Merging upstream version 1.22.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 90 insertions, 77 deletions

diff --git a/ChangeLog b/ChangeLog
index 8635cc7..b9cdf07 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,31 +1,48 @@
+2021-01-04  Antonio Diaz Diaz  <antonio@gnu.org>
+
+	* Version 1.22 released.
+	* main.cc (main): Report an error if a file name is empty.
+	  Make '-o' behave like '-c', but writing to file instead of stdout.
+	  Make '-c' and '-o' check whether the output is a terminal only once.
+	  Do not open output if input is a terminal.
+	* configure: Build, check, and install without 'make'.
+	* Replace 'decompressed', 'compressed' with 'out', 'in' in output.
+	* lzip_index.cc: Improve messages for corruption in last header.
+	* main.cc: Set a valid invocation_name even if argc == 0.
+	* Document extraction from tar.lz in manual, '--help', and man page.
+	* lzip.texi (Introduction): Mention plzip and tarlz as alternatives.
+	* lzip.texi: Several fixes and improvements.
+	* testsuite: Add 9 new test files.
+
 2019-01-03  Antonio Diaz Diaz  <antonio@gnu.org>
 
 	* Version 1.21 released.
-	* File_* renamed to Lzip_*.
+	* Rename File_* to Lzip_*.
 	* lzip.h (Lzip_trailer): New function 'verify_consistency'.
 	* lzip_index.cc: Detect some kinds of corrupt trailers.
 	* main.cc (main): Check return value of close( infd ).
 	* main.cc: Compile on DOS with DJGPP.
-	* lzip.texi: Improved description of '-0..-9', '-m' and '-s'.
+	* Fix a GCC warning about catching std::bad_alloc by value.
+	* lzip.texi: Improve description of '-0..-9', '-m', and '-s'.
 	* configure: Accept appending to CXXFLAGS, 'CXXFLAGS+=OPTIONS'.
 	* INSTALL: Document use of CXXFLAGS+='-D __USE_MINGW_ANSI_STDIO'.
 
 2018-02-11  Antonio Diaz Diaz  <antonio@gnu.org>
 
 	* Version 1.20 released.
-	* Added new option '--loose-trailing'.
-	* Improved corrupt header detection to HD=3.
+	* New option '--loose-trailing'.
+	* Improve corrupt header detection to HD=3.
 	* main.cc: Show corrupt or truncated header in multimember file.
 	* main.cc (main): Option '-S, --volume-size' now keeps input files.
 	* encoder_base.*: Adjust dictionary size for each member.
-	* Replaced 'bits/byte' with inverse compression ratio in output.
+	* Replace 'bits/byte' with inverse compression ratio in output.
 	* Show progress of decompression at verbosity level 2 (-vv).
 	* Show progress of (de)compression only if stderr is a terminal.
 	* main.cc: Show final diagnostic when testing multiple files.
-	* main.cc: Do not add a second .lz extension to the arg of -o.
+	* main.cc: Do not add a second extension '.lz' to the arg of '-o'.
 	* decoder.cc (verify_trailer): Show stored sizes also in hex.
 	  Show dictionary size at verbosity level 4 (-vvvv).
-	* lzip.texi: Added chapter 'Output'.
+	* lzip.texi: New chapter 'Meaning of lzip's output'.
 
 2017-04-13  Antonio Diaz Diaz  <antonio@gnu.org>
 
@@ -36,20 +53,20 @@
 	* Decompression time has been reduced by 2%.
 	* main.cc: Continue testing if any input file is a terminal.
 	* main.cc: Show trailing data in both hexadecimal and ASCII.
-	* encoder.cc (Matchfinder_base): Verify size passed to new.
+	* encoder.cc (Matchfinder_base): Verify the size passed to new.
 	* lzip_index.cc: Improve detection of bad dict and trailing data.
-	* lzip.h: Unified messages for bad magic, trailing data, etc.
+	* lzip.h: Unify messages for bad magic, trailing data, etc.
 
 2016-05-14  Antonio Diaz Diaz  <antonio@gnu.org>
 
 	* Version 1.18 released.
-	* Added new option '-a, --trailing-error'.
+	* New option '-a, --trailing-error'.
 	* Decompression time has been reduced by 2%.
-	* decoder.cc (verify_trailer): Removed test of final code.
+	* 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.
-	* Removed decompression support for version 0 files.
-	* lzip.texi: Added chapter 'Trailing data'.
+	* Remove decompression support for version 0 files.
+	* lzip.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: A POSIX shell is required to run the tests.
@@ -59,8 +76,8 @@
 
 	* Version 1.17 released.
 	* Reorganization of the compression code.
-	* lzip.texi: Added chapter 'Quality assurance'.
-	* Makefile.in: Added new targets 'install*-compress'.
+	* lzip.texi: New chapter 'Quality assurance'.
+	* Makefile.in: New targets 'install*-compress'.
 
