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PK uZ!\j0��� � TODOnu �[��� TODO file for gzip. Some of the planned features include: - Remove some of the old porting cruft, since we no longer support it. - Separate out the shell scripts like gzexe into a new little package; these scripts are less used and less reliable and should be optional. - Internationalize by using gettext and setlocale. - Structure the sources so that the compression and decompression code form a library usable by any program, and write both gzip and zip on top of this library. This would ideally be a reentrant (thread safe) library, but this would degrade performance. In the meantime, you can look at the sample program zread.c. The library should have one mode in which compressed data is sent as soon as input is available, instead of waiting for complete blocks. This can be useful for sending compressed data to/from interactive programs. - Make it convenient to define alternative user interfaces (in particular for windowing environments). - Support in-memory compression for arbitrarily large amounts of data (zip currently supports in-memory compression only for a single buffer.) - Map files in memory when possible, this is generally much faster than read/write. (zip currently maps entire files at once, this should be done in chunks to reduce memory usage.) - Add a super-fast compression method, suitable for implementing file systems with transparent compression. The lzrw series of algorithms are available at http://www.ross.net/compression/. - Add a super-tight (but slow) compression method, suitable for long term archives. See, for example, US Patents 4,286,256 4,295,125 4,463,342 4,467,317 4,633,490 4,652,856 4,891,643 4,905,297 4,935,882 4,973,961 5,023,611 5,025,258, which have all expired. More recent patent-free techniques may also be available. Note: I will introduce new compression methods only if they are significantly better in either speed or compression ratio than the existing method(s). So the total number of different methods should reasonably not exceed 3. (The current 9 compression levels are just tuning parameters for a single method, deflation.) - Add optional error correction. One problem is that the current version of ecc cannot recover from inserted or missing bytes. It would be nice to recover from the most common error (transfer of a binary file in ascii mode). - Add a block size (-b) option to improve error recovery in case of failure of a complete sector. Each block could be extracted independently, but this reduces the compression ratio. For one possible approach to this, please see: https://ozlabs.org/~rusty/gzip.rsync.patch - Use a larger window size to deal with some large redundant files that 'compress' currently handles better than gzip. - Implement the -e (encrypt) option. Send comments to <bug-gzip@gnu.org>. ======================================================================== Copyright (C) 1999, 2001, 2006, 2009-2022 Free Software Foundation, Inc. Copyright (C) 1992, 1993 Jean-loup Gailly Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.3 or any later version published by the Free Software Foundation; with no Invariant Sections, with no Front-Cover Texts, and with no Back-Cover Texts. A copy of the license is included in the ``GNU Free Documentation License'' file as part of this distribution. PK uZ!\�ȜY�_ �_ NEWSnu �[��� GNU gzip NEWS -*- outline -*- * Noteworthy changes in release 1.12 (2022-04-07) [stable] ** Changes in behavior 'gzip -l' no longer misreports file lengths 4 GiB and larger. Previously, 'gzip -l' output the 32-bit value stored in the gzip header even though that is the uncompressed length modulo 2**32. Now, 'gzip -l' calculates the uncompressed length by decompressing the data and counting the resulting bytes. Although this can take much more time, nowadays the correctness pros seem to outweigh the performance cons. 'zless' is no longer installed on platforms lacking 'less'. ** Bug fixes zgrep applied to a crafted file name with two or more newlines can no longer overwrite an arbitrary, attacker-selected file. [bug introduced in gzip-1.3.10] zgrep now names input file on error instead of mislabeling it as "(standard input)", if grep supports the GNU -H and --label options. 'zdiff -C 5' no longer misbehaves by treating '5' as a file name. [bug present since the beginning] Configure-time options like --program-prefix now work. * Noteworthy changes in release 1.11 (2021-09-03) [stable] ** Performance improvements IBM Z platforms now support hardware-accelerated deflation. * Noteworthy changes in release 1.10 (2018-12-29) [stable] ** Changes in behavior Compressed gzip output no longer contains the current time as a timestamp when the input is not a regular file. Instead, the output contains a null (zero) timestamp. This makes gzip's behavior more reproducible when used as part of a pipeline. (As a reminder, even regular files will use null timestamps after the year 2106, due to a limitation in the gzip format.) ** Bug fixes A use of uninitialized memory on some malformed inputs has been fixed. [bug present since the beginning] A few theoretical race conditions in signal handers have been fixed. These bugs most likely do not happen on practical platforms. [bugs present since the beginning] * Noteworthy changes in release 1.9 (2018-01-07) [stable] ** Bug fixes gzip -d -S SUFFIX file.SUFFIX would fail for any upper-case byte in SUFFIX. E.g., before, this command would fail: $ :|gzip > kT && gzip -d -S T kT gzip: kT: unknown suffix -- ignored [bug present since the beginning] When decompressing data in 'pack' format, gzip no longer mishandles leading zeros in the end-of-block code. [bug introduced in gzip-1.6] When converting from system-dependent time_t format to the 32-bit unsigned MTIME format used in gzip files, if a timestamp does not fit gzip now substitutes zero instead of the timestamp's low-order 32 bits, as per Internet RFC 1952. When converting from MTIME to time_t format, if a timestamp does not fit gzip now warns and substitutes the nearest in-range value instead of crashing or silently substituting an implementation-defined value (typically, the timestamp's low-order bits). This affects timestamps before 1970 and after 2106, and timestamps after 2038 on platforms with 32-bit signed time_t. [bug present since the beginning] Commands implemented via shell scripts are now more consistent about failure status. For example, 'gunzip --help >/dev/full' now consistently exits with status 1 (error), instead of with status 2 (warning) on some platforms. [bug present since the beginning] Support for VMS and Amiga has been removed. It was not working anyway, and it reportedly caused file name glitches on MS-Windowsish platforms. * Noteworthy changes in release 1.8 (2016-04-26) [stable] ** Bug fixes gzip -l no longer falsely reports a write error when writing to a pipe. [bug introduced in gzip-1.7] Port to Oracle Solaris Studio 12 on x86-64. [bug present since at least gzip-1.2.4] When configuring gzip, ./configure DEFS='...-DNO_ASM...' now suppresses assembler again. [bug introduced in gzip-1.3.5] * Noteworthy changes in release 1.7 (2016-03-27) [stable] ** Changes in behavior The GZIP environment variable is now obsolescent; gzip now warns if it is used, and rejects attempts to use dangerous options or operands. You can use an alias or script instead. Installed programs like 'zgrep' now use the PATH environment variable as usual to find subsidiary programs like 'gzip' and 'grep'. Previously they prepended the installation directory to the PATH, which sometimes caused 'make check' to test the wrong gzip executable. [bug introduced in gzip-1.3.13] ** New features gzip now accepts the --synchronous option, which causes it to use fsync and similar primitives to transfer output data to the output file's storage device when the file system supports this. Although this option makes gzip safer in the presence of system crashes, it can make gzip considerably slower. gzip now accepts the --rsyncable option. This option is accepted in all modes, but has effect only when compressing: it makes the resulting output more amenable to efficient use of rsync. For example, when a large input file gets a small change, a gzip --rsyncable image of that file will remain largely unchanged, too. Without --rsyncable, even a tiny change in the input could result in a totally different gzip-compressed output file. ** Bug fixes gzip -k -v no longer reports that files are replaced. [bug present since the beginning] zgrep -f A B C no longer reads A more than once if A is not a regular file. This better supports invocations like 'zgrep -f <(COMMAND) B C' in Bash. [bug introduced in gzip-1.2] * Noteworthy changes in release 1.6 (2013-06-09) [stable] ** New features gzip now accepts the --keep (-k) option, for consistency with tools like xz, lzip and bzip2. With this option, gzip no longer removes named input files when compressing or decompressing. ** Bug fixes gzip -d no longer malfunctions with certain invalid data in 'pack' format. [bug introduced in gzip-0.8] When overwriting, gzip no longer acts as if you typed "y" when you type "n", on some platforms when compiled with optimization. [bug introduced in gzip-1.3.6] zgrep no longer malfunctions with a multi-digit context option like -15. Now, it passes that option to grep (equivalent to -C15) just as it does for single-digit options. [bug introduced in gzip-1.3.12] zmore now acts more like 'more', and is more portable to POSIXish hosts. * Noteworthy changes in release 1.5 (2012-06-17) [stable] ** Bug fixes gzip -d now decodes and checks header CRC16 checksums as specified by the FHCRC section of Internet RFC 1952. "gzip -d -S '' precious.gz" is now rejected immediately. Before, that command would emulate "rm -i precious.gz", but with an easily- misunderstood prompt. I.e., gzip would ask if it's ok to remove the existing file, "precious.gz". If you made the mistake of saying "yes", it would remove that input file before attempting to uncompress it. gzip -cdf now properly handles input consisting of gzip'd data followed by uncompressed data. Before it would output raw compressed input, too. For example, now "(printf x|gzip; echo y)|gzip -dcf" prints "xy\n", while before it would print "x<compressed data>y\n". gzip -rf no longer compresses files more than once (e.g., replacing FOO with FOO.gz.gz) on file systems such as ZFS where a readdir loop that unlinks and creates files can revisit output files. * Noteworthy changes in release 1.4 (2010-01-20) [stable] ** Bug fixes gzip -d could segfault and/or clobber the stack, possibly leading to arbitrary code execution. This affects x86_64 but not 32-bit systems. This fixes CVE-2010-0001. For more details, see https://bugzilla.redhat.com/554418 gzip -d would fail with a CRC error for some valid inputs. So far, the only valid input known to exhibit this failure was compressed "from FAT filesystem (MS-DOS, OS/2, NT)". In addition, to trigger the failure, your memcpy implementation must copy in the "reverse" order. * Noteworthy changes in release 1.3.14 (2009-10-30) [beta] ** Bug fixes gzip no longer fails when there is exactly one trailing NUL byte gzip has always accepted trailing NUL bytes. Note the plural. zdiff would exit with status 2 (indicating an error) rather than 1 to indicate differences when both inputs were compressed and different. zdiff would fail to print differences in two compressed inputs zgrep -f - didn't work * Noteworthy changes in release 1.3.13 (2009-09-30) [stable] ** 'gzip -f foo.gz' now creates a file foo.gz.gz instead of complaining. ** Bug fixes gzip -d no longer fails with "-" as 2nd or subsequent argument gzip no longer ignores a close-induced write failure, e.g., on NFS gzip -d no longer segfaults on certain invalid inputs Major changes in Gzip 1.3.12 (2007-04-13) * znew now uses $TMPDIR (default /tmp) instead of always using /tmp. * It is now documented that gzip ignores case when examining file name extensions; for example, 'gzip test.Gz' (without -f) fails because the file name ends in '.Gz'. Major changes in Gzip 1.3.11 (2007-02-05) * As per the GNU coding standards, the behavior of gzip and its companion executables no longer depend on the name used to invoke them. For example, 'gzip' and 'gunzip' are no longer hard links; instead, 'gunzip' is now a small program that invokes 'gzip -d'. * zdiff now checks for subsidiary gzip failures, and works around bugs in IRIX 6 sh, Tru64 4.0F ksh, and Solaris 8 bash. Major changes in Gzip 1.3.10 (2006-12-30) * gzip -c and zcat now work on special files, files with special mode bits, and files with multiple hard links. * gzip -q now exits with status 2 (not 1) when SIGPIPE is received. * zcmp and zdiff did not work in the usual case, due to a typo. * zgrep has many bugs fixed with argument handling, special characters, and exit status. * zless no longer mishandles $%=~ in file names. Gzip 1.3.9 (2006-12-15) * No major changes; only porting fixes. Major changes in Gzip 1.3.8 (2006-12-08) * Fix some gzip problems: - A security fix from Debian 1.3.5-5 was inadvertently omitted. - The assembler is now invoked with --noexecstack if supported, so that gzip can better resist stack-smashing attacks. Major changes in Gzip 1.3.7 (2006-12-06) * Fix some gzip problems: - Refuse to compress setuid or setgid files, or files with the sticky bit. - Fix more race conditions in setting file permissions and owner, removing output files, following symbolic links, and dealing with special files. - Remove most of the code working around ENAMETOOLONG deficiencies. Systems with those deficiencies are long-dead, and the workarounds had race conditions on modern hosts. - Catch CPU time and file size limit signals, too. - Check for read errors when closing files. - Fix a core dump caused by a stray abort mistakenly introduced in 1.3.6. * Fix some gzexe problems: - Improve resistance to denial-of-service attacks. - Fix some quoting and escaping bugs. - Do not assume /tmp is sticky (though it should be!). - Do not assume the working directory can be written. - Rely on PATH in the generated executable, as the man page says. - Don't assume IFS is sane. - Exit with signal's status, if signaled. Major changes in Gzip 1.3.6 (2006-11-20) * Fix some race conditions in setting file timestamps, permissions, and owner. * Fix some race conditions in signal handling. * When gzip exits due to a signal, it exits with the signal's status, not 1. * gzip now restores file timestamps to the resolution supported by the time-setting primitives of the operating system, typically 1 microsecond. Formerly it restored them only to the nearest second. * gzip -r no longer attempts to reset the last-access times of directories it reads, as this messes up when other processes are reading the directories. * The options --version and --help now work on all gzip-installed executables, and now use a format similar to other GNU programs. * The manual is now distributed under the terms of the GNU Free Documentation License without invariant sections or cover texts. * Port to current versions of Autoconf, Automake, and Gnulib. Major changes from 1.3.4 to 1.3.5 * gzip now removes any output symlink before writing output file. * zgrep etc. scripts now port to POSIX 1003.1-2001 hosts. * zforce no longer assumes 14-byte file name length limit. * zless is now implemented using less and LESSOPEN, not zmore and PAGER. * assembly-language speedups reenabled; were mistakenly disabled in 1.3. Major changes from 1.3.3 to 1.3.4 * Less output is lost when decompressing a truncated file. * The manual is now distributed under the terms of the GNU Free Documentation License. No major changes in 1.3.2 or 1.3.3 (bug fixes only) Major changes from 1.3 to 1.3.1 * zgrep now supports --, -H, -h, -L, -l, -C, -d, -m and their long equivalents. Major changes from 1.2.4 to 1.3 * Add support for large files, e.g. files larger than 2 GB on Solaris 2.6. * Adjust file size listing format for files larger than 10 GB. * New command `zless'. * `zdiff' now reports exit status like `diff' does. * `zcat' is now always called `zcat', not `gzcat'. Similarly for `zdiff', `zgrep', `zmore', `znew', `zforce'. * Warn about a compressed file's trailing zeros only if verbose, for compatibility with recent versions of GNU tar. * Conform to changes to GNU makefile standards. * Port to Autoconf 2.13. * Convert to Automake. * Fix bugs in the following areas: - files larger than 4 GB - security hole involving symlinks from /tmp - security hole involving long file names - permissions bug when compressing a symbolic link to a file - core dumps - concatenated compressed files on INBUFSIZ boundaries - porting bugs on hosts with signed chars - porting bug with upper and lower case - porting bug for hosts that reserve the names `basename' or `warning' Major changes from 1.2.3 to 1.2.4 * By default, do not restore file name and timestamp from those saved inside the .gz file (behave as 'compress'). Added the --name option to force name and timestamp restoration. * Accept - as synonym for stdin. * Use manlinks=so or ln to support either hard links or .so in man pages * Accept foo.gz~ in zdiff. * Added support for Windows NT * Handle ENAMETOOLONG for strict Posix systems * Use --recursive instead of --recurse to comply with Webster and the GNU stdandard. * Allow installation of shell scripts with a g prefix: make G=g install * Install by default zcat as gzcat if gzcat already exists in path. * Let zmore behave as more when invoked without parameters (give help) * Let gzip --list reject files not in gzip format even with --force. * Don't complain about non gzip files for options -rt or -rl. * Added advice in INSTALL for several systems. Major changes from 1.2.2 to 1.2.3 * Don't display the output name when decompressing except with --verbose. * Remove usage of alloca in getopt.c and all makefiles. * Added the zfile shell script in subdirectory sample. * Moved the list of compiler bugs from README to INSTALL. * Added vms/Readme.vms. Major changes from 1.2.1 to 1.2.2 * Fix a compilation error on Sun with cc (worked with gcc). Major changes from 1.2 to 1.2.1 * Let zmore act as more if the data is not gzipped. * made gzexe more secure (don't rely on PATH). * By default, display output name only when the name was actually truncated. Major changes from 1.1.2 to 1.2 * Added the --list option to display the file characteristics. * Added the --no-name option: do not save or restore original filename Save the original name by default. * Allow gunzip --suffix "" to attempt decompression on any file regardless of its extension if an original name is present. * Add support for the SCO compress -H format. * gzip --fast now compresses faster (speed close to that of compress) with degraded compression ratio (but still better than compress). Default level changed to -6 (acts exactly as previous level -5) to be a better indication of its placement in the speed/ratio range. * Use smart name truncation: 123456789012.c -> 123456789.c.gz instead of 12345678901.gz * With --force, let zcat pass non gzip'ed data unchanged (zcat == cat) * Added the zgrep shell script. * Made sub.c useful for 16 bit sound, 24 bit images, etc.. * Suppress warnings about suffix for gunzip -r, except with --verbose. * On MSDOS, use .gz extension when possible (files without extension) * Moved the sample programs to a subdirectory sample. * Added a "Special targets" section in INSTALL. Major changes from 1.1.1 to 1.1.2. * Fix serious bug for VMS (-gz not removed when decompressing). * Allow suffix other than .gz in znew. * Do not display compression ratio when decompressing stdin. * In zmore.in, work around brain damaged stty -g (Ultrix). * Display a correct compression ratio for .Z files. * Added .z to .gz renaming script in INTALL. * Allow setting CFLAGS in configure. Major changes from 1.1 to 1.1.1. * Fix serious bug in vms.c (affects Vax/VMS only). * Added --ascii option. * Add workaround in configure.in for Ultrix (quote eval argument) Major changes from 1.0.7 to 1.1. * Use .gz suffix by default, add --suffix option. * Let gunzip accept a "_z" suffix (used by one 'compress' on Vax/VMS). * Quit when reading garbage from stdin instead of reporting an error. * Added makefile for VAX/MMS and support for wildcards on VMS. * Added support for MSC under OS/2. * Added support for Prime/PRIMOS. * Display compression ratio also when decompressing (with --verbose). * Quit after --version (GNU standard) * Use --force to bypass isatty() check * Continue processing other files in case of recoverable error. * Added comparison of zip and gzip in the readme file. * Added small sample programs (ztouch, sub, add) * Use less memory when compiled with -DSMALL_MEM (for MSDOS). * Remove the "off by more than one minute" timestamp kludge Major changes from 1.0.6 to 1.0.7. * Allow zmore to read from standard input (like more). * Support the 68000 (Atari ST) in match.S. * Retry partial writes (required on Linux when gzip is suspended in a pipe). * Allow full pathnames and renamings in gzexe. * Don't let gzexe compress setuid executables or gzip itself. * Added vms/Makefile.gcc for gcc on the Vax. * Allow installation of binaries and shell scripts in different dirs. * Allows complex PAGER variable in zmore (e.g.: PAGER="col -x | more") * Allow installation of zcat as gzcat. * Several small changes for portability to old or weird systems. * Suppress help message and send compressed data to the terminal when gzip is invoked without parameters and without redirection. * Add compile option GNU_STANDARD to respect the GNU coding standards: with -DGNU_STANDARD, behave as gzip even if invoked under the name gunzip. (I don't like the last two changes, which were requested by the FSF.) Major changes from 1.0.5 to 1.0.6. * Let gzexe detect executables that are already gzexe'd. * Keep file attributes in znew and gzexe if cpmod is available. * Don't try restoring record format on VMS (1.0.5 did not work correctly) * Added asm version for 68000 in amiga/match.a. Use asm version for Atari TT and NeXT. * For OS/2, assume HPFS by default, add flag OS2FAT if necessary. * Fixed some bugs in zdiff and define zcmp as a link to zdiff. Major changes from 1.0.4 to 1.0.5. * For VMS, restore the file type for variable record format, otherwise extract in fixed length format (not perfect, but better than forcing all files to be in stream_LF format). * For VMS, use "-z" default suffix and accept a version number in file names. * For Unix, allow compression of files with name ending in 'z'. Use only .z, .*-z, .tgz, .taz as valid gzip extensions. In the last two cases, extract to .tar by default. * On some versions of MSDOS, files with a 3 character extension could not be compressed. * Garbage collect files in /tmp created by gzexe. * Fix the 'OS code' byte in the gzip header. * For the Amiga, add the missing utime.h and add support for gcc. Major changes from 1.0.3 to 1.0.4. * Added optimized asm version for 68020. * Add support for DJGPP. * Add support for the Atari ST. * Added zforce to rename gzip'ed files with truncated names. * Do not install with name uncompress (some systems rely on the absence of any check in the old uncompress). * Added missing function (fcfree) in msdos/tailor.c * Let gunzip handle .tgz files, and let gzip skip them. * Added -d option (decompress) for gzexe and try preserving file permissions. * Suppress all warnings with -q. * Use GZIP_OPT for VMS to avoid conflict with program name. * ... and many other small changes (see ChangeLog) Major changes from 1.0.2 to 1.0.3 * Added -K option for znew to keep old .Z files if smaller * Added -q option (quiet) to cancel -v in GZIP env variable. * Made gzexe safer on systems with filename limitation to 14 chars. * Fixed bugs in handling of GZIP env variable and incorrect free with Turbo C. Major changes from 1.0.1 to 1.0.2 * Added env variable GZIP for default options. Example: for sh: GZIP="-8 -v"; export GZIP for csh: setenv GZIP "-8 -v" * Added support for the Amiga. * znew now keeps the old .Z if it is smaller than the .z file. This can happen for some large and very redundant files. * Do not complain about trailing garbage for record oriented IO (Vax/VMS). This implies however that multi-part gzip files are not supported on such systems. * Added gzexe to compress rarely used executables. * Reduce memory usage (required for MSDOS and useful on all systems). * Preserve timestamp in znew -P (pipe option) if touch -r works. Major changes from 1.0 to 1.0.1 * fix trivial errors in the Borland makefile (msdos/Makefile.bor) Major changes from 0.8.2 to 1.0 * gzip now runs on Vax/VMS * gzip will not not overwrite files without -f when using /bin/sh in background. * Support the test option -t for compressed (.Z) files. Allow some data recovery for bad .Z files. * Added makefiles for MSDOS (Only tested for MSC, not Borland). * still more changes to configure for several systems Major changes from 0.8.1 to 0.8.2: * yet more changes to configure for Linux and other systems * Allow zcat on a file with multiple links. Major changes from 0.8 to 0.8.1: * znew has now a pipe option -P to reduce the disk space requirements, but this option does not preserve timestamps. * Fixed some #if directives for compilation with TurboC. Major changes from 0.7 to 0.8: * gzip can now extract .z files created by 'pack'. * configure should no longer believe that every machine is a 386 * Fix the entry for /etc/magic in INSTALL. * Add patch for GNU tar 1.11.1 and a pointer to crypt++.el * Uncompress files with multiple links only with -f. * Fix for uncompress of .Z files on 16-bit machines * Create a correct output name for file names of exactly N-1 chars when the system has a limit of N chars. Major changes from 0.6 to 0.7: * Use "make check" instead of "make test". * Keep timestamp and pass options to gzip in znew. * Do not create .z.z files with gzip -r. * Allow again gunzip .zip files (was working in 0.5) * Allow again compilation with TurboC 2.0 (was working in 0.4) Major changes form 0.5 to 0.6: * gunzip reported an error when extracting certain .z files. The .z files produced by gzip 0.5 are correct and can be read by gunzip 0.6. * gunzip now supports multiple compressed members within a single .z file. * Fix the check for i386 in configure. * Added "make test" to check for compiler bugs. (gcc -finline-functions is broken at least on the NeXT.) * Use environment variable PAGER in zmore if it is defined. * Accept gzcat in addition to zcat for people having /usr/bin before /usr/local/bin in their path. ======================================================================== Copyright (C) 1999, 2001-2002, 2006-2007, 2009-2022 Free Software Foundation, Inc. Copyright (C) 1992, 1993 Jean-loup Gailly Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.3 or any later version published by the Free Software Foundation; with no Invariant Sections, with no Front-Cover Texts, and with no Back-Cover Texts. A copy of the license is included in the ``GNU Free Documentation License'' file as part of this distribution. PK uZ!\O�μb b AUTHORSnu �[��� gzip was written by Jean-loup Gailly <jloup@gzip.org>, and Mark Adler for the decompression code. PK uZ!\�l H�3 �3 THANKSnu �[��� gzip was written by Jean-loup Gailly <gzip@gnu.org>, with portions written by Mark Adler (inflate.c), Peter Jannesen (unlzw.c) and Haruhiko Okumura (unlzh.c). The zip deflate format was defined by Phil Katz. Thanks to those who reported problems and suggested various improvements. Here is a partial list of them: Robert Abramovitz bromo@cougar.tandem.com Jay Adams jka@ece.cmu.edu Mark Adler madler@cco.caltech.edu Edwin Allum edwin@csri.toronto.edu Joseph Arceneaux jla@gnu.ai.mit.edu Tim Auckland tda10@cus.cam.ac.uk Ken-ichiro Aoki aoki@madonna.physics.ucla.edu David Ascher da@marlowe.cog.brown.edu Eric Backus ericb@lsid.hp.com Becky A. Badgett badgett@cs.utexas.edu Bo Nygaard Bai bai@iesd.auc.dk Dave Barber dbarber@apocalypse.bbn.com Rene Beaulieu reneb@distri.hydro.qc.ca Neal Becker neal@ctd.comsat.com Dieter Becker becker@med-in.uni-sb.de Nelson H. F. Beebe beebe@geronimo.math.utah.edu Jeff Beadles jeff@onion.rain.com David J. N. Begley dbegley@st.nepean.uws.edu.au Bob Beresh rberesh@rd.hydro.on.ca Jim Bernard jbernard@iola.mines.colorado.edu Karl Berry karl@cs.umb.edu James W. Birdsall jwbirdsa@picarefy.picarefy.com Scott Bolte scott@craycos.com Wayne E. Bouchard web@paladine.hacks.arizona.edu Marc Boucher marc@cam.org Ola Brahammar pt90ob@pt.hk-r.se Dave Brennan brennan@hal.com Alan Brown dogbowl@dogbox.acme.gen.nz Michael L. Brown brown@wi.extrel.com Rodney Brown rdb@mel.cocam.oz.au Bruce bde@runx.oz.au Bill Bumgarner bbum@stone.com Leila Burrell-Davis leilabd@syma.sussex.ac.uk Roger Butenuth butenuth@ira.uka.de Jon Cargille jcargill@cs.wisc.edu Bud Carlson bud@isle.pegasus.com Lim Fung Chai fclim@i1sin.daq.semi.harris.com Wes Chalfant wes@kofax.com Andrew A. Chernov ache@astral.msk.su Paul Close pdc@lunch.wpd.sgi.com Jeff Coffler coffler@jac.enet.dec.com Will Colley wcc3@occs.cs.oberlin.edu Roger Cornelius sherpa!rac@uunet.uu.net Kevin Cosgrove kevinc@tekig6.pen.tek.com Stephen J Cowley s.j.cowley@amtp.cam.ac.uk Ron Cox roncox@indirect.com Frank Crawford frank@photon.ansto.gov.au James R. Crawford qralston@cislabs.pitt.edu Lawrence Crowl crowl@research.cs.orst.edu Klaus Dahlenburg kdburg@incoahe.hanse.de William E Davidsen davidsen@ariel.crd.ge.com John M. DeDourek dedourek@aixive2.cs.unb.ca Jeff Deifik jdeifik@isi.edu Vince DeMarco vince@whatnxt.cuc.ab.ca Michael De La Rue p91152@cplab.physics.edinburgh.ac.uk Jeff Delinck delinck@pa621a.inland.com John DeRoo deroo@grout.adv.shr.dec.com Jim Diamond zsd@axe.drea.dnd.ca Stefano Diomedi sd@teculx.tecsiel.it Lawrence R. Dodd dodd@roebling.poly.edu Matthew Donadio donadio@mxd120.rh.psu.edu Andy Dougherty andy@crystal.phys.lafayette.edu Darrell Duane dduane@mason1.gmu.edu John Eaton jwe@che.utexas.edu Will Edgington wedgingt@ptolemy.arc.nasa.gov Brian Edmonds edmonds@edmonds.home.cs.ubc.ca Paul Eggert eggert@cs.ucla.edu Enami enami@sys.ptg.sony.co.jp Kristoffer Eriksson ske@pkmab.se Daniel Eriksson m91der@bellatrix.tdb.uu.se Denis Excoffier 3.1416@free.fr Rik Faith faith@cs.unc.edu Larry Fahnoe fahnoe@c1mpls.mn.org Cristian Ferretti cfs@poincare.mat.puc.cl Karl-Jose Filler pla_jfi@pki-nbg.philips.de Valery Fine fine@vxcern.cern.ch Bob Fischer bobf@milne.geology.yale.edu Per Foreby perf@efd.lth.se Alexander Fraser alex@cs.umb.edu Noah Friedman friedman@gnu.ai.mit.edu Bob Friesenhahn bfriesen@iphase.com Gerhard Friesland-Köpke frieslan@rzdspc3.informatik.uni-hamburg.de Andy Fyfe andy@scp.caltech.edu Geoff geoff@frs.faxon.com Arnd Gerns gerns@informatik.uni-hildesheim.de Kaveh R. Ghazi ghazi@staccato.rutgers.edu Torbjorn Granlund tege@sics.se Carl Greco cgreco@parrot.creighton.edu Bruno Haible haible@ma2s2.mathematik.uni-karlsruhe.de Junio Hamano junio@shadow.twinsun.com Harald Hanche-Olsen hanche@ams.sunysb.edu Darrel R. Hankerson hankedr@mail.auburn.edu Mark Hanning-Lee markhl@romeo.caltech.edu Lars Hecking st000002@hrz1.hrz.th-darmstadt.de Aki Helin aki.helin@iki.fi Rüdiger Helsch ruediger@ramz.ing.tu-bs.de Mark C. Henderson mch@sqwest.wimsey.bc.ca Karl Heuer karl@kelp.boston.ma.us Jarkko Hietaniemi jhi@dol-guldur.hut.fi Thomas Hiller hiller@fzi.de Eiji Hirai hirai@cc.swarthmore.edu Kjetil Torgrim Homme kjetilho@ifi.uio.no Robert D. Houk rdh@sli.com Jim Howard jim_howard@mentorg.com Preston Hunt gt5708a@prism.gatech.edu Shane C Hutchins sch@nymph.msel.unh.edu Hutch hutchinson@wrair-emh1.army.mil Lester Ingber ingber@alumni.caltech.edu Ken Ishii ishii@sni-usa.com Per Steinar Iversen iversen@vsfys1.fi.uib.no Chris Jacobsen jacobsen@xray1.physics.sunysb.edu Michal Jaegermann ntomczak@vm.ucs.ualberta.ca Brian Jones brianj@skat.usc.edu Denny de Jonge witaddj@dutrex.tudelft.nl Arne H. Juul arnej@lise.unit.no Dana Jacobsen jacobsd@solar.cor2.epa.gov Peter Jannesen peter@ncs.nl Sverre Jarp Brian D. Johnston johnstonb@med.ge.com Walter W. Jones wwj@candela.cfr.nist.gov Tom Judson judson@scf.usc.edu Henry G. Juengst juengst@saph2.physik.uni-bonn.de Sarantos Kapidakis sarantos%manteion@ics.forth.gr Amir J. Katz amir@matis.ingr.com Steve Kelem kelem@castor.xilinx.com Steven Kimball kimball@shrew.sanders.lockheed.com Randy Kirchhof rkk@posms.aus.tx.us Ned Kittlitz kittlitz@seagoon.sw.stratus.com Sakai Kiyotaka ksakai@mtl.t.u-tokyo.ac.jp Philip C Kizer pckizer@gonzo.tamu.edu Pete Klammer pklammer@ouray.denver.colorado.edu Fritz Kleemann kleemann@informatik.uni-wuerzburg.dbp.de Wilhelm B. Kloke wb@ifado.arb-phys.uni-dortmund.de Tom Kloos tk@sequent.com Carsten Koch carsten.koch@icem.de Winfried König win@in.rhein-main.de Mathias Körber mathias@solomon.technet.sg Steph Konigsdorfer s.konigsdorfer@frmy.bull.fr Leif Kornstaedt leif@rumtifsl.ruessel.sub.org Michael D. Lawler mdlawler@bsu-cs.bsu.edu Kevin Layer layer@franz.com Howard D. Leadmon howardl@wb3ffv.ampr.org Alexander Lehmann alex@hal.rhein-main.de Simon Leinen simon@lia.di.epfl.ch Burt Leland burt@molecular.com Tony Leneis tony@plaza.adp.ds.com Hugues Leroy hugues.leroy@irisa.fr Marty Leisner leisner@eso.mc.xerox.com Charles Levert charles@aramis.comm.polymtl.ca Richard Levitte levitte@e.kth.se Torbj|rn Lindh toobii@elixir.e.kth.se David R. Linn drl@vuse.vanderbilt.edu Antonio Lioy cat@athena.polito.it Jamie Lokier u90jl@ecs.oxford.ac.uk Richard Lloyd R.K.Lloyd@csc.liv.ac.uk David J. MacKenzie djm@eng.umd.edu John R MacMillan john@chance.gts.org Ron Male male@eso.mc.xerox.com Don R. Maszle maze@bea.lbl.gov Jaye Mathisen osyjm@cs.montana.edu Telly Mavroidis mavroidi@acf2.nyu.edu Imed Eddine Mbarki mbarki@pacific.cmpe.psu.edu Steeve McCauley steeve@pooh.geophys.mcgill.ca Tom McConnell tmcconne@sedona.intel.com Tod McQuillin mcquill@ccit05.duq.edu Tye McQueen tye@spillman.com Bernd Melchers melchers@chemie.fu-berlin.de Jason Merrill jason@jarthur.claremont.edu Dean S. Messing deanm@medulla.labs.tek.com M. Mesturino mesturino@cselt.stet.it Luke Mewburn zak@rmit.edu.au Jim Meyering meyering@cs.utexas.edu Dragan Milicic milicic@math.utah.edu Frédéric Miserey none.fred@applelink.apple.com Marcel J.E. Mol marcel@duteca.et.tudelft.nl Soren Juul Moller sjm@dde.dk Chris Moore moore@src.bae.co.uk Dan Mosedale mosedale@genome.stanford.edu Helmut Mülner hmuelner@fiicmds04.tu-graz.ac.at Urban D Müller umueller@amiga.physik.unizh.ch Ulrich Müller ulm@vsnhdb.cern.ch Timothy Murphy tim@maths.tcd.ie Greg Naber greg@squally.halcyon.com Jay Nayegandhi jayng@bbiv02.enet.dec.com Paul K. Neville II pkn2@idsi.com Karl L. Noell noell@informatik.fh-wiesbaden.dbp.de Demizu Noritoshi nori-d@is.aist-nara.ac.jp Todd Ogasawara todd@protege.pegasus.com Helge Oldach helge.oldach@stollmann.de Arthur David Olson ado@elsie.nci.nih.gov Piet van Oostrum piet@cs.ruu.nl Rafael R. Pappalardo rafapa@obelix.cica.es Mike Pearlman canuck@masc38.rice.edu Jörg-Volker Peetz peetz@dynato-kyma.net Yves Perrenoud pyves@nuga.alphanet.ch Hal Peterson hrp@pecan.cray.com Pascal Petit petit@cadillac.ibp.fr Bruno Pillard bp@chorus.fr François Pinard pinard@iro.umontreal.ca Jay Pinkos pinkos@butyng.bu.edu Petr Písař petr.pisar@atlas.cz Thomas Plass thomas@cogsci.ed.ac.uk Mike Polo mikep@cfsmo.honeywell.com Francesco Potortì pot@fly.cnuce.cnr.it Will Priest bpriest@lobby.ti.com David Purves purves@apogee.com Andreas Raab ar@nvmr.robin.de Eric S. Raymond esr@snark.thyrsus.com Klaus Reimann kr@cip.physik.uni-stuttgart.de Michael Rendell michael@mercury.cs.mun.ca Hal Render render@massive.uccs.edu Julian F. Reschke julian@math.uni-muenster.de Phil Richards Phil.Richards@prg.oxford.ac.uk Roland B Roberts roberts@nsrl31.nsrl.rochester.edu Arnold Robbins arnold@cc.gatech.edu Kevin Rodgers kevin@rolling-stone.den.mmc.com Kai Uwe Rommel rommel@informatik.tu-muenchen.de Paul Rubin phr@america.telebit.com Wolfgang Rupprecht wolfgang@wsrcc.com Jonathan Ryshpan jon@amito.hitachi.com Paul A Sand pas@unh.edu Tony Sanders sanders@bsdi.com Mike Sangrey mike@sojurn.lns.pa.us Niimi Satoshi a01309@cfi.waseda.ac.jp Marc Schaefer sysadm@alphanet.ch Andreas Schwab schwab@lamothe.informatik.uni-dortmund.de Eric Schenk schenk@cs.toronto.edu Eric P. Scott eps@cs.sfsu.edu Olaf Seibert rhialto@mbfys.kun.nl Sunando Sen sens@fasecon.econ.nyu.edu Harry Shamansky hts@hertz.eng.ohio-state.edu Amos Shapira amoss@cs.huji.ac.il Rick Sladkey jrs@world.std.com Daniel L Smith dls@autodesk.com Fred Smith fredex%fcshome@merk.merk.com Ripduman Sohan Ripduman.Sohan@cl.cam.ac.uk Stephen Soliday soliday@ncat.edu Paul Southworth pauls@css.itd.umich.edu Rob Spencer robbie@winkle.bhpese.oz.au Richard Stallman rms@gnu.ai.mit.edu Carsten Steger carsten.steger@informatik.tu-muenchen.de David Sundstrom sunds@anon.asic.sc.ti.com Ed Sznyter ews@babel.babel.com Hideaki Tanabe arctanx@iyeyasu.ynl.t.u-tokyo.ac.jp Andrew Telford ajt@peregrin.resmel.bhp.com.au Glenn E. Thobe thobe@getunx.info.com Kei Thomsen kt@keihh.hanse.de Karsten Thygesen karthy@dannug.dk Mark Towfiq towfiq@microdyne.com Jeff Treece treece@sabbagh.com Oliver Trepte oliver@ikaros.fysik4.kth.se Stephane Tsacas slt@is21.isoft.fr Stephen Tweedie sct@dcs.ed.ac.uk John R. Vanderpool fish@daacdev1.stx.com Sotiris Vassilopoulos vassilopoulos@virginia.edu Pedro A. M. Vazquez vazquez@iqm.unicamp.br Arjan de Vet devet@win.tue.nl Larry W. Virden lvirden@cas.org Vadim V. Vlasov vvlasov@inucres.msk.su Eduard Vopicka eduard.vopicka@vse.cs Theo Vosse vosse@ruls41.leidenuniv.nl Darin Wayrynen darin@pcg.uucp Marcel Waldvogel marcel@nice.usergroup.ethz.ch Stephen J. Walick steve@nshore.org Gray Watson gray@antaire.com David Watt dmwatt@smersh.cambridge.ma.us Scott Weikart scott@igc.apc.org Ivo Welch iwelch@agsm.ucla.edu Jochen Wiedmann zrawi01@zmcipdec1.zdv.uni-tuebingen.de Gijsb. Wiesenekker wiesenecker@sara.nl Wietze van Winden wietze@swi.psy.uva.nl Frank Wübbeling wuebbel@math.uni-muenster.de Larry W. Virden lwv26@cas.org Bill Wohler wohler@sap-ag.de Jamie Zawinski jwz@lucid.com Christos Zoulas christos@deshaw.com PK uZ!\�&��� � READMEnu �[��� This is the file README for the gzip distribution. The GNU gzip home page is https://www.gnu.org/software/gzip. gzip (GNU zip) is a compression utility designed to be a replacement for 'compress'. Its main advantages over compress are much better compression and freedom from patented algorithms. The GNU Project uses it as the standard compression program for its system. gzip currently uses by default the LZ77 algorithm used in zip 1.9 (the portable pkzip compatible archiver). The gzip format was however designed to accommodate several compression algorithms. See below for a comparison of zip and gzip. gunzip can currently decompress files created by gzip, compress or pack. The detection of the input format is automatic. For the gzip format, gunzip checks a 32 bit CRC. For pack, gunzip checks the uncompressed length. The 'compress' format was not designed to allow consistency checks. However gunzip is sometimes able to detect a bad .Z file because there is some redundancy in the .Z compression format. If you get an error when uncompressing a .Z file, do not assume that the .Z file is correct simply because the standard uncompress does not complain. This generally means that the standard uncompress does not check its input, and happily generates garbage output. gzip produces files with a .gz extension. Previous versions of gzip used the .z extension, which was already used by the 'pack' Huffman encoder. gunzip is able to decompress .z files (packed or gzip'ed). Several planned features are not yet supported (see the file TODO). See the file NEWS for a summary of changes since the last release. See the file INSTALL for installation instructions. WARNING: gzip is sensitive to compiler bugs, particularly when optimizing. Use "make check" to check that gzip was compiled correctly. Try compiling gzip without any optimization if you have a problem. Please send all comments and bug reports by electronic mail to <bug-gzip@gnu.org>. Bug reports should ideally include: * The complete output of "gzip -V" (or the contents of revision.h if you can't get gzip to compile) * The hardware and operating system (try "uname -a") * The compiler used to compile (if it is gcc, use "gcc -v") * A description of the bug behavior * The input to gzip, that triggered the bug If you send me patches for machines I don't have access to, please test them very carefully. gzip is used for backups, it must be extremely reliable. The znew and gzexe shell scripts provided with gzip benefit from (but do not require) the (non-GNU) cpmod utility to transfer file attributes. The sample programs zread.c, sub.c and add.c in subdirectory sample are provided as examples of useful complements to gzip. Read the comments inside each source file. The perl script ztouch is also provided as example (not installed by default since it relies on perl). gzip is free software, you can redistribute it and/or modify it under the terms of the GNU General Public License, a copy of which is provided under the name COPYING. The latest version of gzip is always available from https://ftp.gnu.org/gnu/gzip or in any of the GNU mirror sites. Many thanks to those who provided me with bug reports and feedback. See the files THANKS and ChangeLog for more details. Note about zip vs. gzip: The name 'gzip' was a very unfortunate choice, because zip and gzip are two really different programs, although the actual compression and decompression sources were written by the same persons. A different name should have been used for gzip, but it is too late to change now. zip is an archiver: it compresses several files into a single archive file. gzip is a simple compressor: each file is compressed separately. Both share the same compression and decompression code for the 'deflate' method. unzip can also decompress old zip archives (implode, shrink and reduce methods). gunzip can also decompress files created by compress and pack. zip 1.9 and gzip do not support compression methods other than deflation. (zip 1.0 supports shrink and implode). Better compression methods may be added in future versions of gzip. zip will always stick to absolute compatibility with pkzip, it is thus constrained by PKWare, which is a commercial company. The gzip header format is deliberately different from that of pkzip to avoid such a constraint. On Unix, gzip is mostly useful in combination with tar. GNU tar 1.11.2 and later has a -z option to invoke gzip automatically. "tar -z" compresses better than zip, since gzip can then take advantage of redundancy between distinct files. The drawback is that you must scan the whole tar.gz file in order to extract a single file near the end; unzip can directly seek to the end of the zip file. There is no overhead when you extract the whole archive anyway. If a member of a .zip archive is damaged, other files can still be recovered. If a .tar.gz file is damaged, files beyond the failure point cannot be recovered. (Future versions of gzip will have error recovery features.) gzip and gunzip are distributed as a single program. zip and unzip are, for historical reasons, two separate programs, although the authors of these two programs work closely together in the Info-ZIP team. zip and unzip are not associated with the GNU project. See http://info-zip.org/ for more about zip and unzip. For any copyright year range specified as YYYY-ZZZZ in this package note that the range specifies every single year in that closed interval. ======================================================================== Copyright (C) 1999, 2001-2002, 2006-2007, 2009-2022 Free Software Foundation, Inc. Copyright (C) 1992, 1993 Jean-loup Gailly Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.3 or any later version published by the Free Software Foundation; with no Invariant Sections, with no Front-Cover Texts, and with no Back-Cover Texts. A copy of the license is included in the ``GNU Free Documentation License'' file as part of this distribution. PK uZ!\��9��� �� ChangeLognu �[��� 2022-04-07 Jim Meyering <meyering@fb.com> version 1.12 * NEWS: Record release date. 2022-04-07 Paul Eggert <eggert@cs.ucla.edu> zgrep: fix "binary file matches" mislabeling Problem reported by Jim Avera (Bug#31280). This became more of an issue when GNU grep 3.5 (2020) started sending "binary file matches" diagnostics to stderr instead of to stdout. * tests/Makefile.am (TESTS): Add zgrep-binary. * tests/zgrep-binary: New test. * zgrep.in (args): New var, to accumulate args separately from grep command, so we can prepend args if need be. Most uses of 'grep' changed to use 'args' instead, or also. (with_filename): Set to 1 if more than one file and -h not given; this simplifies later code. (gnuish_grep): New var; evaluates to true if grep supports -H and --label options, as is true for GNU and FreeBSD grep. Append -H to 'grep' if outputting file names with GNUish grep, and use --label with GNUish grep unless reading from stdin, as that’s safer and more efficient than relabeling with 'sed'. maint: use C locale more often * gzexe.in, zdiff.in, zgrep.in: Run expr and sed in the C locale when it might help to avoid undefined behavior on non-GNU platforms. * sample/zfile, znew.in: Run in the C locale, for simplicity and to avoid undefined behavior on non-GNU platforms. gzexe: optimize out a grep * gzexe.in: Avoid an unnecessary invocation of ‘grep’, by using sed instead. Also, look only for at-most-3-digit numbers, for consistency with the rest of the script. gzip: mention when fixed bugs were introduced zgrep: port to POSIX sed * zgrep.in (res): When escaping the file name do not rely on GNU sed’s extension to POSIX with respect to s/.../\n/. Instead, use features that should also work with AIX and/or Solaris sed. This is simpler anyway, and would have prevented the recently-fixed bug. 2022-04-07 Jim Meyering <meyering@fb.com> zgrep: add NEWS and tests for this exploitable bug * tests/zgrep-abuse: New file, based on PoC by cleemy desu wayo. * tests/Makefile.am (TESTS): Add it. * NEWS: Mention the exploit. The bug appears to have been present since the beginning. 2022-04-06 Lasse Collin <lasse.collin@tukaani.org> zgrep: avoid exploit via multi-newline file names * zgrep.in: The issue with the old code is that with multiple newlines, the N-command will read the second line of input, then the s-commands will be skipped because it's not the end of the file yet, then a new sed cycle starts and the pattern space is printed and emptied. So only the last line or two get escaped. This patch makes sed read all lines into the pattern space and then do the escaping. This vulnerability was discovered by: cleemy desu wayo working with Trend Micro Zero Day Initiative 2022-04-06 Paul Eggert <eggert@cs.ucla.edu> gzip: fix i386 port * deflate.c (prev_length, match_start, max_chain_length, good_match): Make these extern instead of static, reverting part of the 2021-12-01T21:46:36Z!eggert@cs.ucla.edu patch. These symbols are used by i386 asm, and so must be extern at least for i386. maint: pacify GCC with recent x86 glibc * configure.ac (WERROR_CFLAGS): Disable -Wtype-limits, due to a false alarm on platforms where 'long' is 32 bits and time_t is 64-bit, such as recent glibc on x86. 2022-04-04 Paul Eggert <eggert@cs.ucla.edu> maint: update from Gnulib * bootstrap, tests/init.sh: Copy manually from current Gnulib. * lib/.gitignore, m4/.gitignore: Update as per current Gnulib. build: update gnulib submodule to latest build: support --program-prefix etc. Problem reported by Antonio Diaz Diaz via Dagobert Michelsen in: https://bugs.gnu.org/16876 * Makefile.am (.in): Substitute for 'gzip', 'zdiff', 'zgrep'. ($(GZIP_TRANSFORMED), $(ZDIFF_TRANSFORMED), $(ZGREP_TRANSFORMED)): New rules to build forwarding shell scripts, if needed. Add these files to BUILT_SOURCES and MOSTLY_CLEANFILES if needed. * configure.ac (GZIP_TRANSFORMED, ZDIFF_TRANSFORMED, ZGREP_TRANSFORMED): New substituted vars. (GZIP_IS_TRANSFORMED, ZDIFF_IS_TRANSFORMED, ZGREP_IS_TRANSFORMED): New Automake conditions. * gunzip.in, gzexe.in, zcat.in, zcmp.in, zdiff.in, zegrep.in: * zfgrep.in, zforce.in, zgrep.in, zless.in, zmore.in, znew.in: Quote possibly-transformed subcommand names. 2022-04-01 Paul Eggert <eggert@cs.ucla.edu> doc: improve doc for saved timestamps etc. Problem reported by Carpe Sébastien (Bug#24559). 2022-03-31 Paul Eggert <eggert@cs.ucla.edu> tests: port list-big test to macOS 12.1 * tests/list-big: Use dd, not truncate, to create a big file. zmore: don't assume benign PAGER in testing * tests/help-version (zmore_setup): Unset PAGER so that we test 'more', not whatever the tester has in its PAGER environment variable. This works around a problem I found when I ran 'PAGER=less make check' on a platform that lacked 'less'. zless: install only on platforms with 'less' Problem reported by Michael Felt (Bug#30029). * Makefile.am (ZLESS_MAN, ZLESS_PROG): New macros. (man_MANS, bin_SCRIPTS): Use them. * configure.ac: Check for 'less'. * tests/Makefile.am (ZLESS_PROG): New macro. (built_programs): Use it. 2022-03-29 Paul Eggert <eggert@cs.ucla.edu> doc: spelling fixes doc: omit @refill * doc/gzip.texi: Remove @refill to suppress warning ‘gzip.texi:562: warning: @refill is obsolete.’ from makeinfo 6.8. 2022-03-08 Paul Eggert <eggert@cs.ucla.edu> zdiff: fix another arg-handling bug Also allow args after file names. Problem reported by Lv Ying <https://bugs.gnu.org/54290#12>. 2022-03-07 Paul Eggert <eggert@cs.ucla.edu> zdiff: fix arg handling bug Problem reported by Lv Ying (Bug#54291). * zdiff.in (escape): Handle args like '-C 5'. 2022-02-10 Paul Eggert <eggert@cs.ucla.edu> doc: embolden SEE ALSO refs Problem reported by Helge Kreutzmann (Bug#53918). 2022-01-03 Jim Meyering <meyering@fb.com> maint: avoid new syntax-check failures * cfg.mk (local-checks-to-skip): Add sc_indent, to skip it. Otherwise, "make syntax-check" would fail. build: disable some expensive compiler warnings by default * configure.ac (gl_GCC_VERSION_IFELSE): Copy from coreutils. (gcc-warnings): Update from coreutils. maint: make update-copyright build: update gnulib to latest; also bootstrap and init.sh 2021-12-15 Paul Eggert <eggert@cs.ucla.edu> doc: document gzip -l change * NEWS, doc/gzip.texi (Invoking gzip), gzip.1 (gunzip): Document recent change. gzip: gzip -l now outputs accurate size gzip -l now decompresses to see how long the uncompressed file was. This fixes what is by far the most common bug report for gzip. It has a significant performance cost, but it’s worth it nowadays. * gzip.c (main): -l now sets 'test' too. All uses of 'test' changed. (treat_stdin, treat_file): Call do_list after decompressing, so that the length is known. (do_list): Omit arg IFD, since it is no longer needed. All callers changed. Get the CRC and uncompressed size from input_crc and bytes_out instead of using lseek. * tests/list-big: New test. * unzip.c (unzip): Set unzip_crc before returning. * util.c (write_buf): If 'test', output nothing. Update bytes_out with output byte count, regardless of 'test'. All callers changed. 2021-12-01 Paul Eggert <eggert@cs.ucla.edu> maint: reduce module coupling If a symbol is extern but never used by another module, make it static instead, or remove it if it is not used anywhere. * Makefile.am (gzip_SOURCES): Remove lzw.c. * bits.c (bi_buf, bi_valid) [!IBM_Z_DFLTCC]: * deflate.c (prev_length, match_start, max_chain_length) (good_match, lm_init): * gzip.c (verbose) [!DEBUG]: * unlzw.c (block_mode): Now static. * gzip.c (help, main, do_lzw): * revision.h: Simplify by assuming !LZW. * util.c (setcrc): Define only if IBM_Z_DFLTCC. (make_simple_name): Define only if NO_MULTIPLE_DOTS. 2021-10-30 Paul Eggert <eggert@cs.ucla.edu> maint: modernize README-{hacking,prereq} 2021-09-07 Paul Eggert <eggert@cs.ucla.edu> build: update gnulib submodule to latest 2021-09-03 Jim Meyering <meyering@fb.com> maint: post-release administrivia * NEWS: Add header line for next release. * .prev-version: Record previous version. * cfg.mk (old_NEWS_hash): Auto-update. version 1.11 * NEWS: Record release date. 2021-08-31 Paul Eggert <eggert@cs.ucla.edu> tests: port still better to NetBSD * tests/hufts: Ignore more lines starting with ‘+’ in stderr. tests: port better to NetBSD * tests/hufts, tests/zdiff: Ignore lines starting with ‘+’ in stderr. The NetBSD shell outputs them after set -x. tests: update help-version from coreutils This merges coreutils/tests/misc/help-version.sh into gzip/tests/help-version; they're now identical except for the initial init.sh configuration line. This should port better to NetBSD. maint: update .gitignore files * .gitignore, lib/.gitignore, m4/.gitignore: Bring up to date. Remove duplicates. Sort. tests: port two-files to IRIX 6.5 Problem reported by Nelson H. F. Beebe. * tests/two-files: Skip test if /dev/urandom is not readable. 2021-08-29 Jim Meyering <meyering@fb.com> build: update gnulib to latest maint: don't send announcements to TP coordinator gzip has no translatable strings, so don't include the translation project coordinator's email address in the announcement template. * cfg.mk (translation_project_): Define to be empty. 2021-08-19 Paul Eggert <eggert@cs.ucla.edu> gzip: clarify "other links" diagnostic * gzip.c (treat_file): Instead of saying "gzip: FOO has 1 other link -- unchanged", say "gzip: FOO has 1 other link -- file ignored". This is clearer when -k is also used (Bug#50097). 2021-08-08 Jim Meyering <meyering@fb.com> build: update gnulib to latest 2021-06-30 Jim Meyering <meyering@fb.com> build: update gnulib to latest 2021-04-11 Dmitry V. Levin <ldv@altlinux.org> bug#47715: [PATCH] gzip.c: use a more portable alignment The alignment of 8192 introduced by commit be0c5581e38332b2ffa8a4cf92076cfde02872b4 is not quite portable: eu-elflint --gnu-ld complains about the result gzip executable with the following diagnostics: section [25] '.bss' not fully contained in segment of program header entry 6 * gzip.c [__alignas_is_defined] (BUFFER_ALIGNED): Decrease alignment from 8192 back to 4096. 2021-03-07 Paul Eggert <eggert@cs.ucla.edu> maint: modernize .gitignore * lib/.gitignore, m4/.gitignore: Sort and modernize to current Gnulib. zgrep: fix option typo * zgrep.in: Fix typo in option processing that prevented operands like ‘binary-1’. gzip: port to SIGPIPE-less platforms * gzip.c (main): Don’t assume SIGPIPE is defined. 2021-02-26 Paul Eggert <eggert@cs.ucla.edu> * gzip.1: Quote better (Bug#46730). 2021-01-01 Jim Meyering <meyering@fb.com> maint: update all copyright year number ranges Run "make update-copyright" and then... * gnulib: Update to latest with copyright year adjusted. * tests/init.sh: Sync with gnulib to pick up copyright year. * bootstrap: Likewise. 2020-12-09 Jim Meyering <meyering@fb.com> maint: avoid another autoreconf warning * configure.ac: modernize AC_TRY_COMPILE invocation Use AC_COMPILE_IFELSE instead of AC_TRY_COMPILE. maint: remove uses of obsolete macros * configure.ac (AC_TYPE_SIGNAL, AC_ISC_POSIX, AC_HEADER_STDC): Remove. maint: avoid autoreconf warnings * configure.ac: Go back to using AC_PROG_CC rather than AC_PROG_CC_STDC, as the latter is obsolescent and the Autoconf bug involving the former has been fixed. build: update gnulib to latest build: require autoconf-2.64 * configure.ac: Require autoconf-2.64, up from 2.63, to align with gnulib. 2020-09-24 Ilya Leoshkevich <iii@linux.ibm.com> Add a test for compressing and decompressing two files It ensures that compression and decompression state of the first file does not affect the second file. Fix DFLTCC segfault when compressing or decompressing two files The value in total_in global variable from processing the first file affected processing of the second file. Fix by making total_in local. bug#43583: Fix building DFLTCC with clang clang does not support .machinemode, so put it under an #ifdef. Update .gitignore files On my s390x Fedora 31 machine there are a bunch of extra files copied to lib and m4 directories. Add them to .gitignore. 2020-08-31 Paul Eggert <eggert@cs.ucla.edu> doc: prefer bold to italics for command names 2020-05-29 Ilya Leoshkevich <iii@linux.ibm.com> IBM Z DFLTCC: add STREQ definition Commit 81c9fe4d0986 replaced !strcmp with STREQ in order to be compliant with the gnulib linter, however, gnulib does not provide STREQ! Quite a few gnulib .c files contain private definitions of STREQ. This patch just goes with the flow and does the same in dfltcc.c. 2020-03-21 Jim Meyering <meyering@fb.com> build: update gnulib to latest 2020-03-21 Bjarni Ingi Gislason <bjarniig@rhi.hi.is> doc: gzip.1: Change .BR to .B as there is only one argument * gzip.1: Use .B rather than .BR to avoid diagnostics from an upcoming version of groff: $ groff -b -e -mandoc -T utf8 -rF0 -t -w w -z <gzip.1>:327 (macro BR): only 1 argument, but more are expected <gzip.1>:459 (macro BR): only 1 argument, but more are expected This addresses https://bugs.gnu.org/39845 2020-03-14 Jim Meyering <meyering@fb.com> doc: man page improvements * gzip.1 (REPORTING BUGS): New section. (-t, --test): Add "then quit" at end of sentence to clarify what this option does. Reported by Dan Jacobson in https://bugs.gnu.org/839768. 2020-01-10 Ilya Leoshkevich <iii@linux.ibm.com> IBM Z DFLTCC: fix three data corruption issues SUSE maintainers have found an issue related to building zlib in 31-bit mode, which also applies to gzip: STFLE instruction can be used only in z/Architecture mode: https://build.opensuse.org/request/show/708284 -- I have integrated the fix into this patch. * configure.ac (AC_CHECK_HEADERS_ONCE): Add feature detection for sys/sdt.h probes. * dfltcc.c (dfltcc_cc): Minor formatting improvements. (HB_BITS): Remove. (HB_SIZE): Likewise. (is_dfltcc_enabled): Fix buffer overrun on newer models and incomplete initialization on older models. Add machine mode hint. (dfltcc): Use sys/sdt.h feature detection. (bi_load): New function. (bi_close_block): Use bi_load. (close_stream): Fix overwriting the End-of-block Symbol. (dfltcc_deflate): Fix losing partial byte on flush. Fix setting Block-Continuation Flag when DFLTCC-CMPR outputs 0 bits and requests a retry. Minor formatting improvements. (dfltcc_inflate): Retry immediately if requested. Print the hardware error code and flush the output buffer on error. Minor formatting improvements. * tests/hufts: Ignore the hardware error code. 2020-01-05 Ilya Leoshkevich <iii@linux.ibm.com> Document IBM Z environment variables IBM Z patch (7a6f9c9) introduced 6 environment variables, which are used to tune the compression and decompression with the DEFLATE COMPRESSION CALL instruction. This patch adds texinfo documentation for all of them. * doc/gzip.texi (Environment): Add DFLTCC* environment variables. 2020-01-01 Jim Meyering <meyering@fb.com> maint: update all copyright year number ranges Run "make update-copyright" and then... * gnulib: Update to latest with copyright year adjusted. * tests/init.sh: Sync with gnulib to pick up copyright year. * bootstrap: Likewise. maint: change calloc module to calloc-gnu * bootstrap.conf (gnulib_modules): Use calloc-gnu module, not the deprecated "calloc". 2019-09-07 Jim Meyering <meyering@fb.com> maint: placate strcmp-vs-STREQ syntax check rule * dfltcc.c (is_dfltcc_enabled): Use STREQ (env, "0") in place of "!strcmp (env, "0"). 2019-04-02 Paul Eggert <eggert@cs.ucla.edu> Improve IBM Z patch Most of this is minor changes to use GNU style and C99 constructs. * NEWS: Mention IBM Z. * bootstrap.conf (gnulib_modules): Add stdalign. * dfltcc.c: Include stdalign.h, stdbool.h. (union aligned_dfltcc_qaf_param, union aligned_dfltcc_param_v0): New types, used for C11-style alignment. All uses changed. (init_param): * gzip.c (BUFFER_ALIGNED): New macro. (inbuf, outbuf, window): Use it, so buffers are aligned everywhere. * gzip.h (INBUFSIZ, OUTBUFSIZE): Use big buffers everywhere, unless SMALL_MEM. * zip.c (SLOW, FAST): Now enums since they need not be macros: 2019-04-02 Ilya Leoshkevich <iii@linux.ibm.com> bug#34918: [PATCH] Add support for IBM Z hardware-accelerated deflate Future versions of IBM Z mainframes will provide DFLTCC instruction, which implements deflate algorithm in hardware with estimated compression and decompression performance orders of magnitude faster than the current gzip and ratio comparable with that of level 1. This patch adds DFLTCC support to gzip. In order to enable it, the following build commands should be used: $ ./configure --enable-dfltcc $ make When built like this, gzip would compress in hardware on level 1, and in software on all other levels. Decompression will always happen in hardware. In order to enable DFLTCC compression for levels 1-6 (i.e. to make it used by default) one could either add -DDFLTCC_LEVEL_MASK=0x7e at compile time, or set the environment variable DFLTCC_LEVEL_MASK to 0x7e at run time. Two DFLTCC compression calls produce the same results only when they both are made on machines of the same generation, and when the respective buffers have the same offset relative to the start of the page. Therefore care should be taken when using hardware compression when reproducible results are desired. One such use case - reproducible software builds - is handled explicitly: when SOURCE_DATE_EPOCH environment variable is set, the hardware compression is disabled. This patch tries to add DFLTCC support in a least intrusive way. All SystemZ-specific code was placed into a separate file, but unfortunately there is still a noticeable amount of changes in the main gzip code. Below is the summary of those changes. DFLTCC will refuse to write an End-of-block Symbol if there is no input data, thus in some cases it is necessary to do this manually. In order to achieve this, bi_buf and bi_valid were promoted to extern variables. lm_init() function moves the input buffer into the window, which is not desirable for DFLTCC. Therefore, its invocation was moved to software-only deflate(). In addition to initializing the window, this function also used to convert compression level to flags, which is still needed for DFLTCC. This responsibility was handed off to zip() function. To achieve maximum performance with DFLTCC, inbuf and outbuf must be 256k big and page-aligned. Additionally, for DFLTCC to work at all, the window must be page-aligned. In addition to compression, DFLTCC computes CRC-32 checksum, therefore, whenever it's used, software checksumming needs to be suppressed and its results replaced by those of dfltcc. This is achieved by introducing the new getcrc() and setcrc() functions. Unlike the current software implementation, DFLTCC decompresses data into the output buffer, and not the window. Therefore, just like flushing the window, flushing the output buffer must honor the test flag. Finally, znew-k test assumes that "znew -K" would not convert the test .Z file to .gz, which is not the case with DFLTCC. Since this is not the main point of the test, this assumption was relaxed. 2019-03-26 Paul Eggert <eggert@cs.ucla.edu> gzexe: fix count of lines to skip Problem reported by Jakub Martisko (Bug#35002). * gzexe.in (skip): Bump from 44 to 49. 2019-01-20 Jim Meyering <meyering@fb.com> build: ensure no VLA is used Cause developer builds to fail for any use of a VLA. VLAs (variable length arrays) limit portability. * configure.ac (nw): Remove -Wvla from the list of disabled warnings, thus enabling the warning when configured with --enable-gcc-warnings. (GNULIB_NO_VLA) Define, disabling use of VLAs in gnulib. This commit is functionally equivalent to coreutils' v8.30-44-gd26dece5d. build: update gnulib to latest 2019-01-01 Jim Meyering <meyering@fb.com> maint: update all copyright dates via "make update-copyright" * gnulib: Also update submodule for its copyright updates. 2018-12-29 Jim Meyering <meyering@fb.com> maint: post-release administrivia * NEWS: Add header line for next release. * .prev-version: Record previous version. * cfg.mk (old_NEWS_hash): Auto-update. version 1.10 * NEWS: Record release date. 2018-12-23 Paul Eggert <eggert@cs.ucla.edu> build: enable -Wunreachable-code * configure.ac (nw): Remove -Wunreachable-code from the list of disabled warnings, now that all offending statements have been removed. maint: remove unreachable code Problem reported by Oracle Developer Studio 12.6. In the old days we needed a return statement at the end of the gzip main function to pacify traditional 'lint', but lint checkers nowadays are smarter. * gzip.c (main): * zip.c (file_read): Remove unreachable code. 2018-12-23 Jim Meyering <meyering@fb.com> maint: use a slightly cleaner expression * gzip.c (do_list): Simplify an expression: - int positive_off_t_width = INT_BUFSIZE_BOUND (off_t) - 2; + int positive_off_t_width = INT_STRLEN_BOUND (off_t) - 1; 2018-12-22 Jim Meyering <meyering@fb.com> build: avoid build failure with --enable-gcc-warnings and latest gcc * gzip.c (do_list): There was a loop to compute the maximum width of a decimal positive off_t value. Replace it with assignment to a constant. Noticed because gcc 9.0.0 20181219 warned about its use as a printf format-width value. (OFF_T_MAX): Remove now-unused definition. 2018-12-21 Jim Meyering <meyering@fb.com> maint: improve a comment * trees.c (flush_block): Fix grammar/spelling in a comment. maint: update gnulib to latest; also update bootstrap and init.sh build: make the autoconf-2.63 requirement explicit * configure.ac: AC_PREREQ: Require 2.63, not 2.59. Autoconf-2.63 has been required for some time via gnulib. This merely makes it explicit. 2018-11-30 Paul Eggert <eggert@cs.ucla.edu> gzip: fix use of uninitialized memory Problem reported by Hanno Böck (Bug#33501). * NEWS: Mention this. * inflate.c (inflate_dynamic): Return if code is invalid. Fix by Mark Adler. * tests/hufts: Add test case for the bug. 2018-08-19 Paul Eggert <eggert@cs.ucla.edu> * gzip.c (remove_output_file): Fix typo. gzip: fix bug in signal-handling fix Problem reported by Johannes Przybilla (Bug#32375#26). * gzip.c (volatile_strcpy): Source is now pointer-to-volatile too. (remove_output_file): Copy remove_ofname to a private nonvolatile copy so that it can be passed to xunlink safely. 2018-08-06 Paul Eggert <eggert@cs.ucla.edu> Fix some theoretical races in signal handling Problem reported by Johannes Przybilla (Bug#32375). * NEWS: Mention this. * bootstrap.conf (gnulib_modules): Add sigaction. * gzip.c (SA_NOCLDSTOP, sigprocmask, sigset_t) (siginterrupt) [!SA_NOCLDSTOP]: Remove; Gnulib not supplies these. (remove_ofname): New var. (volatile_strcpy): New function. (create_outfile): Use it. (install_signal_handlers, abort_gzip_signal): Assume sigaction. (remove_output_file): New arg SIGNALS_ALREADY_BLOCKED. All uses changed. Avoid unnecessary (and racy) call to sigprocmask if this new arg is set. (abort_gzip_signal): Assume C89 or better for signal handler type. * gzip.h (RETSIGTYPE): Remove. * lib/.gitignore, m4/.gitignore: Add files brought in by Gnulib sigaction module. Sort. 2018-08-04 Paul Eggert <eggert@cs.ucla.edu> gzip: port better to mingw again Problem reported by Bdale Garbee (Bug#32305#8). * gzip.c (do_chown): Use HAVE_FCHOWN || HAVE_CHOWN, which is configured, instead of DO_CHOWN, which is not. 2018-08-02 Paul Eggert <eggert@cs.ucla.edu> gzip: make the output more reproducible Problem reported by Bernhard M. Wiedemann (Bug#32342). * NEWS: Mention this. * doc/gzip.texi (Overview, Invoking gzip): Document this. * gzip.c (get_input_size_and_time): New function, which implements the change. (treat_stdin, treat_file): Use it. * tests/reproducible: New test. * tests/Makefile.am (TESTS): Add it. 2018-07-29 Paul Eggert <eggert@cs.ucla.edu> gzip: port better to mingw Problem reported by Bdale Garbee for Debian * gzip.c (do_chown): Don't assume uid_t and gid_t. 2018-07-01 Jim Meyering <meyering@fb.com> maint: update gnulib to latest; also update bootstrap and init.sh 2018-06-30 Jim Meyering <meyering@fb.com> build: remove -Wformat-truncation=2 to avoid avoid false-positive * configure.ac (GNULIB_WARN_CFLAGS): Add -Wformat-truncation=2, to disable it when building gnulib with --enable-gcc-warnings. This avoids what looks like a false positive from GCC 9: strerror_r.c: In function 'rpl_strerror_r': strerror_r.c:453:35: error: 'Unknown error ' directive output \ truncated writing 14 bytes into a region of size 2 \ [-Werror=format-truncation=] snprintf (buf, buflen, "Unknown error %d", errnum); ~~^~~~~~~~~~~~ In file included from /usr/include/stdio.h:862, from ./stdio.h:43, from strerror_r.c:29: /usr/include/bits/stdio2.h:64:10: note: '__builtin___snprintf_chk' \ output between 16 and 26 bytes into a destination of size 2 return __builtin___snprintf_chk (__s, __n, __USE_FORTIFY_LEVEL - 1, 2018-01-15 Paul Eggert <eggert@cs.ucla.edu> misc: update --version copyright * gunzip.in, gzexe.in, gzip.c, zcat.in, zdiff.in, zforce.in, zgrep.in: * zless.in, zmore.in, znew.in: Update copyright year in --version output to 2018. This part of the year-number update isn’t automated yet. 2018-01-07 Jim Meyering <meyering@fb.com> maint: post-release administrivia * NEWS: Add header line for next release. * .prev-version: Record previous version. * cfg.mk (old_NEWS_hash): Auto-update. version 1.9 * NEWS: Record release date. 2018-01-06 Paul Eggert <eggert@cs.ucla.edu> gzexe: port to macOS mktemp Problem reported by Jeffrey Walton (Bug#30000). * gzexe.in, zdiff.in, zgrep.in: Don’t assume that mktemp works when given no arguments, as this is not true for macOS. Instead, use a syntax that should work with coreutils, NetBSD, and macOS. While we’re in the neighborhood, be more consistent about how program names are used in temporary file names. Also, watch out for TMPDIR values that are not absolute file names, since they can cause problems (e.g., leading "-"). 2018-01-03 Jim Meyering <meyering@fb.com> maint: update gnulib and copyright dates for 2018 * gnulib: Update to latest. * bootstrap: Update from gnulib. * all files: Run "make update-copyright". 2017-12-16 Jim Meyering <meyering@fb.com> build: update gnulib to latest 2017-11-24 Paul Eggert <eggert@cs.ucla.edu> maint: zforce and zmore exit status cleanup Problem reported by Nelson H. F. Beebe. * zforce.in, zmore.in: On failure, exit with status 1 instead of with whatever failing status that printf or mv exited with. 2017-11-23 Paul Eggert <eggert@cs.ucla.edu> gzexe: ensure file always exists * gzexe.in: When in a filesystem that does not support symlinks, use rm+cp rather than mv to make backups, so that the argument file always exists. 2017-11-23 Jim Meyering <meyering@fb.com> build: update gnulib to latest 2017-11-16 Jim Meyering <meyering@fb.com> gzexe: work even without the ability to make a hard link * gzexe.in: When ln -f fails to create a "~"-style backup, fall back to using mv -f. Reported by Bruno Haible in http://debbugs.gnu.org/29266 2017-11-15 Jim Meyering <meyering@fb.com> build: make each generated script unwritable * Makefile.am (.in): Ensure that each generated script is unwritable. This makes it less likely that someone (even me) will mistakenly modify one of those generated files. 2017-11-13 Jim Meyering <meyering@fb.com> zless, znew: exit 1 upon --help or --version write failure * zless.in: Exit 1 upon --help or --version write error. * znew.in: Likewise. 2017-11-12 Paul Eggert <eggert@cs.ucla.edu> maint: script diagnostics status cleanup Problem reported by Bruno Haible (Bug#29266#20). * NEWS: Mention this. * gunzip.in, gzexe.in, zcat.in, zcmp.in, zdiff.in, zforce.in: * zgrep.in, zless.in, zmore.in, znew.in: Use printf instead of echo if the argument might contain ‘\’, at least in theory. Don’t assume printf exits with status 1 on failure; it might be some other positive status. * gzexe.in: Use printf consistently instead of echo, and proscribe it instead of echo. tests: don’t be so strict about timestamps * tests/timestamp: We’ve had many false alarms about timestamps that are not gzip problems, but instead are problems with ‘touch’. Attempt to work around them by not trusting ‘touch’ so much. Problems and parts of solutions proposed by Bruno Haible. 2017-11-10 Paul Eggert <eggert@cs.ucla.edu> build: update gnulib submodule to latest 2017-11-09 Jim Meyering <meyering@fb.com> gnulib: update to latest maint: use noreturn, not ATTRIBUTE_NORETURN Use gnulib's stdnoreturn module so we can include <stdnoreturn.h> and the "noreturn" helper macro, thus replacing the definition and uses of ATTRIBUTE_NORETURN. * bootstrap.conf (gnulib_modules): Add stdnoreturn. * gzip.h (ATTRIBUTE_NORETURN): Remove definition. Include stdnoreturn.h and use "noreturn" for each ATTRIBUTE_NORETURN-adorned function declaration. * gzip.c (do_exit, try_help): Use "noreturn". tests: unpack-invalid: correct and clean up a test * tests/unpack-invalid: There was a logic error that would have caused this test to ignore a failure if first iteration of the loop set fail=1 and the second one reset it to 0. Also, use "returns_ 1 ...", to require an exit status of 1. 2017-11-07 Paul Eggert <eggert@cs.ucla.edu> gzip: diagnose out-of-range MTIME This seems to be the problem reported by Bruno Haible for GNU/Hurd i386 with touch 8.26 and glibc 2.24 (Bug#29033#20). * NEWS: Document this. * gzip.c (get_method): If MTIME is out of range for this platform, warn and substitute the nearest in-range value, instead of silently ignoring it. (do_list): Remove no-longer-needed test for unknown time stamp. 2017-11-06 Paul Eggert <eggert@cs.ucla.edu> misc: diagnose year-2038 configuration problems * bootstrap.conf (gnulib_modules): Add year2038. * m4/.gitignore: Add year2038.m4[ maint: remove IMPORT_FROM_GETTEXT * bootstrap.conf (IMPORT_FROM_GETTEXT): Remove. This is a relic from older Gnulib, and has no effect now. 2017-10-29 Jim Meyering <meyering@fb.com> tests/unpack-valid: port to printf that do not grok hex Many versions of printf do not handle hexadecimal in a format string, so this test would fail. * tests/init.cfg (hex_printf_): Copied from grep's tests/init.cfg. * tests/unpack-valid: Use hex_printf_. Reported by Bruno Haible in https://bugs.gnu.org/29033#26 gnulib: update to latest; also update tests/init.sh from gnulib gzip: fix bug with any upper case custom ('-S'-specified) suffix Any user-specified suffix with an upper case letter would fail to match desired file. * gzip.c (get_suffix): First, arrange to have only one return point rather than two. Put a lower-cased (just-malloc'd) copy of z_suffix in the suffix vector, and free it before returning. * tests/upper-suffix: New file. * tests/Makefile.am (TESTS): Add it. * NEWS: Mention it. Reported by meo@xenialab.it in https://bugs.gnu.org/29006 2017-10-16 Paul Eggert <eggert@cs.ucla.edu> gzip: fix bug in unpack EOB check Problem reported by Vidar Holen (Bug#28861). * NEWS: Mention fix. * tests/unpack-valid: New test. * tests/Makefile.am (TESTS): Add it. * unpack.c (build_tree): Report an error if Huffman tree has too few leaves. * unpack.c (unpack): Fix check for EOB. Remove now-unnecessary check for code out of range. 2017-09-19 Jim Meyering <meyering@fb.com> maint: fix "make syntax-check": remove useless HAVE_UTIME_H definitions * tailor.h: Don't define HAVE_UTIME_H. maint: avoid "make syntax-check" failure due to old-NEWS modification * cfg.mk (old_NEWS_hash): Update, to reflect recent NEWS correction. 2017-09-19 Paul Eggert <eggert@cs.ucla.edu> gzexe: improve usage diagnostic * gzexe.in (usage): Reword for clarity (Bug#28514). misc: update --version copyright * gunzip.in, gzexe.in, gzip.c, zcat.in, zdiff.in, zforce.in, zgrep.in: * zless.in, zmore.in, znew.in: Update copyright year in --version output to 2017. maint: prefer HTTPS to HTTP, FTP in URLs maint: copy bootstrap from Gnulib maint: port to GCC 7.2 * configure.ac (WERROR_CFLAGS): Avoid -Wduplicated-branches. * tailor.h (FALLTHROUGH): New macro, taken from Emacs. * gzip.c (main): Use it. maint: update .gitignore for recent Gnulib build: update gnulib submodule to latest 2017-05-07 Jim Meyering <meyering@fb.com> maint: also distribute a zip-compressed tarball * configure.ac (AM_INIT_AUTOMAKE): Add dist-zip, for those lacking gzip, 7zip, etc. Suggested by Karl Berry in https://bugs.gnu.org/25538. 2017-03-13 Paul Eggert <eggert@cs.ucla.edu> gzip: port zdiff, zless to Busybox Problem reported by Denys Zagorui (Bug#26088). * tests/zdiff: Check that diff uses POSIX-format output. * zless.in (less_version): Don't exit merely because 'less -V' fails; instead, assume 'less' is compatible with an old version of the original 'less'. Busybox 'less -V' fails, but apparently its 'less' works anyway somehow. 2017-02-06 Jim Meyering <meyering@fb.com> tests: avoid failure when running with no tty * tests/help-version (zcat_setup): Export TERM=dumb, to avoid zless malfunction. Reported by Assaf Gordon in https://bugs.gnu.org/25636#8 gnulib: update to latest; and tests/init.sh and bootstrap maint: change "time stamp" to "timestamp" globally This avoids a new syntax-check failure. * ChangeLog-2007: Perform that change. * NEWS: Likewise. * algorithm.doc: Likewise. * doc/gzip.texi: Likewise. * gunzip.in: Likewise. * gzip.1: Likewise. * gzip.c: Likewise. * gzip.h: Likewise. * m4/.gitignore: Likewise. * sample/ztouch: Likewise. * tests/timestamp: Likewise. * unzip.c: Likewise. * zip.c: Likewise. * znew.1: Likewise. * cfg.mk: Update the old news hash accordingly. 2017-01-01 Jim Meyering <meyering@fb.com> maint: tweak a distcheck rule * dist-check.mk (my-distcheck): Don't use --disable-nls. That option is now unrecognized. maint: update gnulib and copyright dates for 2017 * gnulib: Update to latest. * all files: Run "make update-copyright". 2016-11-08 Jim Meyering <meyering@fb.com> maint: use "returns_" rather than explicit comparison with "$?" * tests/zdiff: Use "returns_ 1" rather than testing $? = 1. * tests/hufts: Likewise. * tests/timestamp: Likewise, but s/1/2/. 2016-11-04 Paul Eggert <eggert@cs.ucla.edu> gzip: minor time stamp cleanups * NEWS: Document this. * gzip.c (get_method): Do not warn about MTIME out of range. This should avoid useless chatter on hosts with 32-bit time_t after the year 2038 (!). (do_list): Do not pass junk time stamp to localtime. (copy_stat): Do not report "time stamp restored" if restoration fails. gzip: --no-time cleanup Problem reported by Jim Meyering (Bug#24826). * gzip.c (longopts): Remove non-working no-time entry. (help) [UNDOCUMENTED]: Don't document it. gzip --no-name: avoid spurious warning Problem reported by Jim Meyering (Bug#24826). * tests/timestamp: Add a test from Jim Meyering to exercise the fix * zip.c (zip): Treat unknown time stamps as 0. 2016-10-24 Jim Meyering <meyering@fb.com> maint: update .gitignore files to ignore more generated files 2016-10-02 Jim Meyering <meyering@fb.com> maint: avoid unwarranted "make syntax-check" failure * tests/timestamp: Reorder "rm" arguments so the doubled-word syntax-check rule does not detect a false positive "in in" here. gnulib: update to latest 2016-09-07 Paul Eggert <eggert@cs.ucla.edu> * doc/gzip.texi: Fix off-by-one timestamp. 2016-09-06 Paul Eggert <eggert@cs.ucla.edu> gzip: fix some Y2038 etc. bugs * NEWS: Document this. * gzip.c (get_method): Warn about out-of-range MTIME, and ignore it instead of relying on possibly-undefined behavior. * tests/Makefile.am (TESTS): Add timestamp. * tests/timestamp: New test. * zip.c (zip): Warn about out-of-range file time stamp. 2016-08-29 Jim Meyering <meyering@fb.com> maint: fix gzip-specific syntax-check rule * cfg.mk (sc_gzip_copyright_check): This rule had two problems. It was failing erroneously (the copyright date in gzip.c is fine), yet it was complaining. The first problem is that the rule's diagnostic mentioned the wrong file: lib/version-etc.c, rather than ./gzip.c. The second problem is that it specified this file name via "in_files" rather than the "in_vc_files" variable. 2016-06-12 Paul Eggert <eggert@penguin.cs.ucla.edu> gzip: fix port to Atari by not defining ASMV Problem reported by Helmut Karlowski in: http://bugs.gnu.org/23751 * tailor.h (ASMV) [ATARI || atarist]: Do not define. 2016-06-12 Paul Eggert <eggert@cs.ucla.edu> gzip: drop mentions of Amiga, VMS These platforms were not supported anyway, and their code was suffering from bitrot. This patch may also fix some file name glitches on MS-Windowsish platforms. * bootstrap.conf (gnulib_modules): Add dosname. * gzip.c: Include dosname.h. (shorten_name, treat_dir): Use last_component rather than looking at path separators by hand. * tailor.h: Remove sections on porting to VMS and to Amiga, since dosname.h doesn't support these platforms anyway. (PATH_SEP2, PATH_SEP3, STDC_HEADERS, SUFFIX_SEP, RECORD_IO) (HAVE_CHOWN, HAVE_LSTAT, HAVE_SYS_DIR_H, direct): Remove. All uses removed. Many uses replaced by calls to ISSLASH and/or last_component. 2016-04-29 Jim Meyering <meyering@fb.com> maint: arrange for better URLs in generated announcement message * cfg.mk (url_dir_list): Define. I had been correcting the generated URLs by hand, just before the announcement. This is better. 2016-04-26 Jim Meyering <meyering@fb.com> maint: post-release administrivia * NEWS: Add header line for next release. * .prev-version: Record previous version. * cfg.mk (old_NEWS_hash): Auto-update. version 1.8 * NEWS: Record release date. gnulib: update to latest 2016-04-19 Paul Eggert <eggert@cs.ucla.edu> gzip: simplify by closing ourselves This simplifies the previous fix, by avoiding the use of the closein module. That module was problematic, as gzip normally does not use stdio for output and never uses it for input. Also, it is a heavyweight module, as it drags many files into lib (c-ctype.c, c-ctype.h, closein.c, closein.h, closeout.c, closeout.h, close-stream.c, close-stream.h, config.charset, c-strcasecmp.c, c-strcaseeq.h, c-strcase.h, c-strncasecmp.c, fpending.c, fpending.h, freadahead.c, freadahead.h, localcharset.c, localcharset.h, mbrtowc.c, mbsinit.c, quotearg.c, quotearg.h, quote.h, ref-add.sin, ref-del.sin, streq.h, wctype-h.c, wctype.in.h) and into m4 (closein.m4, closeout.m4, close-stream.m4, codeset.m4, configmake.m4, fpending.m4, freadahead.m4, glibc21.m4, localcharset.m4, locale-fr.m4, locale-ja.m4, locale-zh.m4, mbrtowc.m4, mbsinit.m4, mbstate_t.m4, quotearg.m4, wctype_h.m4), and these files are thus no longer needed. * bootstrap.conf (gnulib_modules): Remove closein. * gzip.c: Don't include closein.h. (stdin_was_read): New static var. (main): Don't use close_stdin. Invoke finish_out to exit after outputting via stdio's stdout. Close stdin after reading it. Restore previous way of closing stdout. (treat_stdin): Record that stdin was read. (finish_out): New function. gzip: fix bug with -l output to pipes Problem reported by Christian Franke via Eric Blake in: http://bugs.gnu.org/23314 * NEWS: Mention this. * gzip.c (main): Do not close stdout twice when given -l. Instead, -l now just fflushes stdout, so that fdatasync can synchronize it if --synchronize is also specified. * tests/list: New test case. * tests/Makefile.am (TESTS): Add it. 2016-03-28 Paul Eggert <eggert@cs.ucla.edu> Port to Oracle Solaris Studio 12.4 Problem reported by Kiyoshi KANAZAWA in: http://bugs.gnu.org/23133 * NEWS: Document this. * configure.ac (ASMV): Do not define if NO_ASM is anywhere in DEFS; it doesn't need to be surrounded by white space. * lib/match.c: Do not use x86 version if __x86_64__ is defined. 2016-03-27 Jim Meyering <meyering@fb.com> maint: post-release administrivia * NEWS: Add header line for next release. * .prev-version: Record previous version. * cfg.mk (old_NEWS_hash): Auto-update. version 1.7 * NEWS: Record release date. 2016-03-26 Paul Eggert <eggert@cs.ucla.edu> Port to NetBSD 7.0 Problem reported by Assaf Gordon in: http://bugs.gnu.org/23107#13 * gzexe.in, zdiff.in, zgrep.in: Don't rely on mktemp -t, as it has a different meaning in NetBSD. * tests/init.sh: Sync from Gnulib. Port to Alpine Linux which uses Busybox * Makefile.am (check-local): Use plain diff rather than 2016-03-24 Jim Meyering <meyering@fb.com> gzip: also honor GZIP=--rsyncable * gzip.c (main): Also accept --rsyncable when it is specified via the GZIP environment variable. I noticed this when gzip's "make dist" failed because maint.mk detected that gzip now honors --rsyncable, yet when it set GZIP_ENV to include that, and that propagated via automake-generated code to the GZIP setting used in the "make dist" rule, there, it was not honored, and caused "make dist" to fail. 2016-03-21 Paul Eggert <eggert@cs.ucla.edu> Fix typo in previous patch Port to Solaris 11 /bin/sh * m4/shell.m4 (AC_PROG_SHELL): Reject Solaris 11 /bin/sh. A problem was reported by Nelson H. F. Beebe for OpenIndiana. I reproduced a problem with different symptoms on Solaris 11. Switching to Bash fixed it, and I hope this fixes it for OpenIndiana too, since both problems appear to be shell-related. 2016-03-18 Paul Eggert <eggert@cs.ucla.edu> zgrep: with -f SPECIAL, read SPECIAL just once Problem reported by Fulvio Scapin in: http://bugs.gnu.org/22945 * NEWS: Document this. * tests/zgrep-f: Add a test. Adjust a test to cover the case of more than one line in -f's input. * zgrep.in (with_filename): With -f FILE, if FILE is stdin or not a regular file, copy it into a temporary and use the temporary. 2016-03-15 Paul Eggert <eggert@cs.ucla.edu> gzip: port to AIX 7.1 + xlc V12.1 * inflate.c, unlzw.c, util.c: Include tailor.h after including any system include file that might in turn include signal.h for the first time, so that SIGPIPE is not #defined to 0 prematurely, which clashes with signal.h's SIGPIPE. 2016-03-15 Jim Meyering <meyering@fb.com> gnulib: update to latest maint: don't ignore gitlog-to-changelog failure * Makefile.am (gen-ChangeLog): Don't ignore failure of gitlog-to-changelog. This syncs to coreutils' copy of this rule. 2016-03-06 Paul Eggert <eggert@cs.ucla.edu> gzip: pacify clang * gzip.c (do_list): Use 2D array of char for month abbreviations, as this is clearer anyway, and it pacifies Clang. Problem reported by Assaf Gordon in: http://bugs.gnu.org/22900#40 2016-03-06 Jim Meyering <meyering@fb.com> tests: port to systems for which ":" is not the PATH separator * Makefile.am (new_path): New variable. (check-local): Use $(PATH_SEPARATOR) rather than a literal ":", to avoid "make syntax-check" failure. 2016-03-06 Paul Eggert <eggert@cs.ucla.edu> doc: minor --rsyncable doc fixes * doc/gzip.texi (Sample): Mention --rsyncable. * gzip.c (help): Sort and do not capitalize the new --rsyncable help string. gzip: minor zgrep cleanup * zgrep.in: Simplify previous change. gzip: port zgrep to Solaris 11.2 Problem reported by Assaf Gordon in: http://bugs.gnu.org/22900#11 * zgrep.in: Port to Solaris 11.2 /bin/sh (ksh 93u 2011-02-08), where $? is 256+SIG when a process was killed with signal SIG, and where 'exit 257' is equivalent to 'exit 1'. Apparently some other sh implementations use 256+128+SIG. So, instead of using plain 'exit $?', use the equivalent of 'exit ((128 * (128 <= $?)) + $? % 128)' within the script, and use the equivalent of 'kill -$($? % 128)' at the top level if the exit status is 128 or more. gzip: remove --__bindir * NEWS: Document this. * gzexe.in, gunzip.in, zcat.in, zcmp.in, zdiff.in, zegrep.in: * zfgrep.in, zforce.in, zgrep.in, zless.in, zmore.in, znew.in: Remove support for undocumented --__bindir option. Callers can set PATH instead; that's less error-prone. This fixes some 'make check' failures on my Solaris 11 box, which occurred because the test scripts were mistakenly testing the installed gzip rather than the gzip in the working directory. * Makefile.am (.in): Don't replace bindir. (check-local): Set PATH instead of using --__bindir. * tests/help-version (gunzip_setuphelp, gzexe_setuphelp) (zcat_setuphelp, zcmp_setuphelp, zdiff_setuphelp) (zegrep_setuphelp, zfgrep_setuphelp, zforce_setuphelp) (zgrep_setuphelp, zless_setuphelp, zmore_setuphelp) (znew_setuphelp): Remove. All uses removed. (lbracket_setup): Default args to empty. 2016-03-04 Jim Meyering <meyering@fb.com> tests: fix "make check" failure on AIX 7.1 * tests/Makefile.am (TESTS_ENVIRONMENT): Modernize: remove unused shell_or_perl_ function, and use an export_with_values function as grep does, to remove a lot of duplication. Reported by Assaf Gordon in http://debbugs.gnu.org/22900 2016-03-02 Rusty Russell <rusty@rustcorp.com.au> gzip: support the --rsyncable option * deflate.c: Include verify.h. (RSYNC_WIN, RSYNC_SUM_MATCH): Define. (rsync_sum, rsync_chunk_end): Declare file-scoped globals. (lm_init): Initialize globals. (fill_window): Update rsync_chunk_end. (rsync_roll): New function. (RSYNC_ROLL): New macro. (FLUSH_BLOCK): Update for new "pad" parameter. (deflate_fast): Use RSYNC_ROLL and flush/pad. (deflate): Likewise. * trees.c (flush_block): Add "pad" parameter. * gzip.c (rsync): New global. (RSYNCABLE_OPTION, longopts, help): Add the option. (main): Set the new global. * gzip.h (rsync): Declare new global. (flush_block): Update prototype. * doc/gzip.texi: Document it. * gzip.1: Likewise. * bootstrap.conf: Use verify module. * NEWS (New feature): Mention it. * Makefile.am (check-local): Add tests and use AM_V__* command- hiding opions. Reported against Debian here: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=118118 2016-02-28 Jim Meyering <meyering@fb.com> maint: dist-check.mk: remove .deps dirs before comparing "make distcheck" with automake-from-trunk would fail like this: ... Only in /gz/tests/torture/gzip/test/gzip-1.6.42-9d47.old: .deps Only in /gz/tests/torture/gzip/test/gzip-1.6.42-9d47.old/lib: .deps Only in /gz/tests/torture/gzip/test/gzip-1.6.42-9d47.old/lib/glthread: .deps * dist-check.mk (my-distcheck): Remove all .deps directories before comparing the two hierarchies. 2016-02-28 Paul Eggert <eggert@cs.ucla.edu> misc: update --version copyright * gunzip.in, gzexe.in, zcat.in, zdiff.in, zforce.in, zgrep.in: * zless.in, zmore.in, znew.in: Update copyright year in --version output to 2016. gzip: new option --synchronous This follows up on the earlier patch to avoid data loss near the system crashes. It makes the new behavior optional, with the default off. See: http://bugs.gnu.org/22768 * NEWS, doc/gzip.texi (Sample, Invoking gzip), gunzip.in (usage): * gzip.1, zcat.in (usage): Document this. * gzip.c (synchronous): New static var. (SYNCHRONOUS_OPTION): New constant. (longopts, help, main, treat_file): Add support for --synchronous. gzip: use constants, not fileno * gzip.c (main, treat_stdin, treat_file, get_method) (check_ofname): Prefer STDIN_FILENO to fileno (stdin), and similarly for STDOUT_FILENO. gzip: fdatasync output dir before unlinking This follows up on the earlier patch to avoid data loss near the system crashes. See: http://bugs.gnu.org/22768 * bootstrap.conf (gnulib_modules): Add dirname-lgpl, fdatasync, openat-safer, unistd-safer, unlinkat. * gzip.c: Include stddef.h, dirname.h. Include fcntl--.h instead of fcntl-safer.h. (RW_USER): Remove; no longer needed. (dfname, dfd): New static vars. (dot): New static const. (atdir_eq, atdir_set): New functions. (treat_file): Also fdatasync the output directory, if !keep. (treat_file, create_outfile, open_and_stat): Use dir fd for unlinkat and openat, if possible. (open_and_stat): Omit mode argument, since it was always the same. All callers changed. * lib/.gitignore, m4/.gitignore: Add new gnulib files. * tailor.h (PROTO, NO_STDIN_FSTAT, OPEN): Remove. Remove MACOS section, as this stuff would not work anyway now, and circa 2001 Apple stopped supporting Mac OS 9 and earlier. * zip.c: Do not include unistd.h and fcntl.h, as this file does not directly use any symbols defined by those headers. 2016-02-22 Paul Eggert <eggert@cs.ucla.edu> fsync output file before closing Problem reported by Yanyan Jiang 蒋炎岩 in: http://bugs.gnu.org/22768 * NEWS: Document this. * bootstrap.conf (gnulib_modules): Add fsync. * gzip.c (treat_file): Call fsync just before closing the output. * lib/.gitignore, m4/.gitignore: Add fsync-related gnulib files. 2016-01-22 Jason Leschnik <jason@leschnik.me> doc: correct a diagnostic in man page to match actual * gzip.1: s/no change/unchanged/ This addresses http://debbugs.gnu.org/22413 2016-01-01 Jim Meyering <meyering@fb.com> maint: update copyright year, bootstrap, init.sh Run "make update-copyright" and then... * gzip.c: Transform the copyright notice via s/2015/2016/. * gnulib: Update to latest. * tests/init.sh: Update from gnulib. * bootstrap: Likewise. 2015-11-01 Jim Meyering <meyering@fb.com> maint: avoid three warnings from the very latest gcc-built-from-git * unzip.c (unzip): Correct two format strings to match the types of the corresponding arguments. * unlzw.c (unlzw): Cast an "int" to unsigned to match expected type of %x. 2015-08-24 Jim Meyering <meyering@fb.com> maint: adjust copyright notices in *.in files to be consistent The copyright year ranges in *.in files were not being updated, because of a missing ", Inc." suffix. Add that, run run "make udpate-copyright", and ensure 2010..2015 year ranges are covered. * gunzip.in: Update copyright notice and year ranges. * gzexe.in: Likewise. * zcat.in: Likewise. * zdiff.in: Likewise. * zforce.in: Likewise. * zgrep.in: Likewise. * zless.in: Likewise. * zmore.in: Likewise. * znew.in: Likewise. 2015-08-24 Jim Meyering <meyering@fb.com> build: avoid -Wshift-negative-value warning Configured with --enable-gcc-warnings, a gcc-6.x build would fail with this: gzip.c:118:32: error: left shift of negative value #define OFF_T_MIN (~ (off_t) 0 << (sizeof (off_t) * CHAR_BIT - 1)) * gzip.c [OFF_T_MAX]: Define in terms of TYPE_MAXIMUM, not OFF_T_MIN. [OFF_T_MIN]: Remove now-unused definition. Include "intprops.h" for definiton of TYPE_MAXIMUM. * bootstrap.conf (gnulib_modules): Add intprops. 2015-07-30 Jim Meyering <meyering@fb.com> maint: remove dead code This package has not been compilable with -DCRYPT since commit v1.4-82-g9d1b943. Remove final vestiges. * bits.c (copy_block) [CRYPT]: Remove #ifdef'd code. * inflate.c (NEXTBYTE) [CRYPT]: Likewise. Prompted by a report from Flávio Medeiros that HEADER and T might be used uninitialized. 2015-03-17 Paul Eggert <eggert@cs.ucla.edu> gzip: make the GZIP env var obsolescent * NEWS, gzip.1: * doc/gzip.texi (Environment, Tapes): Document this. * gzip.c (args): Remove static var; no longer needed now that 'main' frees it. All uses removed. (ENV_OPTION, shortopts): New constants. (main): Warn about nontrivial uses of GZIP. Reject dangerous uses. * tests/gzip-env: New test case. * tests/Makefile.am (TESTS): Add it. * util.c (add_envopt): Create new vector instead of adding to old one. Only use changed. 2015-03-13 Paul Eggert <eggert@cs.ucla.edu> maint: adjust to recent gnulib * doc/.gitignore: Add gendocs_template_min. * lib/.gitignore: Add assure.h. 2015-02-08 Jim Meyering <meyering@fb.com> maint: ensure that --version's copyright date is current * cfg.mk (sc_gzip_copyright_check): Ensure we keep this copyright year number up to date. Reported by Paul Eggert. * gzip.c (license_msg): Include only the current year number, as is done in nearly every other program. gnulib: update to latest 2015-01-01 Jim Meyering <meyering@fb.com> maint: update copyright year ranges to include 2015; update gnulib 2014-11-10 Jim Meyering <meyering@fb.com> maint: move new NEWS entry into block for upcoming release * NEWS: Move the latest NEWS entry from the block for gzip-1.6 into the block for the upcoming release. 2014-11-10 Paul Eggert <eggert@cs.ucla.edu> gzip: adjust -v output when -k is also specified Problem reported by Eric Benoit in: http://bugs.gnu.org/16401 * gzip.c (treat_file): When keeping a file, don't say it's replaced. * NEWS: Document this. * tests/keep: Test this. 2014-11-10 Jim Meyering <meyering@fb.com> maint: enable more syntax checks * cfg.mk (local-checks-to-skip): Remove several rule names from this list, thus enabling the corresponding checks. To fix some, I made syntactic changes to source files. In other cases, I exempted certain files from the checks. Add exemptions for these: sc_prohibit_atoi_atof = ^(gzip|sample/sub)\.c$$ sc_space_tab = ^lib/match\.c$$ sc_useless_cpp_parens = ^(lib/match\.c|tailor\.h)$$ * configure.ac: Add quotes to fix under-quoting. * deflate.c: Remove unnecessary cpp parentheses. * tests/Makefile.am (TEST_ENVIRONMENT): Remove space-before-TAB. * unlzw.c: Change some TABs to spaces. maint: avoid false positive match in check for double semicolon * cfg.mk (exclude_file_name_regexp--sc_prohibit_double_semicolon): Exempt the file, lib/match.c, from gnulib's new double-semicolon check. gnulib+bootstrap: update to latest * gnulib: Update the submodule. * bootstrap: Update from gnulib. 2014-10-10 Paul Eggert <eggert@cs.ucla.edu> tests: use local dir for output Reported by Kiyoshi KANAZAWA in: http://bugs.gnu.org/18679 * tests/unpack-invalid: Use local directory, not /tmp, for output. 2014-08-10 Paul Eggert <eggert@cs.ucla.edu> gzip: fix --suffix=z bug (Bug#18239) * gzip.c (get_suffix): Put --suffix string at the end of the list of suffixes if it is a suffix of one one them. * tests/z-suffix: New file. * tests/Makefile.am (TESTS): Add it. 2014-06-12 Paul Eggert <eggert@cs.ucla.edu> zgrep: exit with status 0 if a file matches and there's no trouble Reported by Pavel Raiskup in: http://bugs.gnu.org/17760 * zgrep.in (res): Treat exit status 0 to be greater than 1. Also, exit immediately on software configuration error. 2014-06-07 Paul Eggert <eggert@cs.ucla.edu> doc: use UTF-8 in the manual * doc/gzip.texi: Switch to UTF-8 encoding. Fix ASCIIisms. Don't use @sc; plain caps are fine for GNU manuals. maint: update .gitignore files * lib/.gitignore, m4/.gitignore: Adjust to match current sources. Also, sort. 2014-06-07 Jim Meyering <meyering@fb.com> maint: udpate all copyright notices via "make update-copyright" maint: update copyright year range in gzip.texi * doc/gzip.texi: Update copyright date. maint: update gnulib to latest and adapt streamsavedir usage * gnulib: Update module to latest. * gzip.c (treat_dir): Gnulib's streamsavedir API has changed: call it with a new argument, SAVEDIR_SORT_NONE, to retain the preceding behavior. 2014-03-06 Paul Eggert <eggert@cs.ucla.edu> zless: improve gzip failure checking, and port to new -V format Problem reported by Jaroslaw Weglinski, and LESSOPEN change suggested by Mark Nudelman, in: http://bugs.gnu.org/16951 This doesn't fix bug 16951 entirely, as 'less' needs to be changed too, but it's a start. * zless.in (check_exit_status): New var. (LESSOPEN): Use it. (use_input_pipe_on_stdin): Adjust to output format on Fedora 20, where 'less -V' outputs "less 458 (POSIX regular expressions)" on the first line. 2013-10-24 Paul Eggert <eggert@cs.ucla.edu> gzip: fix permissions issue on Solaris-like systems I.e., on systems that let users give files away. * gzip.c (do_chown): New function. (copy_stat): Use it, to change the group, then the permissions, then the owner. Idea suggested by Vladimir Marek in <http://bugs.gnu.org/15672#11> 2013-10-03 Paul Eggert <eggert@cs.ucla.edu> znew: avoid denial-of-service issue Reported by Rich Burridge in <http://bugs.gnu.org/15522>. * znew.in: Rewrite to avoid the need for a temporary file in /tmp. That way, we avoid the need for set -C and worrying about denial of service. Use touch -r and chmod --reference rather than cpmod. Assume cp -p works, as it's now universal. Quote 'echo' args better, while we're at it. (warn, tmp, cpmod, cpmodarg): Remove. (GZIP): Unset, so that we needn't test for gzip extension. (ext): Now always '.gz'. * znew.1: Document the change of implementation assumptions. 2013-06-19 Paul Eggert <eggert@cs.ucla.edu> Fix spelling typo in newly-added comment. tests: zgrep-signal race condition fix * tests/zgrep-signal: Check that Perl supports dup2. (exec_with_SIGPIPE_SIGDFL): Remove. (write_to_dangling_pipe): Simplify by moving more of it into Perl. Fix race condition, where subcommand writes to a pipe before the ":" command exits. Problem reported by Thorsten Glaser in <http://lists.gnu.org/archive/html/bug-gzip/2013-06/msg00028.html>. 2013-06-12 Paul Eggert <eggert@cs.ucla.edu> zgrep: usage should say which grep options are not supported * zgrep.in (usage): Document which grep options are not supported. Problem reported by Liron Paryente in <http://lists.gnu.org/archive/html/bug-grep/2013-06/msg00005.html>. 2013-06-11 Paul Eggert <eggert@cs.ucla.edu> gzip: port util.c to Compaq C V6.5-303 * util.c (crc_32_tab): Move definition to front, since this compiler doesn't allow declarations of static arrays with incomplete types. Problem reported by Steven M. Schweda in <http://lists.gnu.org/archive/html/bug-gzip/2013-06/msg00010.html>. tests: zgrep-context assumes grep knows context * tests/Makefile.am (TESTS_ENVIRONMENT): Pass GREP too. * tests/zgrep-context: Check that the underlying grep supports context options. Problem reported by Steven M. Schweda in <http://lists.gnu.org/archive/html/bug-gzip/2013-06/msg00010.html>. doc: zgrep exit status, unsupported options * zgrep.1 (EXIT STATUS, BUGS): New sections. Problem reported by Bdale Garbee in <http://lists.gnu.org/archive/html/bug-gzip/2013-06/msg00007.html>. maint: port to platforms lacking SIGPIPE * tailor.h (SIGPIPE): Define to 0 if not defined. This fixes a porting bug introduced as part of 2012-11-16 syntax-check cleanup. Problem reported by Bdale Garbee in <http://lists.gnu.org/archive/html/bug-gzip/2013-06/msg00006.html>. 2013-06-09 Jim Meyering <meyering@fb.com> maint: post-release administrivia * NEWS: Add header line for next release. * .prev-version: Record previous version. * cfg.mk (old_NEWS_hash): Auto-update. version 1.6 * NEWS: Record release date. build: avoid automake warning that suggests use of subdir-objects * configure.ac (AM_INIT_AUTOMAKE): Use the subdir-objects option. build: avoid warning about deprecated use of automake's ACLOCAL_AMFLAGS * Makefile.am (ACLOCAL_AMFLAGS): Don't use this deprecated variable. * configure.ac: Do this instead: AC_CONFIG_MACRO_DIR([m4]). build: use more portable shell syntax in search of working shell * m4/shell.m4: Adjust sh/case syntax not to evoke a syntax error from Solaris 10's /bin/sh. build: update gnulib to latest, and bootstrap 2013-05-28 Jim Meyering <meyering@fb.com> tests: exercise the new --keep option * tests/keep: New file. * tests/Makefile.am (TESTS): Add it. 2013-05-28 Rodrigo Campos <rodrigo@sdfg.com.ar> gzip: add "--keep" option to retain (don't delete) input files gzip now accepts the --keep (-k) option, for consistency with tools like xz, lzip and bzip2. With this option, gzip no longer removes named input files when compressing and decompressing. * doc/gzip.texi: Document it. * gzip.1: Likewise. * gunzip.in: Likewise. * NEWS: Likewise. * gzip.c: Add support for "--keep". 2013-04-15 Paul Eggert <eggert@cs.ucla.edu> tests: redo patch for non-GNU gzip installed in /usr/local/bin Problem with previous patch reported by Antonio Diaz Diaz in <http://lists.gnu.org/archive/html/bug-gzip/2013-04/msg00011.html>. * tests/help-version (gunzip_setuphelp, gzexe_setuphelp) (zcat_setuphelp, zcmp_setuphelp, zdiff_setuphelp) (zegrep_setuphelp, zfgrep_setuphelp, zforce_setuphelp) (zgrep_setuphelp, zless_setuphelp, zmore_setuphelp) (znew_setuphelp): New functions, used when testing even --help. (zdiff_setup, zcat_setup, znew_setup, zgrep_setup, gzexe_setup): Use gzip_setuphelp to set --__bindir. 2013-04-10 Paul Eggert <eggert@cs.ucla.edu> tests: work even if non-GNU gzip is installed in /usr/local/bin Problem reported by Antonio Diaz Diaz in <http://lists.gnu.org/archive/html/bug-gzip/2013-04/msg00004.html>. * tests/help-version (zdiff_setup, zcat_setup, znew_setup, zgrep_setup) (gzexe_setup): Pass --__bindir so that subsidiary programs are our own's, not /usr/local/bin's. This requires using 'eval' on the result. (zcmp_setup, gunzip_setup, zmore_setup, zless_setup, zforce_setup) (zegrep_setup, zfgrep_setup): Invoke one of the other setup functions, to make the patterns more obvious and simplify future maintenance. * zcmp.in, zegrep.in, zfgrep.in: Pass __bindir to subsidiary program. maint: adjust to Gnulib, Automake changes * .gitignore: Add *.trs. * lib/.gitignore: Add unused-parameter.h. tests: port to Solaris 10 /bin/sh * tests/Makefile.am (TESTS_ENVIRONMENT): Use "FOO=val; export FOO" rather than "export FOO=val", as the latter form doesn't work with Solaris /bin/sh. 2013-02-25 Paul Eggert <eggert@cs.ucla.edu> gzip: port to DMF file systems * util.c (read_buffer): When reading a file with O_NONBLOCK, if the read fails with errno==EAGAIN, clear O_NONBLOCK and try again. Problem reported by Vitezslav Cizek in <http://lists.gnu.org/archive/html/bug-gzip/2013-02/msg00030.html>. 2013-02-05 Paul Eggert <eggert@cs.ucla.edu> gzip: fix bug where you say "n" and gzip acts as if you said "y" Problem reported for GCC 4.7 x86-64 -O2 by Allan McRae in <http://lists.gnu.org/archive/html/bug-gzip/2013-02/msg00000.html>. * NEWS: Document this. Use consistent format in earlier note. * gzip.c: Include yesno.h. * gzip.h (yesno): Remove decl; that's yesno.h's job. 2013-01-06 Paul Eggert <eggert@cs.ucla.edu> maint: adjust to Gnulib changes * lib/.gitignore: Add glthread, math.c, unistd.c, wctype-h.c. * m4/.gitignore: Remove inline.m4. 2013-01-04 Jim Meyering <jim@meyering.net> maint: update all copyright year number ranges Run "make update-copyright". build: update gnulib submodule to latest 2012-12-10 Paul Eggert <eggert@cs.ucla.edu> diagnose unexpected EOF and zero lengths in packed data Problem reported by Aki Helin. * NEWS: Mention Aki's reports. * tests/unpack-invalid: New file, with test data suggested by Aki. * tests/Makefile.am (TESTS): Add it. * unpack.c (read_byte): New function. (look_bits, read_tree): Use it. (read_tree): Check against zero bit length Huffman code. gzip: diagnose invalid code in packed data * unpack.c (unpack): When encountering a code out of range, report it and fail rather than charging ahead with randomish output. Problem reported by Aki Helin. 2012-11-16 Jim Meyering <jim@meyering.net> maint: avoid new syntax-check failures * cfg.mk (_gl_TS_unmarked_extern_vars): Append nice_match, to avoid false-positive syntax-check failure on i686. * gzip.c (SIGPIPE): Remove definition. Now always provided via gnulib. * lib/.gitignore: xsize.c, added by gnulib-tool. 2012-11-16 Paul Eggert <eggert@cs.ucla.edu> gzip: fix debugging/porting typo * unlzw.c (unlzw) [DEBUG]: Don't assume 'long' can be printed with %d. maint: merge build improvements from coreutils * configure.ac: Invoke gl_ASSERT_NO_GNULIB_POSIXCHECK. (--enable-gcc-warnings): Change help message. (gl_GCC_VERSION_IFELSE): New macro. Do not omit -Wunused-macros for main code. Adjust other -W options as per coreutils. * lib/Makefile.am (AM_CFLAGS): Use GNULIB_WARN_CFLAGS, not WARN_CFLAGS. * unlzw.c (REGISTERS, REG1, REG2, ..., REG16): Remove. All uses removed. These provoked -Wunused-macros warnings. This sort of fiddling with registers hasn't been needed for years. build: update gnulib submodule to latest maint: port to platforms lacking SIGPIPE * gzip.c (SIGPIPE): Define to 0 if not already defined. doc: bring up to date and fix troff typos * doc/gzip.texi (Overview): Update RFC URLs. * gzip.1: Likewise. Don't say "SEE ALSO" to programs that almost nobody has installed anymore. * gzip.1, zmore.1: Fix some troff typos. * zdiff.1: Clarify what happens with input files. Don't talk about temporary file names, as they're rarely used these days. 2012-10-24 Paul Eggert <eggert@cs.ucla.edu> tests: exercise the grep -e portability fix Remove workaround for Solaris, since the bug should be fixed now. Suggested by Petr Sumbera in <http://lists.gnu.org/archive/html/bug-gzip/2012-10/msg00005.html>. * tests/zgrep-context, tests/zgrep-f: All uses removed. * tests/init.cfg (require_POSIX_grep_): Remove. 2012-10-23 Eric Blake <eblake@redhat.com> build: default to --enable-gcc-warnings in a git tree Anyone building from cloned sources can be assumed to have a new enough environment, such that enabling gcc warnings by default will be useful. Tarballs still default to no warnings, and the default can still be overridden with --disable-gcc-warnings. * configure.ac (gl_gcc_warnings): Set default based on environment. 2012-10-20 Paul Eggert <eggert@cs.ucla.edu> zgrep: do not assume standard 'grep' has -e On Solaris 11, /usr/bin/grep -e does not work. Problem reported by Petr Sumbera in <http://lists.gnu.org/archive/html/bug-gzip/2012-10/msg00003.html>. * Makefile.am (.in): Substitute @GREP@. * configure.ac (AC_PROG_GREP): Invoke. * zgrep.in (grep): Use @GREP@. 2012-08-14 Paul Eggert <eggert@cs.ucla.edu> zgrep: do not assume GNU expr * zgrep.in: Do not assume '\+' has the GNU behavior in the BRE given to 'expr', as POSIX does not guarantee that. Come to think of it, use a shell pattern rather than 'expr', as this is more efficient. 2012-08-08 Jim Meyering <meyering@redhat.com> tests: exercise the just-fixed part of zgrep * tests/zgrep-context: New file. * tests/Makefile.am (TESTS): Add it. 2012-08-08 Jim Meyering <meyering@redhat.com> zgrep: handle a multi-digit context option like -15 * zgrep.in: Do not malfunction when given an option like -15. Before, it could end up treating the pattern as a file name: $ echo x | gzip | zgrep -15 x gzip: x.gz: No such file or directory * NEWS (Bug fixes): Mention it. Reported by Dan Bloch via Thomas Bushnell in https://bugs.launchpad.net/bugs/1032831 2012-08-07 Jim Meyering <meyering@redhat.com> build: update gnulib, bootstrap and init.sh maint: fix misspellings in old ChangeLog and NEWS * ChangeLog-2007: s/Supress/Suppress/ * NEWS: Likewise. * cfg.mk (old_NEWS_hash): Update to match typo fix. 2012-06-19 Paul Eggert <eggert@cs.ucla.edu> zmore: rewrite to fix bugs and assume POSIX Problem reported for Solaris 9 by Daniel in <http://lists.gnu.org/archive/html/bug-gzip/2012-06/msg00007.html>. Rather than figure out what exactly went wrong in Solaris 9 it was easier to rip out all the buggy compatibility and stty cruft. * zmore.in: Don't use stty or trap; simply pipe the output to 'more' and let it deal with signals and terminal control. Use printf, not 'echo', to avoid problems with backslashes. Don't assume ANS is not 's' in the environment. Use a 'more'-style header instead of rolling our own style. Paginate the header, too; the old behavior lost the header. * NEWS, zmore.1: Document this. 2012-06-17 Jim Meyering <meyering@redhat.com> maint: add .mailmap * .mailmap: New file. Unify two spellings of Paul's name, to make git log output slightly cleaner. maint: post-release administrivia * NEWS: Add header line for next release. * .prev-version: Record previous version. * cfg.mk (old_NEWS_hash): Auto-update. version 1.5 * NEWS: Record release date. build: update gnulib for fixed maint.mk build: update gnulib submodule; bootstrap and init.sh, too * cfg.mk: Exempt crufty tailor.h from its use of "#define off_t...". * .gitignore, m4/.gitignore: Update semi-automatically (via bootstrap). 2012-04-24 Paul Eggert <eggert@cs.ucla.edu> doc: document -rf change * NEWS: Document the ZFS fix. gzip: remove CLOSEDIR * gzip.c (CLOSEDIR): Remove; no longer used. gzip: port gzip -rf to ZFS Problem reported privately by Rich Burridge. * bootstrap.conf: Add savedir. * gzip.c: Include <savedir.h>. (_D_EXACT_NAMELEN): Remove. (treat_dir): Use savedir rather than reading directory entries one at a time, to avoid revisiting an already-compressed file when using ZFS and the -rf flags are specified. * lib/.gitignore, m4/.gitignore: Ignore savedir-related files. 2012-03-18 Paul Eggert <eggert@cs.ucla.edu> gzip: fix nondeterministic compression results Reported by Jakub Wilk in <http://bugs.debian.org/647522>. * deflate.c (fill_window): Don't let garbage pollute the dictionary. 2012-01-11 Jim Meyering <meyering@redhat.com> tests: make all test scripts executable; work with automake-1.12 * tests/Makefile.am (TESTS_ENVIRONMENT): Adapt to work with upcoming automake-1.12. * tests/mixed: Make executable. * tests/zgrep-f: Likewise. * tests/zgrep-signal: Likewise. * tests/znew-k: Likewise. build: accommodate newer bootstrap from gnulib * bootstrap.conf (gnulib_tool_option_extras): Add both --symlink and --makefile-name=gnulib.mk. * bootstrap: Update from gnulib. * tests/init.sh: Update from gnulib. * lib/Makefile.am: Initialize all of the following so that generated code in gnulib.mk may use += to append to those variables: AM_CFLAGS, BUILT_SOURCES, CLEANFILES, EXTRA_DIST, MOSTLYCLEANDIRS, MOSTLYCLEANFILES, SUFFIXES, noinst_LTLIBRARIES. 2012-01-01 Jim Meyering <meyering@redhat.com> maint: update all copyright year number ranges Run "make update-copyright". 2011-12-21 Paul Eggert <eggert@cs.ucla.edu> zless: decompress stdin too, if less 429 or later * zless.in: Use LESSOPEN |- feature of less 429 or later. Problem reported by Jeroen Roovers via Mike Frysinger in <http://lists.gnu.org/archive/html/bug-gzip/2011-12/msg00006.html>. 2011-11-29 Jim Meyering <meyering@redhat.com> build: update gnulib submodule to latest build: accommodate gnulib's new warnings with --enable-gcc-warnings * configure.ac (WERROR_CFLAGS): Disable two new warnings: -Wno-format-nonliteral, -Wno-unsuffixed-float-constants. * gzip.h (bi_reverse): Declare with _GL_ATTRIBUTE_CONST. (gzip_base_name): Declare with _GL_ATTRIBUTE_PURE. 2011-11-29 Jim Meyering <meyering@redhat.com> tests: use "compare exp out", not "compare out exp" Likewise, when an empty file is expected, use "compare /dev/null out", not "compare out /dev/null". I.e., specify the expected/desired contents via the first file name. Prompted by a suggestion from Bruno Haible in http://thread.gmane.org/gmane.comp.gnu.grep.bugs/4020/focus=29154 Run these commands: git grep -l -E 'compare [^ ]+ exp' \ |xargs perl -pi -e 's/\b(compare) (\S+) (exp\S*)/$1 $3 $2/' git grep -l -E 'compare [^ ]+ /dev/null' \ |xargs perl -pi -e 's,\b(compare) (\S+) (/dev/null),$1 $3 $2,' 2011-11-05 Jim Meyering <meyering@redhat.com> build: update gnulib submodule to latest 2011-11-02 Paul Eggert <eggert@cs.ucla.edu> * tests/zgrep-signal: Don't assume exit status 141 on PIPE signal. Problem reported by Eric Blake in <http://lists.gnu.org/archive/html/bug-gzip/2011-11/msg00007.html>. * tests/zgrep-signal: Use perl instead of a nonportable shell trap. Problem reported by Eric Blake in <http://lists.gnu.org/archive/html/bug-gzip/2011-11/msg00005.html>. * tests/zgrep-signal: Test for Fedora 15 signal bug. Also, don't assume that SIGPIPE is SIG_DFL on entry. 2011-11-02 Jim Meyering <meyering@redhat.com> build: update gnulib submodule to latest tests: mixed: correct size-enumeration logic * tests/mixed (sizes): Fix misplaced "&& break" that made us test only with a size of 0, rather than all sizes in 0..64. maint: avoid "make syntax-check" failure * gzip.c (treat_stdin): Indent with spaces, not TABs. 2011-11-02 Paul Eggert <eggert@cs.ucla.edu> * gzip.c (treat_stdin): If quiet, be quiet with plain gzip -q. Problem reported by Michaël Guitton in <http://lists.gnu.org/archive/html/bug-gzip/2011-11/msg00000.html>. 2011-08-10 Jim Meyering <meyering@redhat.com> maint: remove amiga, atari, msdos, nt, os2, vms sub-directories, and all files therein. This was proposed months prior, and no one objected. * amiga/Makefile.gcc: Remove file. * amiga/Makefile.sasc: Likewise. * amiga/match.a: Likewise. * amiga/tailor.c: Likewise. * amiga/utime.h: Likewise. * atari/Makefile.st: Likewise. * msdos/Makefile.bor: Likewise. * msdos/Makefile.djg: Likewise. * msdos/Makefile.msc: Likewise. * msdos/doturboc.bat: Likewise. * msdos/gzip.prj: Likewise. * msdos/match.asm: Likewise. * msdos/tailor.c: Likewise. * nt/Makefile.nt: Likewise. * os2/Makefile.os2: Likewise. * os2/gzip.def: Likewise. * os2/gzip16.def: Likewise. * vms/Makefile.gcc: Likewise. * vms/Makefile.mms: Likewise. * vms/Makefile.vms: Likewise. * vms/Readme.vms: Likewise. * vms/gzip.hlp: Likewise. * vms/makegzip.com: Likewise. * vms/vms.c: Likewise. * Makefile.am (EXTRA_DIST): Remove those file names. build: use largefile module and update to latest gnulib * configure.ac: Remove AC_SYS_LARGEFILE, subsumed by ... * bootstrap.conf (gnulib_modules): ...this. Use largefile module. * gnulib: Update to latest. 2011-07-12 Jim Meyering <meyering@redhat.com> maint: update init.sh and bootstrap from gnulib * bootstrap: Update from gnulib. * tests/init.sh: Update from gnulib. maint: use gnulib's realloc-gnu and malloc-gnu modules * bootstrap.conf (gnulib_modules): Use realloc-gnu and malloc-gnu, rather than the now-deprecated realloc and malloc modules. build: update gnulib submodule to latest 2011-06-21 Paul Eggert <eggert@cs.ucla.edu> * deflate.c: Export nice_match to assembler. (static_unless_ASMV): New macro. (nice_match): Use it. 2011-06-08 Jim Meyering <meyering@redhat.com> build: fix "make syntax-check" * cfg.mk (_gl_TS_unmarked_extern_vars): Add good_match. build: avoid link failure: this time on i686 linux * deflate.c (good_match): Must not be static, since it may be used from lib/match.c. 2011-05-14 Jim Meyering <meyering@redhat.com> build: avoid link failure on at least i386-FreeBSD7.2 * deflate.c (match_start, prev_length, max_chain_length): Do not declare these as static. On some types of system/arch, they are used via match_.s. * cfg.mk (_gl_TS_unmarked_extern_vars): Mark those three variables as known-extern: match_start, prev_length, max_chain_length. 2011-05-13 Jim Meyering <meyering@redhat.com> avoid new build failure on a system without <crypt.h> * bits.c: Don't include "crypt.h", now that it's deleted. maint: use gnulib's new readme-release module * bootstrap.conf (gnulib_modules): Add readme-release. (bootstrap_epilogue): Add the recommended perl one-liner. * README-release: Remove file; it is now generated from gnulib. * .gitignore: Add it. 2011-05-09 Jim Meyering <meyering@redhat.com> build: update gnulib submodule to latest maint: prepare for gnulib's new tight-scope syntax-check rule * cfg.mk (_gl_TS_dir): Define. (_gl_TS_unmarked_extern_vars): Define. maint: declare many variables to be static * deflate.c: Likewise. * gzip.c: Likewise. * gzip.h: Likewise. * inflate.c: Likewise. * trees.c: Likewise. * unzip.c: Likewise. * util.c: Likewise. maint: remove crypt.[ch] stubs * Makefile.am (gzip_SOURCES): Remove crypt.c (EXTRA_DIST): Remove crypt.h * crypt.c, crypt.h: Remove files. * unpack.c: Don't #include "crypt.h" * zip.c: Likewise * util.c: Likewise. * unzip.c: Likewise. maint: limit scope of several functions * deflate.c (longest_match): Move extern declaration into #if-ASMV block. [!ASMV]: Define as static. * inflate.c: Remove unnecessary prototypes. ANSI-declify functions and declare them to be static. maint: remove all uses of OF((...)) prototype-hiding macro * bits.c: Remove all uses of OF. * deflate.c: Likewise. * gzip.c: Likewise. * inflate.c: Likewise. * lzw.h: Likewise. * trees.c: Likewise. * unlzh.c: Likewise. * unpack.c: Likewise. * util.c: Likewise. * gzip.h: Likewise. (OF): Remove its definition, too. maint: prepare for tight-scope rule: use noinst_HEADERS * Makefile.am (EXTRA_DIST): Move lzw.h and gzip.h from here to ... (noinst_HEADERS): ...here. For convenience, since the tight-scope rule uses $(noinst_HEADERS). 2011-04-14 Jim Meyering <meyering@redhat.com> maint: update bootstrap and init.sh from gnulib * bootstrap: Likewise. * tests/init.sh: Update from gnulib. maint: note that we'll remove amiga, atari, msdos, nt, os2, vms soon If someone can show that any of these are being used, let us know. * TODO: Note the plan to remove those directories this year. build: update gnulib submodule to latest maint: fix typos in vms manual: s/it\nit/\nit/ * vms/gzip.hlp: Remove doubled "it". 2011-04-10 Jim Meyering <meyering@redhat.com> maint: fix typos in comment: s/to to/to/ * deflate.c: Remove doubled 'to's. 2011-03-20 Jim Meyering <meyering@redhat.com> maint: stop using .x-sc_* files to list syntax-check exemptions Instead, use the new mechanism with which you merely use a variable (derived from the rule name) defined in cfg.mk to an ERE matching the exempted file names. * gnulib: Update to latest, to get maint.mk that implements this. * .x-sc_file_system: Remove file. * .x-sc_prohibit_tab_based_indentation: Likewise. * .x-sc_require_config_h: Likewise. * .x-sc_require_config_h_first: Likewise. * cfg.mk: Define variables to exempt the same files. 2011-03-18 Jim Meyering <meyering@redhat.com> doc: correct README-release * README-release: Remove mention of -announce mailing list. Unlike coreutils, gzip does not have its own. doc: update release procedure * README-release: Resync from coreutils' file by the same name. 2011-01-03 Jim Meyering <meyering@redhat.com> maint: update copyright year ranges to include 2011 Run "make update-copyright", so "make syntax-check" works in 2011. build: update gnulib submodule to latest maint: avoid failure of new test for bindtextdomain * cfg.mk (local-checks-to-skip): Add sc_bindtextdomain. 2010-12-02 Jim Meyering <meyering@redhat.com> maint: avoid "make syntax-check" failure due to old-NEWS modification * cfg.mk (old_NEWS_hash): Update, to reflect recent NEWS correction. 2010-12-01 Paul Eggert <eggert@cs.ucla.edu> * NEWS: The "gzip -f foo.gz" change occurred in 1.3.13, not 1.3.12 2010-11-10 Paul Eggert <eggert@cs.ucla.edu> zgrep: don't assume traditional behavior with signal numbers * zgrep.in: Don't assume the exit status is the signal number plus 128, as POSIX doesn't require this. No need to kill self; exiting with large status is enough. Propagate all exit statuses greater than 1, not merely those in the range 129..143, as there's no need to treat that range specially (and it's not portable anyway). 2010-11-09 Paul Eggert <eggert@cs.ucla.edu> zgrep: fix shell portability bug with -f; fix mishandling of "-e -" * tests/zgrep-f: Check for "zgrep -e -" bug, too. * zgrep.in: Don't assume that if the shell redirects fd 6, then this redirection is visible to the subsidiary grep. POSIX doesn't guarantee this visibility except for file descriptors 0, 1, and 2, and ksh does not support it. Problem reported by Thomas Schulz in <http://lists.gnu.org/archive/html/bug-gzip/2010-11/msg00000.html>. Also, fix a related bug: "-e -" was mishandled. These two bugs were introduced by commit 5b54db4546b84ec97ff57a62f8ddb98faacf77f2 dated 2009-10-09. (escape): Change the convention: do not assume that a stray X is present at the end of the last line. All uses changed. There was no longer any need for this convention, and fixing this made it a bit easier to use 'sed' in a later part of the fix. 2010-11-08 Paul Eggert <eggert@cs.ucla.edu> maint: fix copyright dates that were munged by a maintenance script * gunzip.in, gzexe.in, zcat.in, zcmp.in, zdiff.in, zforce.in: * zgrep.in, zless.in, zmore.in, znew.in: A script went awry when updating copyright dates in gzip's shell scripts. It should update comments to look like "# Copyright (C) 2007, 2010 Free Software Foundation, Inc." (with a set of years) and version messages to look like "Copyright (C) 2010 Free Software Foundation, Inc." (with just the most-recent year). Instead, it sometimes ignored one, sometimes the other, and typically put ranges into version messages. Fix all this stuff by hand, using dates that I divined from the change logs (so they're a bit more accurate than script-generated dates). We need to fix the script before it runs in 2011. 2010-10-23 Jim Meyering <meyering@redhat.com> maint: anchor patterns in .gitignore files * doc/.gitignore: Anchor patterns. * lib/.gitignore: Likewise. * m4/.gitignore: Likewise. maint: update bootstrap and init.sh from gnulib * bootstrap: Update. * tests/init.sh: Update. 2010-10-23 Rob Vermaas <rob.vermaas@gmail.com> maint: update to latest gnulib; use fdutimens, not gl_futimens * gzip.c (copy_stat): Use fdutimens, not gl_futimens. * gnulib: Update to latest. 2010-10-23 Jim Meyering <meyering@redhat.com> maint: accommodate stricter syntax-check Avoid #if, #define and #undef of always-defined symbols. * gzip.c (ELOOP, SIGPIPE): Remove unneeded cpp directives. * tailor.h (HAVE_DIRENT_H, HAVE_FCNTL_H, HAVE_UNISTD_H, MSDOS): (O_BINARY): Likewise. maint: make our use of gnulib's init.sh conform * tests/help-version: Make use of init.sh conform. * tests/helin-segv: Likewise. * tests/help-version: Likewise. * tests/hufts: Likewise. * tests/memcpy-abuse: Likewise. * tests/mixed: Likewise. * tests/null-suffix-clobber: Likewise. * tests/stdin: Likewise. * tests/trailing-nul: Likewise. * tests/zdiff: Likewise. * tests/zgrep-f: Likewise. * tests/zgrep-signal: Likewise. * tests/znew-k: Likewise. 2010-10-10 Jim Meyering <meyering@redhat.com> maint: describe policy on copyright year number ranges * README: Mention coreutils' long-standing policy on use of M-N ranges in copyright year lists. Requested by Richard Stallman. 2010-09-15 Paul Eggert <eggert@cs.ucla.edu> zgrep: fix parsing of -Eh options * zgrep.in: Update list of single-letter options to match what's in GNU grep. Add -h as an alias for --no-filename. Bug reported by Vladimir Sidorenko in <http://lists.gnu.org/archive/html/bug-gzip/2010-09/msg00007.html>. 2010-08-17 Paul Eggert <eggert@cs.ucla.edu> gzip: fix NO_SIZE_CHECK for VMS * gzip.c (do_list): Use if, not #if. * tailor.h (NO_SIZE_CHECK) [defined(VAXC) || defined(VMS)]: Define. * zip.c (zip): Simplify conditional, which was incorrect at any rate for VMS. 2010-08-15 Paul Eggert <eggert@cs.ucla.edu> algorithm.doc: mention Internet RFC 1952 and modernize a bit * algorithm.doc: Update to mention header-CRC and Internet RFC 1952. Also, remove the crypto stuff, which never worked. Inspired by that same suggestion of Greg Roelofs. gzip: Use 0x%04x instead of %x when printing 16-bit checksums * gzip.c (get_method): Use 0x%04x, not %x, to print 16-bit checksums. Inspired by a suggestion of Greg Roelofs in http://lists.gnu.org/archive/html/bug-gzip/2010-08/msg00004.html 2010-08-03 Paul Eggert <eggert@cs.ucla.edu> maint: update bootstrap * bootstrap, bootstrap.conf, tests/init.sh: Merge from gnulib. 2010-07-19 Paul R. Eggert <eggert@cs.ucla.edu> gzip: don't assume C99, and don't assume overlapping memcpy should work * tailor.h (NOMEMCPY): Remove. memcpy is entitled to not work on overlapping blocks. * inflate.c (inflate_codes): Don't put decl after statement. Omit NOMEMCPY. * gzip.c (get_method): don't assume size_t can be printed with %u 2010-07-02 Paul Eggert <eggert@cs.ucla.edu> Mention that gzip -d now handles FHCRC. 2010-07-02 Paul Eggert <eggert@cs.ucla.edu> Decode FHCRC flag properly, as per Internet RFC 1952. Problem reported by Greg Roelofs in: http://lists.gnu.org/archive/html/bug-gzip/2010-06/msg00003.html * gzip.c (discard_input_bytes): New function. (get_method): Check header checksum, if given. We never generate it, but other programs may. * gzip.h (HEADER_CRC): Renamed from CONTINUATION. All uses changed. * tailor.h [defined __50SERIES]: Remove PRIMOS stuff that was obsolete anyway and would have made this patch harder to maintain. (get_char, put_char): Remove. * zip.c (zip): Use put_byte instead of the now-removed put_char. 2010-07-01 Paul Eggert <eggert@cs.ucla.edu> Don't assume that sizeof (long) == 4 when computing statistics. * gzip.c (get_method): Don't assume sizeof (long) == 4. * zip.c (zip): Likewise. Update Info-ZIP name and coordinates (thanks to Greg Roelofs). 2010-05-11 Paul Eggert <eggert@cs.ucla.edu> * doc/gzip.texi (Sample): Fix backslash quoting problem. Problem reported by Ole Tange in <http://lists.gnu.org/archive/html/bug-gzip/2010-05/msg00000.html>. 2010-04-26 Jim Meyering <meyering@redhat.com> build: update gnulib submodule to latest maint: remove primos support * Makefile.am (EXTRA_DIST): Remove all primos/ files. * primos/build.cpl: Remove file. * primos/ci.opts: Likewise. * primos/include/errno.h: Likewise. * primos/include/fcntl.h: Likewise. * primos/include/stdlib.h: Likewise. * primos/include/sysStat.h: Likewise. * primos/include/sysTypes.h: Likewise. * primos/primos.c: Likewise. * primos/readme: Likewise. 2010-04-08 Jim Meyering <meyering@redhat.com> build: include cfg.mk in the distribution tarball * Makefile.am (EXTRA_DIST): Add cfg.mk. 2010-04-07 Eric Blake <eblake@redhat.com> maint: ignore more built files * .gitignore: Add version files. 2010-04-07 Jim Meyering <meyering@redhat.com> tests: help-version: cross-check PATH in tests * tests/help-version: Cross-check $VERSION and --version output. * tests/Makefile.am (TESTS_ENVIRONMENT): Export VERSION=$(VERSION). tests: improve help-version * tests/help-version: Use fail_, rather than echo+Exit. tests: pull help-version from grep build: keep --version strictly up to date Before this change, in development, gzip's --version output could lag behind reality by a couple deltas or by a "-dirty" suffix. That would lead to spurious failure of the new --version-$VERSION PATH cross-check. * Makefile.am (version.c, version.h): New rules. (BUILT_SOURCES): Set/append. (noinst_LIBRARIES, noinst_libver_a_SOURCES): Define. (gzip_LDADD): Add libver.a. (DISTCLEANFILES): Define. * gzip.c (license): Use Version, not VERSION. 2010-04-06 Jim Meyering <meyering@redhat.com> tests: (portability) use st, not "status" as variable name * tests/zgrep-signal: Do not use status as a variable name, per autoconf's documentation that it is not portable to some shells. tests: s/framework_failure/framework_failure_/ tests: update init.sh from gnulib * tests/init.sh: Update from gnulib. tests: run most tests via tests/Makefile.am * Makefile.am (SUBDIRS): List tests after ".". Move most test-related things from here to ... * tests/Makefile.am: ... here. * configure.ac (AC_CONFIG_FILES): Add tests/Makefile. * tests/helin-segv: Adjust. * tests/help-version: Likewise. * tests/hufts: Likewise. * tests/memcpy-abuse: Likewise. * tests/mixed: Likewise. * tests/null-suffix-clobber: Likewise. * tests/stdin: Likewise. * tests/trailing-nul: Likewise. * tests/zdiff: Likewise. * tests/zgrep-f: Likewise. * tests/zgrep-signal: Likewise. * tests/znew-k: Likewise. tests: skip tests that use grep's -f and -E options, if they don't work * tests/init.cfg (require_grep_minus_f): New function. * tests/zgrep-f: Use require_grep_minus_f. Use path_prepend_. tests: arrange for skip and failure notices to go to stderr, not .log * tests/init.cfg: New file. Make init.sh's stderr_fileno_ match what the "exec 9>&2" we use in TESTS_ENVIRONMENT. * Makefile.am (EXTRA_DIST): Add it. 2010-04-06 Eric Blake <eblake@redhat.com> maint: ignore generated files * .gitignore: Ignore recent gnulib additions. maint: update bootstrap * bootstrap: Use latest copy from gnulib/build-aux. 2010-04-05 Jim Meyering <meyering@redhat.com> build: use gnulib's lib-ignore module * bootstrap.conf (gnulib_modules): Add lib-ignore, in case it helps. * Makefile.am (AM_LDFLAGS): Define it. maint: let configure-invoked cpp emit diagnostics to config.log * configure.ac: Do not discard CPP's stderr. build: update gnulib submodule to latest, and adapt * cfg.mk: Update to use new _sc_search_regexp interface. Run this: perl -pi -e 's/\b_prohibit_regexp\b/_sc_search_regexp/;' -e 's/\bmsg=/halt=/; s/\bre=/prohibit=/;' cfg.mk and then adjust backslashes so they still line up. * cfg.mk (local-checks-to-skip): Add new sc_texinfo_acronym, to skip it. * msdos/tailor.c (fcalloc): Mark a diagnostic for translation, to placate stricter syntax-check, even though no one uses this file. use assembly code matcher when possible * configure.ac (ASCPPPOST): Backslash-escape "#" in AC_SUBST'd variable, to keep make from seeing it as a comment-introducer. