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2023-06-14 Antonio Diaz Diaz <antonio@gnu.org>
* Version 1.24-pre1 released.
* New options '--empty-error', '--marking-error', '--clear-marking'.
* dump_remove.cc, main.cc: Accept 'empty' in --dump, --remove, --strip.
* main.cc: Rename '--repair' to '--byte-repair'.
Rename '--debug-repair' to '--debug-byte-repair'.
(show_option_error): New function showing argument and option name.
* lzip.h: Rename verify_* to check_*.
* unzcrash.cc: Rename '--no-verify' to '--no-check'.
* repair.cc: Rename to byte_repair.cc.
* testsuite: New test files test_3m.txt.lz.md5, fox6_mark.lz.
2022-01-21 Antonio Diaz Diaz <antonio@gnu.org>
* Version 1.23 released.
* Decompression time has been reduced by 5-12% depending on the file.
* main_common.cc (getnum): Show option name and valid range if error.
* dump_remove.cc (dump_members): Check tty except for --dump=tdata.
* Option '-U, --unzcrash' now takes an argument ('1' or 'B<size>').
* mtester.cc (duplicate_buffer): Use an external buffer.
* repair.cc (debug_decompress): Continue decoding on CRC mismatch.
* unzcrash.cc: Make zcmp_command a string of unlimited size.
Use execvp instead of popen to avoid invoking /bin/sh.
Print byte or block position in messages.
* New file common.h.
* Improve several descriptions in manual, '--help', and man page.
* lziprecover.texi: Change GNU Texinfo category to 'Compression'.
(Reported by Alfred M. Szmidt).
2021-01-02 Antonio Diaz Diaz <antonio@gnu.org>
* Version 1.22 released.
* New options '-e, --reproduce', '--lzip-level', '--lzip-name',
'--reference-file', and '-E, --debug-reproduce'.
* Remove '--dump-tdata', '--remove-tdata', and '--strip-tdata'.
* main.cc (main): Report an error if a file name is empty.
Make '-o' behave like '-c', but writing to file.
Make '-c' and '-o' check whether the output is a terminal only once.
Do not open output if input is a terminal.
* main.cc (decompress): With '-i', ignore data errors, keep files.
* range_dec.cc: '-i -D' now decompresses a truncated last member.
* '-i -D' now returns 0 if only ignored errors are found.
* '-i' now considers any block > 36 with header a member, not a gap.
* Replace 'decompressed', 'compressed' with 'out', 'in' in output.
* Fix several compiler warnings. (Reported by Nissanka Gooneratne).
* lzip_index.cc: Improve messages for corruption in last header.
* New debug options '-M, --md5sum' and '-U, --unzcrash'.
* main.cc: Set a valid invocation_name even if argc == 0.
* Document extraction from tar.lz in manual, '--help', and man page.
* New files lunzcrash.cc, md5.h, md5.cc, nrep_stats.cc, reproduce.cc.
* lziprecover.texi: New chapter 'Reproducing one sector'.
New sections 'Merging with a backup' and 'Reproducing a mailbox'.
Document the debug options for experts.
* check.sh: Lzip 1.16 or newer is required to run the tests.
* testsuite: Add 9 new test files.
2019-01-04 Antonio Diaz Diaz <antonio@gnu.org>
* Version 1.21 released.
* Rename File_* to Lzip_*.
* New options '--dump', '--remove', and '--strip'. They
replace '--dump-tdata', '--remove-tdata', and '--strip-tdata',
which are now aliases and will be removed in version 1.22.
* lzip.h (Lzip_trailer): New function 'verify_consistency'.
* lzip_index.cc: Lzip_index now detects gaps between members,
some kinds of corrupt trailers and
some fake trailers embedded in trailing data.
* split.cc: Use Lzip_index to split members, gaps and trailing data.
* split.cc: Check last member before writing anything.
* list.cc (list_files): With '-i', ignore format errors, show gaps.
* range_dec.cc: With '-i', ignore a truncated last member.
* main.cc (main): Check return value of close( infd ).
