lzip/lziprecover
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Adding upstream version 1.18.

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Signed-off-by: Daniel Baumann <daniel@debian.org>
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Daniel Baumann 2025-02-21 11:26:09 +01:00
parent ed1b0d872f
commit f46d8ce0c8
Signed by: daniel
GPG key ID: FBB4F0E80A80222F
45 changed files with 1576 additions and 774 deletions
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15
README
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@ -6,6 +6,9 @@ files, produce a correct file by merging the good parts of two or more
damaged copies, extract data from damaged files, decompress files and
test integrity of files.
Lziprecover is not a replacement for regular backups, but a last line of
defense for the case where the backups are also damaged.
The lzip file format is designed for data sharing and long-term
archiving, taking into account both data integrity and decoder
availability:
@ -43,12 +46,11 @@ If a file is too damaged for lziprecover to repair it, all the
recoverable data in all members of the file can be extracted in one step
with the '-D' option.
Lziprecover is able to efficiently extract a range of bytes from a
multi-member file, because it only decompresses the members containing
the desired data.
Lziprecover provides random access to the data in multimember files; it
only decompresses the members containing the desired data.
Lziprecover can print correct total file sizes and ratios even for
multi-member files.
multimember files.
When recovering data, lziprecover takes as arguments the names of the
damaged files and writes zero or more recovered files depending on the
@ -66,16 +68,13 @@ few MB) with small errors (one sector damaged per copy), the probability
approaches 100 percent even with only two copies. (Supposing that the
errors are randomly located inside each copy).
Lziprecover is not a replacement for regular backups, but a last line of
defense for the case where the backups are also damaged.
The lziprecover package also includes unzcrash, a program written to
test robustness to decompression of corrupted data, inspired by
unzcrash.c from Julian Seward's bzip2. Type 'make unzcrash' in the
lziprecover source directory to build it. Then try 'unzcrash --help'.
Copyright (C) 2009-2015 Antonio Diaz Diaz.
Copyright (C) 2009-2016 Antonio Diaz Diaz.
This file is free documentation: you have unlimited permission to copy,
distribute and modify it.