 2014-08-26  Antonio Diaz Diaz  <antonio@gnu.org>
 
@@ -70,8 +87,8 @@
 	* Compression time of option '-0' has been reduced by 2%.
 	* main.cc (close_and_set_permissions): Behave like 'cp -p'.
 	* Minor improvements.
-	* lzip.texinfo: Renamed to lzip.texi.
-	* License changed to GPL version 2 or later.
+	* lzip.texinfo: Rename to lzip.texi.
+	* Change license to GPL version 2 or later.
 
 2013-09-20  Antonio Diaz Diaz  <antonio@gnu.org>
 
@@ -80,7 +97,7 @@
 	* main.cc (show_header): Don't show header version.
 	* Ignore option '-n, --threads' for compatibility with plzip.
 	* configure: Options now accept a separate argument.
-	* lzip.texinfo: Added chapter 'Stream format' and appendix
+	* lzip.texinfo: New chapter 'Stream format' and appendix
 	  'Reference source code'.
 
 2013-02-17  Antonio Diaz Diaz  <ant_diaz@teleline.es>
@@ -90,7 +107,7 @@
 	* Compression ratio has been slightly increased.
 	* Compression time has been reduced by 5%.
 	* Decompression time has been reduced by 12%.
-	* Makefile.in: Added new target 'install-bin'.
+	* Makefile.in: New target 'install-bin'.
 	* main.cc: Use 'setmode' instead of '_setmode' on Windows and OS/2.
 	* main.cc: Define 'strtoull' to 'std::strtoul' on Windows.
 
@@ -103,21 +120,20 @@
 	* Compression time of option '-0' has been reduced by 2%.
 	* Reorganization of the compression code.
 	* Small change in '--help' output and man page.
-	* Changed quote characters in messages as advised by GNU Standards.
-	* configure: 'datadir' renamed to 'datarootdir'.
+	* Change quote characters in messages as advised by GNU Standards.
+	* configure: Rename 'datadir' to 'datarootdir'.
 	* 'unzcrash.cc' has been moved to package 'lziprecover'.
 
 2011-04-30  Antonio Diaz Diaz  <ant_diaz@teleline.es>
 
 	* Version 1.12 released.
-	* Added new option '-F, --recompress'.
+	* New option '-F, --recompress'.
 	* encoder.h (update_prices): Update high length symbol prices
 	  independently of the value of 'pos_state'. This gives better
 	  compression for large values of '--match-length' without being
 	  slower.
-	* encoder.h encoder.cc: Optimize pair price calculations. This
-	  reduces compression time for large values of '--match-length'
-	  by up to 6%.
+	* encoder.h, encoder.cc: Optimize pair price calculations, reducing
+	  compression time for large values of '--match-length' by up to 6%.
 	* Compression time of option '-0' has been reduced by 2%.
 	* main.cc (decompress): Print only one status line for each
 	  multimember file when only one '-v' is specified.
@@ -127,41 +143,39 @@
 	  " and '--stdout' was not specified" for directories, etc.
 	* lziprecover.cc: If '-v' is not specified show errors only.
 	* unzcrash.cc: Use Arg_parser.
-	* unzcrash.cc: Added new option '-b, --bits'.
-	* unzcrash.cc: Added new option '-p, --position'.
-	* unzcrash.cc: Added new option '-s, --size'.
+	* 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.
-	* Added new option '-0' which produces a compression speed and ratio
+	* New option '-0', which produces a compression speed and ratio
 	  comparable to those of 'gzip -9'.
-	* fast_encoder.h fast_encoder.cc: New files.
+	* fast_encoder.h, fast_encoder.cc: New files.
 	* main.cc: Match length limit set by options -1 to -8 has been
 	  reduced to extend range of use towards gzip. Lower numbers now
 	  compress less but faster. (-1 now takes 43% less time for only 20%
 	  larger compressed size).
+	  Exit with status 1 if any output file exists and is skipped.
 	* Compression ratio of option '-9' has been slightly increased.
-	* lziprecover.cc: Added new option '-m, --merge' which tries to
-	  produce a correct file merging the good parts of two or more
-	  damaged copies.
-	* lziprecover.cc: Added new option '-R, --repair' for repairing a
+	* 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: Added new option '-f, --force'.
-	* lziprecover.cc: Added new option '-o, --output'.
-	* lziprecover.cc: Added new option '-s, --split' to select the until
+	* 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.
-	* main.cc: Fixed warning about fchown's return value being ignored.
+	* main.cc: Fix warning about fchown's return value being ignored.
 	* decoder.cc: '-tvvvv' now also shows compression ratio.
 	* main.cc: Set stdin/stdout in binary mode on MSVC and OS2.
-	* lzip.texinfo: Added new examples.
-	* testsuite: 'test1' renamed to 'test.txt'. Added new tests.
+	* lzip.texinfo: New examples.
+	* testsuite: Rename 'test1' to 'test.txt'. New tests.
 	* Matchfinder types HC4 (4 bytes hash-chain) and HT4 (4 bytes
 	  hash-table) have been tested and found no better than the current
 	  BT4.
@@ -175,14 +189,14 @@
 	* main.cc: New constant 'o_binary'.
 	* main.cc: Dictionary size for options -2, -3, -4 and -8 has been
 	  changed to improve linearity of compressed sizes.
-	* lzip.h: Fixed warnings produced by over-optimization (-O3).
-	* Makefile.in: Added quotes to directory names.
+	* lzip.h: Fix warnings produced by over-optimization (-O3).
+	* Makefile.in: Add quotes to directory names.
 
 2010-01-17  Antonio Diaz Diaz  <ant_diaz@teleline.es>
 
 	* Version 1.9 released.
 	* main.cc (main): Return at least 1 if closing stdout fails.
-	* Makefile.in: Added '--name' option to help2man invocation.
+	* Makefile.in: Add option '--name' to help2man invocation.
 	* check.sh: Use 'test1' instead of 'COPYING' for testing.
 
 2009-09-02  Antonio Diaz Diaz  <ant_diaz@teleline.es>
@@ -190,41 +204,41 @@
 	* Version 1.8 released.
 	* Compression time has been reduced by 4%.
 	* Lzdiff and lzgrep have been moved to the new package zutils.
-	* Fixed warnings on systems where uint32_t != unsigned int.
+	* Fix warnings on systems where uint32_t != unsigned int.
 
 2009-06-25  Antonio Diaz Diaz  <ant_diaz@teleline.es>
 
 	* Version 1.7 released.
-	* decoder.h (copy_block): Fixed memcpy overlap introduced in 1.6.
+	* decoder.h (copy_block): Fix memcpy overlap introduced in 1.6.
 
 2009-06-22  Antonio Diaz Diaz  <ant_diaz@teleline.es>
 
 	* Version 1.6 released.
 	* Decompression time has been reduced by 17%.
-	* Added decompression support for Sync Flush marker.
-	* Added support for .tbz extension to lzdiff and lzgrep.
-	* Added man pages for lzdiff, lzgrep and lziprecover.
+	* Add decompression support for Sync Flush marker.
+	* Add support for the extension '.tbz' to lzdiff and lzgrep.
+	* Add man pages for lzdiff, lzgrep and lziprecover.
 	* encoder.cc (Matchfinder): Reduce memory use to 9x if input file is
 	  smaller than dictionary size limit.
-	* decoder.cc: Added extra flush calls to improve partial
-	  decompression of corrupt files.
+	* decoder.cc: Add extra flush calls to improve partial decompression
+	  of corrupt files.
 	* '--test' no longer needs '/dev/null'.
-	* Removed some 'bashisms' from lzdiff and lzgrep.
+	* Remove some 'bashisms' from lzdiff and lzgrep.
 	* Dictionary size for options '-1' to '-4' has been changed.
-	* main.cc (signal_handler): Declared as 'extern "C"'.
+	* main.cc (signal_handler): Declare as 'extern "C"'.
 	* Makefile.in: Extra files are now installed by default.
 	* check.sh: Test lziprecover.
-	* Added 'export LC_ALL=C' to all scripts.
+	* Add 'export LC_ALL=C' to all scripts.
 
 2009-04-12  Antonio Diaz Diaz  <ant_diaz@teleline.es>
 
 	* Version 1.5 released.
-	* lzip.h: Coded dictionary size implemented in Lzip_header.
-	* Fixed some includes that prevented compilation with GCC 4.4.
+	* lzip.h: Implement coded dictionary size in Lzip_header.
+	* Fix some includes that prevented compilation with GCC 4.4.
 	* 'member_size' and 'volume_size' are now accurate limits.
 	* Compression speed has been improved.
-	* Implemented bt4 type matchfinder.
-	* lzip.texinfo: Added chapter 'Algorithm'.
+	* Implement bt4 type matchfinder.
+	* lzip.texinfo: New chapter 'Algorithm'.
 	* Lzdiff and lzgrep now accept '-h' for '--help' and
 	  '-V' for '--version'.
 	* Makefile.in: Man page is now installed by default.
@@ -233,12 +247,11 @@
 2009-01-24  Antonio Diaz Diaz  <ant_diaz@teleline.es>
 
 	* Version 1.4 released.
-	* Implemented compression of version 1 files.
-	* Added new option '-b, --member-size'.
-	* Added new option '-S, --volume-size'.
-	* Added new option '-o, --output'.
-	* main.cc: Read from non regular files if '--stdout' is specified.
-	* Added 'lziprecover', a member recoverer program.
+	* Implement compression of version 1 files.
+	* New options '-b, --member-size', '-S, --volume-size', and
+	  '-o, --output'.
+	* main.cc: Read from non-regular files if '--stdout' is specified.
+	* Add 'lziprecover', a member recoverer program.
 	* unzcrash.cc: Test all 1-byte errors.
 
 2008-12-21  Antonio Diaz Diaz  <ant_diaz@teleline.es>
@@ -247,8 +260,8 @@
 	* This version automatically chooses the smallest possible
 	  dictionary size for each file during compression, saving memory
 	  during decompression.
-	* Implemented decompression of version 1 files.
-	* check.sh: Replaced 'diff -q' with 'cmp'.
+	* Implement decompression of version 1 files.
+	* check.sh: Replace 'diff -q' with 'cmp'.
 
 2008-12-10  Antonio Diaz Diaz  <ant_diaz@teleline.es>
 
@@ -256,18 +269,18 @@
 	* encoder.cc: A 1-byte read outside allocated memory has been fixed.
 	* lzip.h: Dictionary size limit has been reduced to 512MiB because
 	  setting it to 1GiB causes overflow of a 32 bit integer.
-	* Added 'lzdiff', a diff/cmp wrapper for gzip, bzip2, lzip and
+	* Add 'lzdiff', a diff/cmp wrapper for gzip, bzip2, lzip and
 	  non-compressed files.
-	* Added 'lzgrep', a grep wrapper for gzip, bzip2, lzip and
+	* Add 'lzgrep', a grep wrapper for gzip, bzip2, lzip and
 	  non-compressed files.
 	* 'make install-info' should now work on Debian and OS X.
 
 2008-11-17  Antonio Diaz Diaz  <ant_diaz@teleline.es>
 
 	* Version 1.1 released.
-	* Changed short name of option '--dictionary-size' to '-s'.
-	* Changed short name of option '--match-length' to '-m'.
-	* Changed LONG_LONG_MAX to LLONG_MAX.
+	* Change short name of option '--dictionary-size' to '-s'.
+	* Change short name of option '--match-length' to '-m'.
+	* Change LONG_LONG_MAX to LLONG_MAX.
 
 2008-10-14  Antonio Diaz Diaz  <ant_diaz@teleline.es>
 
@@ -283,14 +296,14 @@
 
 	* Version 0.4 released.
 	* Code cleanup for global variable 'verbosity'.
-	* Regained the compression ratio of 0.2 with 5% faster speed.
-	* Fixed compilation on systems where size_t != unsigned int.
+	* Regain the compression ratio of 0.2 with 5% faster speed.
+	* lzip.h: Fix compilation on systems where size_t != unsigned int.
 
 2008-09-15  Antonio Diaz Diaz  <ant_diaz@teleline.es>
 
 	* Version 0.3 released.
 	* encoder.cc: Compression is now 15% faster, 1% worse.
-	* main.cc (main): Make '-t' option override '-c'.
+	* main.cc (main): Make option '-t' override '-c'.
 	* main.cc (decompress): Show 'done' instead of 'ok' when not testing.
 	* encoder.h: Use trials[] to return the list of pairs.
 
@@ -305,8 +318,8 @@
 	* Version 0.1 released.
 
 
-Copyright (C) 2008-2019 Antonio Diaz Diaz.
+Copyright (C) 2008-2021 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.
+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.