* Improve and add new diagnostic messages.
* Print '\n' instead of '\r' if !isatty( 1 ) in merge, repair.
* main.cc: Compile on DOS with DJGPP.
* lziprecover.texi: New chapter 'Tarlz'.
* configure: Accept appending to CXXFLAGS; 'CXXFLAGS+=OPTIONS'.
* INSTALL: Document use of CXXFLAGS+='-D __USE_MINGW_ANSI_STDIO'.
* testsuite: New test files fox.lz, fox6_sc[1-6].lz.
2018-02-12 Antonio Diaz Diaz <antonio@gnu.org>
* Version 1.20 released.
* split.cc: Fix splitting of files > 64 KiB broken since 1.16.
* New options '--dump-tdata', '--remove-tdata', '--strip-tdata', and
'--loose-trailing'.
* Improve corrupt header detection to HD=3.
* main.cc: Show corrupt or truncated header in multimember file.
* Replace 'bits/byte' with inverse compression ratio in output.
* Show progress of decompression at verbosity level 2 (-vv).
* Show progress of decompression only if stderr is a terminal.
* main.cc: Show final diagnostic when testing multiple files.
* decoder.cc (verify_trailer): Show stored sizes also in hex.
Show dictionary size at verbosity level 4 (-vvvv).
2017-04-10 Antonio Diaz Diaz <antonio@gnu.org>
* Version 1.19 released.
* merge.cc: Fix members with thousands of scattered errors.
* Option '-a' now works with '-l' and '-D'.
* The output of option '-l, --list' has been simplified.
* main.cc: Continue testing if any input file is a terminal.
* main.cc: Show trailing data in both hexadecimal and ASCII.
* lzip_index.cc: Improve detection of bad dict and trailing data.
* lzip_index.cc: Skip trailing data more efficiently.
* lzip.h: Unify messages for bad magic, trailing data, etc.
* New struct Bad_byte allows delta and flip modes for bad_value.
* unzcrash.cc: New option '-e, --set-byte'.
2016-05-12 Antonio Diaz Diaz <antonio@gnu.org>
* Version 1.18 released.
* New option '-a, --trailing-error'.
* merge.cc (open_input_files): Use CRC to test identical files.
* repair.cc (repair_file): Detect gross damage before repairing.
* repair.cc: Repair a damaged dictionary size in the header.
* repair.cc: Try bytes at offsets 7 to 11 first.
* Decompression time has been reduced by 2%.
* main.cc (decompress): Print up to 6 bytes of trailing data
when '-tvvvv' is specified.
* decoder.cc (verify_trailer): Remove test of final code.
* main.cc (main): Delete '--output' file if infd is a terminal.
* main.cc (main): Don't use stdin more than once.
* Use 'close_and_set_permissions' and 'set_signals' in all modes.
* range_dec.cc (list_file): Show dictionary size and size of
trailing data (if any) with '-lv'.
* New options '-A, --alone-to-lz', '-W, --debug-decompress', and
'-X, --show-packets'.
* Change short name of option '--debug-delay' to '-Y'.
* Change short name of option '--debug-repair' to '-Z'.
* unzcrash.cc: New options '-B, --block', '-d, --delta',
'-t, --truncate', and '-z, --zcmp'.
* unzcrash.cc: Read files as large as RAM allows.
* unzcrash.cc: Compare output using zcmp if decompressor returns 0.
* unzcrash.cc: Accept negative position and size.
* lziprecover.texi: New chapter 'Trailing data'.
* configure: Avoid warning on some shells when testing for g++.
* Makefile.in: Detect the existence of install-info.
* check.sh: Don't check error messages.
* check.sh: A POSIX shell is required to run the tests.
2015-05-28 Antonio Diaz Diaz <antonio@gnu.org>
* Version 1.17 released.
* New block selection algorithm makes merge up to 100 times faster.
* repair.cc: Repair time has been reduced by 15%.
* New options '-y, --debug-delay' and '-z, --debug-repair'.
* Makefile.in: New targets 'install*-compress'.
* testsuite/unzcrash.cc: Move to top directory.
* lziprecover.texi: New chapter 'File names'.
2014-08-29 Antonio Diaz Diaz <antonio@gnu.org>
* Version 1.16 released.
* New class LZ_mtester makes repair up to 10 times faster.
* main.cc (close_and_set_permissions): Behave like 'cp -p'.
* lziprecover.texinfo: Rename to lziprecover.texi.
* Change license to GPL version 2 or later.
2013-09-14 Antonio Diaz Diaz <antonio@gnu.org>
* Version 1.15 released.
* repair.cc: Repair multimember files with up to one byte error
per member.
* merge.cc: Merge multimember files.
* main.cc (show_header): Don't show header version.
* lziprecover.texinfo: New chapters 'Repairing files',
'Merging files', and 'Unzcrash'.
2013-05-31 Antonio Diaz Diaz <antonio@gnu.org>
* Version 1.14 released.
* New option '-i, --ignore-errors'.
* Option '-l, --list' now accepts more than one file.
* Decompression time has been reduced by 12%.
* split.cc: Use as few digits as possible in file names.
* split.cc: In verbose mode show names of files being created.
* main.cc (show_header): Show header version if verbosity >= 4.
* configure: Options now accept a separate argument.
* Makefile.in: New targets 'install-as-lzip' and 'install-bin'.
* main.cc: Use 'setmode' instead of '_setmode' on Windows and OS/2.
2012-02-24 Antonio Diaz Diaz <ant_diaz@teleline.es>
* Version 1.13 released.
* Lziprecover is now distributed in its own package. Until
version 1.12 it was included in the lzip package. Previous
entries in this file are taken from there.
* lziprecover.cc: Rename to main.cc.
* New files merge.cc, repair.cc, split.cc, and range_dec.cc.
* main.cc: Add decompressor options (-c, -d, -k, -t) so that
an external decompressor is not needed for recovery nor for
"make check".
* New option '-D, --range-decompress', which extracts a range of
bytes decompressing only the members containing the desired data.
* New option '-l, --list', which prints correct total file sizes
even for multimember files.
* merge.cc, repair.cc: Remove output file if recovery fails.
* Change quote characters in messages as advised by GNU Standards.
* split.cc: Use Boyer-Moore algorithm to search for headers.
* configure: Rename 'datadir' to 'datarootdir'.
2011-04-30 Antonio Diaz Diaz <ant_diaz@teleline.es>
* Version 1.12 released.
* lziprecover.cc: If '-v' is not specified show errors only.
* unzcrash.cc: Use Arg_parser.
* unzcrash.cc: New options '-b, --bits', '-p, --position', and
'-s, --size'.
2010-09-16 Antonio Diaz Diaz <ant_diaz@teleline.es>
* Version 1.11 released.
* lziprecover.cc: New option '-m, --merge', which tries to produce a
correct file by merging the good parts of two or more damaged copies.
* lziprecover.cc: New option '-R, --repair' for repairing a
1-byte error in single-member files.
* decoder.cc (decode_member): Detect file errors earlier to improve
efficiency of lziprecover's new repair capability.
This change also prevents (harmless) access to uninitialized
memory when decompressing a corrupt file.
* lziprecover.cc: New options '-f, --force' and '-o, --output'.
* lziprecover.cc: New option '-s, --split' to select the until
now only operation of splitting multimember files.
* lziprecover.cc: If no operation is specified, warn the user and do
nothing.
2009-06-22 Antonio Diaz Diaz <ant_diaz@teleline.es>
* Version 1.6 released.
* lziprecover.1: New man page.
* check.sh: Test lziprecover.
2009-01-24 Antonio Diaz Diaz <ant_diaz@teleline.es>
* Version 1.4 released.
* Add 'lziprecover', a member recoverer program.
* unzcrash.cc: Test all 1-byte errors.
Copyright (C) 2009-2023 Antonio Diaz Diaz.
This file is a collection of facts, and thus it is not copyrightable,
but just in case, you have unlimited permission to copy, distribute, and
modify it.
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