTFL_SIZE) {
|
||||
/* avoid general-case expense */
|
||||
pp = s->mtfbase[0];
|
||||
uc = s->mtfa[pp+nn];
|
||||
while (nn > 3) {
|
||||
Int32 z = pp+nn;
|
||||
s->mtfa[(z) ] = s->mtfa[(z)-1];
|
||||
s->mtfa[(z)-1] = s->mtfa[(z)-2];
|
||||
s->mtfa[(z)-2] = s->mtfa[(z)-3];
|
||||
s->mtfa[(z)-3] = s->mtfa[(z)-4];
|
||||
nn -= 4;
|
||||
}
|
||||
while (nn > 0) {
|
||||
s->mtfa[(pp+nn)] = s->mtfa[(pp+nn)-1]; nn--;
|
||||
};
|
||||
s->mtfa[pp] = uc;
|
||||
} else {
|
||||
/* general case */
|
||||
lno = nn / MTFL_SIZE;
|
||||
off = nn % MTFL_SIZE;
|
||||
pp = s->mtfbase[lno] + off;
|
||||
uc = s->mtfa[pp];
|
||||
while (pp > s->mtfbase[lno]) {
|
||||
s->mtfa[pp] = s->mtfa[pp-1]; pp--;
|
||||
};
|
||||
s->mtfbase[lno]++;
|
||||
while (lno > 0) {
|
||||
s->mtfbase[lno]--;
|
||||
s->mtfa[s->mtfbase[lno]]
|
||||
= s->mtfa[s->mtfbase[lno-1] + MTFL_SIZE - 1];
|
||||
lno--;
|
||||
}
|
||||
s->mtfbase[0]--;
|
||||
s->mtfa[s->mtfbase[0]] = uc;
|
||||
if (s->mtfbase[0] == 0) {
|
||||
kk = MTFA_SIZE-1;
|
||||
for (ii = 256 / MTFL_SIZE-1; ii >= 0; ii--) {
|
||||
for (jj = MTFL_SIZE-1; jj >= 0; jj--) {
|
||||
s->mtfa[kk] = s->mtfa[s->mtfbase[ii] + jj];
|
||||
kk--;
|
||||
}
|
||||
s->mtfbase[ii] = kk + 1;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
/*-- end uc = MTF ( nextSym-1 ) --*/
|
||||
|
||||
s->unzftab[s->seqToUnseq[uc]]++;
|
||||
if (s->smallDecompress)
|
||||
s->ll16[nblock] = (UInt16)(s->seqToUnseq[uc]); else
|
||||
s->tt[nblock] = (UInt32)(s->seqToUnseq[uc]);
|
||||
nblock++;
|
||||
|
||||
GET_MTF_VAL(BZ_X_MTF_5, BZ_X_MTF_6, nextSym);
|
||||
continue;
|
||||
}
|
||||
}
|
||||
|
||||
/* Now we know what nblock is, we can do a better sanity
|
||||
check on s->origPtr.
|
||||
*/
|
||||
if (s->origPtr < 0 || s->origPtr >= nblock)
|
||||
RETURN(BZ_DATA_ERROR);
|
||||
|
||||
s->state_out_len = 0;
|
||||
s->state_out_ch = 0;
|
||||
BZ_INITIALISE_CRC ( s->calculatedBlockCRC );
|
||||
s->state = BZ_X_OUTPUT;
|
||||
if (s->verbosity >= 2) VPrintf0 ( "rt+rld" );
|
||||
|
||||
/*-- Set up cftab to facilitate generation of T^(-1) --*/
|
||||
s->cftab[0] = 0;
|
||||
for (i = 1; i <= 256; i++) s->cftab[i] = s->unzftab[i-1];
|
||||
for (i = 1; i <= 256; i++) s->cftab[i] += s->cftab[i-1];
|
||||
|
||||
if (s->smallDecompress) {
|
||||
|
||||
/*-- Make a copy of cftab, used in generation of T --*/
|
||||
for (i = 0; i <= 256; i++) s->cftabCopy[i] = s->cftab[i];
|
||||
|
||||
/*-- compute the T vector --*/
|
||||
for (i = 0; i < nblock; i++) {
|
||||
uc = (UChar)(s->ll16[i]);
|
||||
SET_LL(i, s->cftabCopy[uc]);
|
||||
s->cftabCopy[uc]++;
|
||||
}
|
||||
|
||||
/*-- Compute T^(-1) by pointer reversal on T --*/
|
||||
i = s->origPtr;
|
||||
j = GET_LL(i);
|
||||
do {
|
||||
Int32 tmp = GET_LL(j);
|
||||
SET_LL(j, i);
|
||||
i = j;
|
||||
j = tmp;
|
||||
}
|
||||
while (i != s->origPtr);
|
||||
|
||||
s->tPos = s->origPtr;
|
||||
s->nblock_used = 0;
|
||||
if (s->blockRandomised) {
|
||||
BZ_RAND_INIT_MASK;
|
||||
BZ_GET_SMALL(s->k0); s->nblock_used++;
|
||||
BZ_RAND_UPD_MASK; s->k0 ^= BZ_RAND_MASK;
|
||||
} else {
|
||||
BZ_GET_SMALL(s->k0); s->nblock_used++;
|
||||
}
|
||||
|
||||
} else {
|
||||
|
||||
/*-- compute the T^(-1) vector --*/
|
||||
for (i = 0; i < nblock; i++) {
|
||||
uc = (UChar)(s->tt[i] & 0xff);
|
||||
s->tt[s->cftab[uc]] |= (i << 8);
|
||||
s->cftab[uc]++;
|
||||
}
|
||||
|
||||
s->tPos = s->tt[s->origPtr] >> 8;
|
||||
s->nblock_used = 0;
|
||||
if (s->blockRandomised) {
|
||||
BZ_RAND_INIT_MASK;
|
||||
BZ_GET_FAST(s->k0); s->nblock_used++;
|
||||
BZ_RAND_UPD_MASK; s->k0 ^= BZ_RAND_MASK;
|
||||
} else {
|
||||
BZ_GET_FAST(s->k0); s->nblock_used++;
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
RETURN(BZ_OK);
|
||||
|
||||
|
||||
|
||||
endhdr_2:
|
||||
|
||||
GET_UCHAR(BZ_X_ENDHDR_2, uc);
|
||||
if (uc != 0x72) RETURN(BZ_DATA_ERROR);
|
||||
GET_UCHAR(BZ_X_ENDHDR_3, uc);
|
||||
if (uc != 0x45) RETURN(BZ_DATA_ERROR);
|
||||
GET_UCHAR(BZ_X_ENDHDR_4, uc);
|
||||
if (uc != 0x38) RETURN(BZ_DATA_ERROR);
|
||||
GET_UCHAR(BZ_X_ENDHDR_5, uc);
|
||||
if (uc != 0x50) RETURN(BZ_DATA_ERROR);
|
||||
GET_UCHAR(BZ_X_ENDHDR_6, uc);
|
||||
if (uc != 0x90) RETURN(BZ_DATA_ERROR);
|
||||
|
||||
s->storedCombinedCRC = 0;
|
||||
GET_UCHAR(BZ_X_CCRC_1, uc);
|
||||
s->storedCombinedCRC = (s->storedCombinedCRC << 8) | ((UInt32)uc);
|
||||
GET_UCHAR(BZ_X_CCRC_2, uc);
|
||||
s->storedCombinedCRC = (s->storedCombinedCRC << 8) | ((UInt32)uc);
|
||||
GET_UCHAR(BZ_X_CCRC_3, uc);
|
||||
s->storedCombinedCRC = (s->storedCombinedCRC << 8) | ((UInt32)uc);
|
||||
GET_UCHAR(BZ_X_CCRC_4, uc);
|
||||
s->storedCombinedCRC = (s->storedCombinedCRC << 8) | ((UInt32)uc);
|
||||
|
||||
s->state = BZ_X_IDLE;
|
||||
RETURN(BZ_STREAM_END);
|
||||
|
||||
default: AssertH ( False, 4001 );
|
||||
}
|
||||
|
||||
AssertH ( False, 4002 );
|
||||
|
||||
save_state_and_return:
|
||||
|
||||
s->save_i = i;
|
||||
s->save_j = j;
|
||||
s->save_t = t;
|
||||
s->save_alphaSize = alphaSize;
|
||||
s->save_nGroups = nGroups;
|
||||
s->save_nSelectors = nSelectors;
|
||||
s->save_EOB = EOB;
|
||||
s->save_groupNo = groupNo;
|
||||
s->save_groupPos = groupPos;
|
||||
s->save_nextSym = nextSym;
|
||||
s->save_nblockMAX = nblockMAX;
|
||||
s->save_nblock = nblock;
|
||||
s->save_es = es;
|
||||
s->save_N = N;
|
||||
s->save_curr = curr;
|
||||
s->save_zt = zt;
|
||||
s->save_zn = zn;
|
||||
s->save_zvec = zvec;
|
||||
s->save_zj = zj;
|
||||
s->save_gSel = gSel;
|
||||
s->save_gMinlen = gMinlen;
|
||||
s->save_gLimit = gLimit;
|
||||
s->save_gBase = gBase;
|
||||
s->save_gPerm = gPerm;
|
||||
|
||||
return retVal;
|
||||
}
|
||||
|
||||
|
||||
/*-------------------------------------------------------------*/
|
||||
/*--- end decompress.c ---*/
|
||||
/*-------------------------------------------------------------*/
|
||||
@@ -0,0 +1,228 @@
|
||||
|
||||
/*-------------------------------------------------------------*/
|
||||
/*--- Huffman coding low-level stuff ---*/
|
||||
/*--- huffman.c ---*/
|
||||
/*-------------------------------------------------------------*/
|
||||
|
||||
/*--
|
||||
This file is a part of bzip2 and/or libbzip2, a program and
|
||||
library for lossless, block-sorting data compression.
|
||||
|
||||
Copyright (C) 1996-2002 Julian R Seward. 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. 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@acm.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"
|
||||
|
||||
/*---------------------------------------------------*/
|
||||
#define WEIGHTOF(zz0) ((zz0) & 0xffffff00)
|
||||
#define DEPTHOF(zz1) ((zz1) & 0x000000ff)
|
||||
#define MYMAX(zz2,zz3) ((zz2) > (zz3) ? (zz2) : (zz3))
|
||||
|
||||
#define ADDWEIGHTS(zw1,zw2) \
|
||||
(WEIGHTOF(zw1)+WEIGHTOF(zw2)) | \
|
||||
(1 + MYMAX(DEPTHOF(zw1),DEPTHOF(zw2)))
|
||||
|
||||
#define UPHEAP(z) \
|
||||
{ \
|
||||
Int32 zz, tmp; \
|
||||
zz = z; tmp = heap[zz]; \
|
||||
while (weight[tmp] < weight[heap[zz >> 1]]) { \
|
||||
heap[zz] = heap[zz >> 1]; \
|
||||
zz >>= 1; \
|
||||
} \
|
||||
heap[zz] = tmp; \
|
||||
}
|
||||
|
||||
#define DOWNHEAP(z) \
|
||||
{ \
|
||||
Int32 zz, yy, tmp; \
|
||||
zz = z; tmp = heap[zz]; \
|
||||
while (True) { \
|
||||
yy = zz << 1; \
|
||||
if (yy > nHeap) break; \
|
||||
if (yy < nHeap && \
|
||||
weight[heap[yy+1]] < weight[heap[yy]]) \
|
||||
yy++; \
|
||||
if (weight[tmp] < weight[heap[yy]]) break; \
|
||||
heap[zz] = heap[yy]; \
|
||||
zz = yy; \
|
||||
} \
|
||||
heap[zz] = tmp; \
|
||||
}
|
||||
|
||||
|
||||
/*---------------------------------------------------*/
|
||||
void BZ2_hbMakeCodeLengths ( UChar *len,
|
||||
Int32 *freq,
|
||||
Int32 alphaSize,
|
||||
Int32 maxLen )
|
||||
{
|
||||
/*--
|
||||
Nodes and heap entries run from 1. Entry 0
|
||||
for both the heap and nodes is a sentinel.
|
||||
--*/
|
||||
Int32 nNodes, nHeap, n1, n2, i, j, k;
|
||||
Bool tooLong;
|
||||
|
||||
Int32 heap [ BZ_MAX_ALPHA_SIZE + 2 ];
|
||||
Int32 weight [ BZ_MAX_ALPHA_SIZE * 2 ];
|
||||
Int32 parent [ BZ_MAX_ALPHA_SIZE * 2 ];
|
||||
|
||||
for (i = 0; i < alphaSize; i++)
|
||||
weight[i+1] = (freq[i] == 0 ? 1 : freq[i]) << 8;
|
||||
|
||||
while (True) {
|
||||
|
||||
nNodes = alphaSize;
|
||||
nHeap = 0;
|
||||
|
||||
heap[0] = 0;
|
||||
weight[0] = 0;
|
||||
parent[0] = -2;
|
||||
|
||||
for (i = 1; i <= alphaSize; i++) {
|
||||
parent[i] = -1;
|
||||
nHeap++;
|
||||
heap[nHeap] = i;
|
||||
UPHEAP(nHeap);
|
||||
}
|
||||
|
||||
AssertH( nHeap < (BZ_MAX_ALPHA_SIZE+2), 2001 );
|
||||
|
||||
while (nHeap > 1) {
|
||||
n1 = heap[1]; heap[1] = heap[nHeap]; nHeap--; DOWNHEAP(1);
|
||||
n2 = heap[1]; heap[1] = heap[nHeap]; nHeap--; DOWNHEAP(1);
|
||||
nNodes++;
|
||||
parent[n1] = parent[n2] = nNodes;
|
||||
weight[nNodes] = ADDWEIGHTS(weight[n1], weight[n2]);
|
||||
parent[nNodes] = -1;
|
||||
nHeap++;
|
||||
heap[nHeap] = nNodes;
|
||||
UPHEAP(nHeap);
|
||||
}
|
||||
|
||||
AssertH( nNodes < (BZ_MAX_ALPHA_SIZE * 2), 2002 );
|
||||
|
||||
tooLong = False;
|
||||
for (i = 1; i <= alphaSize; i++) {
|
||||
j = 0;
|
||||
k = i;
|
||||
while (parent[k] >= 0) { k = parent[k]; j++; }
|
||||
len[i-1] = j;
|
||||
if (j > maxLen) tooLong = True;
|
||||
}
|
||||
|
||||
if (! tooLong) break;
|
||||
|
||||
for (i = 1; i < alphaSize; i++) {
|
||||
j = weight[i] >> 8;
|
||||
j = 1 + (j / 2);
|
||||
weight[i] = j << 8;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/*---------------------------------------------------*/
|
||||
void BZ2_hbAssignCodes ( Int32 *code,
|
||||
UChar *length,
|
||||
Int32 minLen,
|
||||
Int32 maxLen,
|
||||
Int32 alphaSize )
|
||||
{
|
||||
Int32 n, vec, i;
|
||||
|
||||
vec = 0;
|
||||
for (n = minLen; n <= maxLen; n++) {
|
||||
for (i = 0; i < alphaSize; i++)
|
||||
if (length[i] == n) { code[i] = vec; vec++; };
|
||||
vec <<= 1;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/*---------------------------------------------------*/
|
||||
void BZ2_hbCreateDecodeTables ( Int32 *limit,
|
||||
Int32 *base,
|
||||
Int32 *perm,
|
||||
UChar *length,
|
||||
Int32 minLen,
|
||||
Int32 maxLen,
|
||||
Int32 alphaSize )
|
||||
{
|
||||
Int32 pp, i, j, vec;
|
||||
|
||||
pp = 0;
|
||||
for (i = minLen; i <= maxLen; i++)
|
||||
for (j = 0; j < alphaSize; j++)
|
||||
if (length[j] == i) { perm[pp] = j; pp++; };
|
||||
|
||||
for (i = 0; i < BZ_MAX_CODE_LEN; i++) base[i] = 0;
|
||||
for (i = 0; i < alphaSize; i++) base[length[i]+1]++;
|
||||
|
||||
for (i = 1; i < BZ_MAX_CODE_LEN; i++) base[i] += base[i-1];
|
||||
|
||||
for (i = 0; i < BZ_MAX_CODE_LEN; i++) limit[i] = 0;
|
||||
vec = 0;
|
||||
|
||||
for (i = minLen; i <= maxLen; i++) {
|
||||
vec += (base[i+1] - base[i]);
|
||||
limit[i] = vec-1;
|
||||
vec <<= 1;
|
||||
}
|
||||
for (i = minLen + 1; i <= maxLen; i++)
|
||||
base[i] = ((limit[i-1] + 1) << 1) - base[i];
|
||||
}
|
||||
|
||||
|
||||
/*-------------------------------------------------------------*/
|
||||
/*--- end huffman.c ---*/
|
||||
/*-------------------------------------------------------------*/
|
||||
@@ -0,0 +1,124 @@
|
||||
|
||||
/*-------------------------------------------------------------*/
|
||||
/*--- Table for randomising repetitive blocks ---*/
|
||||
/*--- randtable.c ---*/
|
||||
/*-------------------------------------------------------------*/
|
||||
|
||||
/*--
|
||||
This file is a part of bzip2 and/or libbzip2, a program and
|
||||
library for lossless, block-sorting data compression.
|
||||
|
||||
Copyright (C) 1996-2002 Julian R Seward. 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. 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@acm.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"
|
||||
|
||||
|
||||
/*---------------------------------------------*/
|
||||
Int32 BZ2_rNums[512] = {
|
||||
619, 720, 127, 481, 931, 816, 813, 233, 566, 247,
|
||||
985, 724, 205, 454, 863, 491, 741, 242, 949, 214,
|
||||
733, 859, 335, 708, 621, 574, 73, 654, 730, 472,
|
||||
419, 436, 278, 496, 867, 210, 399, 680, 480, 51,
|
||||
878, 465, 811, 169, 869, 675, 611, 697, 867, 561,
|
||||
862, 687, 507, 283, 482, 129, 807, 591, 733, 623,
|
||||
150, 238, 59, 379, 684, 877, 625, 169, 643, 105,
|
||||
170, 607, 520, 932, 727, 476, 693, 425, 174, 647,
|
||||
73, 122, 335, 530, 442, 853, 695, 249, 445, 515,
|
||||
909, 545, 703, 919, 874, 474, 882, 500, 594, 612,
|
||||
641, 801, 220, 162, 819, 984, 589, 513, 495, 799,
|
||||
161, 604, 958, 533, 221, 400, 386, 867, 600, 782,
|
||||
382, 596, 414, 171, 516, 375, 682, 485, 911, 276,
|
||||
98, 553, 163, 354, 666, 933, 424, 341, 533, 870,
|
||||
227, 730, 475, 186, 263, 647, 537, 686, 600, 224,
|
||||
469, 68, 770, 919, 190, 373, 294, 822, 808, 206,
|
||||
184, 943, 795, 384, 383, 461, 404, 758, 839, 887,
|
||||
715, 67, 618, 276, 204, 918, 873, 777, 604, 560,
|
||||
951, 160, 578, 722, 79, 804, 96, 409, 713, 940,
|
||||
652, 934, 970, 447, 318, 353, 859, 672, 112, 785,
|
||||
645, 863, 803, 350, 139, 93, 354, 99, 820, 908,
|
||||
609, 772, 154, 274, 580, 184, 79, 626, 630, 742,
|
||||
653, 282, 762, 623, 680, 81, 927, 626, 789, 125,
|
||||
411, 521, 938, 300, 821, 78, 343, 175, 128, 250,
|
||||
170, 774, 972, 275, 999, 639, 495, 78, 352, 126,
|
||||
857, 956, 358, 619, 580, 124, 737, 594, 701, 612,
|
||||
669, 112, 134, 694, 363, 992, 809, 743, 168, 974,
|
||||
944, 375, 748, 52, 600, 747, 642, 182, 862, 81,
|
||||
344, 805, 988, 739, 511, 655, 814, 334, 249, 515,
|
||||
897, 955, 664, 981, 649, 113, 974, 459, 893, 228,
|
||||
433, 837, 553, 268, 926, 240, 102, 654, 459, 51,
|
||||
686, 754, 806, 760, 493, 403, 415, 394, 687, 700,
|
||||
946, 670, 656, 610, 738, 392, 760, 799, 887, 653,
|
||||
978, 321, 576, 617, 626, 502, 894, 679, 243, 440,
|
||||
680, 879, 194, 572, 640, 724, 926, 56, 204, 700,
|
||||
707, 151, 457, 449, 797, 195, 791, 558, 945, 679,
|
||||
297, 59, 87, 824, 713, 663, 412, 693, 342, 606,
|
||||
134, 108, 571, 364, 631, 212, 174, 643, 304, 329,
|
||||
343, 97, 430, 751, 497, 314, 983, 374, 822, 928,
|
||||
140, 206, 73, 263, 980, 736, 876, 478, 430, 305,
|
||||
170, 514, 364, 692, 829, 82, 855, 953, 676, 246,
|
||||
369, 970, 294, 750, 807, 827, 150, 790, 288, 923,
|
||||
804, 378, 215, 828, 592, 281, 565, 555, 710, 82,
|
||||
896, 831, 547, 261, 524, 462, 293, 465, 502, 56,
|
||||
661, 821, 976, 991, 658, 869, 905, 758, 745, 193,
|
||||
768, 550, 608, 933, 378, 286, 215, 979, 792, 961,
|
||||
61, 688, 793, 644, 986, 403, 106, 366, 905, 644,
|
||||
372, 567, 466, 434, 645, 210, 389, 550, 919, 135,
|
||||
780, 773, 635, 389, 707, 100, 626, 958, 165, 504,
|
||||
920, 176, 193, 713, 857, 265, 203, 50, 668, 108,
|
||||
645, 990, 626, 197, 510, 357, 358, 850, 858, 364,
|
||||
936, 638
|
||||
};
|
||||
|
||||
|
||||
/*-------------------------------------------------------------*/
|
||||
/*--- end randtable.c ---*/
|
||||
/*-------------------------------------------------------------*/
|
||||
@@ -245,6 +245,42 @@ resource(4, "BEOS:L:application/x-gunzip") #'ICON' array
|
||||
$"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"
|
||||
};
|
||||
|
||||
resource(5, "BEOS:L:application/x-bzip2") #'ICON' array
|
||||
{
|
||||
$"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"
|
||||
$"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFF00000000FFFFFFFFFF00000000000000FF"
|
||||
$"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFF00ACACAC0000000000ACACACACACAC00FF"
|
||||
$"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFF00ACACACACACACACACACACACACACAC00FF"
|
||||
$"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFF00AC000000AC000000ACAC0000ACAC00FF"
|
||||
$"FFFFFFFFFFFFFFFFFFFFFFFF00000000AC00AC00ACACAC00AC00AC00ACAC00FF"
|
||||
$"FFFFFFFFFFFFFFFFFFFF00003FD93F00AC000000ACAC00ACACAC00ACACAC00FF"
|
||||
$"FFFFFFFFFFFFFFFFFF00D93FD93FD900AC000000AC000000AC000000ACAC00FF"
|
||||
$"FFFFFFFFFFFFFFFF00D93FD93FD93F00ACACACACACACACACACACACACACAC00FF"
|
||||
$"FFFFFFFFFFFFFF00D93FD93FD93FD9000000ACACACACACAC00000000000000FF"
|
||||
$"FFFFFFFFFFFF00D93FD93FD93FD93F003FD90000000000000000FFFFFFFFFFFF"
|
||||
$"FFFFFFFFFF000000D93FD93FD93FD900D93F003FD93FD93FD93F0000FFFFFFFF"
|
||||
$"FFFFFFFF00D93FD900000000000000003F003FD93FD93FD93FD93FD900FFFFFF"
|
||||
$"FFFFFF00D93FD93FD9000000D93F0000003FD93FD93FD93FD93FD93FD900FFFF"
|
||||
$"FFFF00D93FD93FD93F003FD900003F000000000000003FD93FD93FD93FD900FF"
|
||||
$"FF00D93FD93FD93FD93F0000003F0000003FD93FD93F003FD93FD93FD98300FF"
|
||||
$"FF003FD93FD93FD93FD93FD93F003FD900003FD900003FD93FD93FD9838300FF"
|
||||
$"00D9D93FD93FD93FD93FD93F003FD900D9000000003FD93FD93FD983838300FF"
|
||||
$"00D9D9D93FD93FD93FD93F003FD93F003FD93FD93F0000D93FD98383838300FF"
|
||||
$"00D9D9D9D9D9D93FD93F003FD93FD900D93FD93FD93FD900008383838300FFFF"
|
||||
$"FF00D9D9D9D9D9D93F003FD93FD93FD93FD93FD93FD93FD90083838300FFFFFF"
|
||||
$"FFFF0000D9D9D9D9D901D93FD93FD93FD93FD93FD93FD98300838300FFFFFFFF"
|
||||
$"FFFFFFFF0000D9D9D901D9D93FD93FD93FD93FD93FD98383008300FFFFFFFFFF"
|
||||
$"FFFFFFFFFFFF0000D900D9D9D9D9D93FD93FD93FD98383830000FFFFFFFFFFFF"
|
||||
$"FFFFFFFFFFFFFFFF0000D9D9D9D9D9D93FD93FD98383838300FFFFFFFFFFFFFF"
|
||||
$"FFFFFFFFFFFFFFFFFFFF0000D9D9D9D9D9D9D98383838301FFFFFFFFFFFFFFFF"
|
||||
$"FFFFFFFFFFFFFFFFFFFFFFFF0000D9D9D9D98383838301FFFFFFFFFFFFFFFFFF"
|
||||
$"FFFFFFFFFFFFFFFFFFFFFFFFFFFF0000D9D983830100FFFFFFFFFFFFFFFFFFFF"
|
||||
$"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF00000000FFFFFFFFFFFFFFFFFFFFFFFF"
|
||||
$"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"
|
||||
$"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"
|
||||
$"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"
|
||||
};
|
||||
|
||||
resource(0, "BEOS:M:application/x-gzip") #'MICN' array
|
||||
{
|
||||
$"FFFFFFFFFFFFFF3D033D03023D0302FF"
|
||||
@@ -345,11 +381,32 @@ resource(4, "BEOS:M:application/x-gunzip") #'MICN' array
|
||||
$"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"
|
||||
};
|
||||
|
||||
resource(5, "BEOS:M:application/x-bzip2") #'MICN' array
|
||||
{
|
||||
$"FFFFFFFFFFFFFF3D033D03023D0302FF"
|
||||
$"FFFFFFFFFFFFFF3DACACACACACAC03FF"
|
||||
$"FFFFFFFFFF00003DACACACACACAC03FF"
|
||||
$"FFFFFFFF00D9D93DACACACACACAC03FF"
|
||||
$"FFFFFF00D9D9D9023D033D033D0303FF"
|
||||
$"FFFF000000000000D900D9D9D90000FF"
|
||||
$"FF00D9D900D9D900000000D9D9D98300"
|
||||
$"00D9D9D9D9010000D9D9D900D93F8300"
|
||||
$"003F3FD9D9D90000000000D93F838300"
|
||||
$"00D9D93F3F00D900D9D9D900008300FF"
|
||||
$"0000D9D9003F3F00D9D93F830000FFFF"
|
||||
$"FFFF000000D9D93F3F3F838300FFFFFF"
|
||||
$"FFFFFFFF0000D9D9D9838301FFFFFFFF"
|
||||
$"FFFFFFFFFFFF0000D98301FFFFFFFFFF"
|
||||
$"FFFFFFFFFFFFFFFF0000FFFFFFFFFFFF"
|
||||
$"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"
|
||||
};
|
||||
|
||||
resource(1, "BEOS:FILE_TYPES") message
|
||||
{
|
||||
"types" = "application/x-gzip",
|
||||
"types" = "application/x-tar",
|
||||
"types" = "application/x-zip-compressed",
|
||||
"types" = "application/zip",
|
||||
"types" = "application/x-gunzip"
|
||||
"types" = "application/x-gunzip",
|
||||
"types" = "application/x-bzip2"
|
||||
};
|
||||
|
||||
@@ -59,10 +59,12 @@ ExpanderRule::ExpanderRule(const char* mimetype, const char* filenameExtension
|
||||
ExpanderRules::ExpanderRules()
|
||||
{
|
||||
fList.AddItem(new ExpanderRule("", ".tar.gz", "zcat %s | tar -tvf -", "zcat %s | tar -xvf -"));
|
||||
fList.AddItem(new ExpanderRule("", ".tar.bz2", "bzcat %s | tar -tvf -", "bzcat %s | tar -xvf -"));
|
||||
fList.AddItem(new ExpanderRule("", ".tar.Z", "zcat %s | tar -tvf -", "zcat %s | tar -xvf -"));
|
||||
fList.AddItem(new ExpanderRule("", ".tgz", "zcat %s | tar -tvf -", "zcat %s | tar -xvf -"));
|
||||
fList.AddItem(new ExpanderRule("application/x-tar", ".tar", "tar -tvf %s", "tar -xf %s"));
|
||||
fList.AddItem(new ExpanderRule("application/x-gzip", ".gz", "echo %s | sed 's/.gz$//g'", "gunzip %s"));
|
||||
fList.AddItem(new ExpanderRule("application/x-bzip2", ".bz2", "echo %s | sed 's/.bz2$//g'", "bunzip2 %s"));
|
||||
fList.AddItem(new ExpanderRule("application/zip", ".zip", "unzip -l %s", "unzip -o %s"));
|
||||
fList.AddItem(new ExpanderRule("application/x-zip-compressed", ".zip", "unzip -l %s", "unzip -o %s"));
|
||||
|
||||
|
||||
Reference in New Issue
Block a user