NAME

       xlunzip - test tool for the lzip_decompress linux module

SYNOPSIS

       xlunzip [options] [files]

DESCRIPTION

       Xlunzip  is a test tool for the lzip decompression code of my lzip patch for linux. Xlunzip is similar to
       lunzip, but it uses the lzip_decompress linux module as a backend. Xlunzip tests the module  for  stream,
       buffer-to-buffer,  and mixed decompression modes, including in-place decompression (using the same buffer
       for input and output). You can use xlunzip to  check  that  the  module  produces  correct  results  when
       decompressing  single  member  files,  multimember  files, or the concatenation of two or more compressed
       files.  Xlunzip can be used with unzcrash to test the robustness of the module to  the  decompression  of
       corrupted data.

       The  distributed  index  feature  of  the  lzip format allows xlunzip to decompress concatenated files in
       place. This can't be guaranteed to work with formats like gzip or bzip2 because they can't detect whether
       a high compression ratio in the first  members  of  the  multimember  data  is  being  masked  by  a  low
       compression ratio in the last members.

OPTIONS

       -h, --help
              display this help and exit

       -V, --version
              output version information and exit

       -c, --stdout
              write to standard output, keep input files

       -d, --decompress
              decompress (this is the default)

       -f, --force
              overwrite existing output files

       -I, --in-place
              decompress or test using only one buffer

       -k, --keep
              keep (don't delete) input files

       -o, --output=<file>
              write to <file>, keep input files

       -q, --quiet
              suppress all messages

       -t, --test
              test compressed file integrity

       -v, --verbose
              be verbose (a 2nd -v gives more)

   These options are ignored when --in-place is in effect:
       --insize[=<size>]
              pre-allocate and fill inbuf [default 16 KiB]

       --outsize[=<size>]
              pre-allocate outbuf [default 512 MiB]

       --nofill
              do not pass a fill function; requires --insize

       --noflush
              do not pass a flush function; requires --outsize

       If  no  file  names  are given, or if a file is '-', xlunzip decompresses from standard input to standard
       output.  Numbers may be followed by a multiplier: k = kB = 10^3 = 1000, Ki = KiB = 2^10 = 1024, M = 10^6,
       Mi = 2^20, G = 10^9, Gi = 2^30, etc...

       To extract all the files from archive 'foo.tar.lz', use the commands 'tar -xf foo.tar.lz' or 'xlunzip -cd
       foo.tar.lz | tar -xf -'.

       Exit status: 0 for a normal exit, 1 for environmental problems  (file  not  found,  invalid  command-line
       options,  I/O  errors, etc), 2 to indicate a corrupt or invalid input file, 3 for an internal consistency
       error (e.g., bug) which caused xlunzip to panic.

REPORTING BUGS

       Report bugs to lzip-bug@nongnu.org
       Xlunzip home page: http://www.nongnu.org/lzip/xlunzip.html

COPYRIGHT

       Copyright   ©   2024   Antonio   Diaz   Diaz.    License   GPLv2+:   GNU   GPL   version   2   or   later
       <http://gnu.org/licenses/gpl.html>
       This  is  free software: you are free to change and redistribute it.  There is NO WARRANTY, to the extent
       permitted by law.

xlunzip 0.8                                       January 2024                                        XLUNZIP(1)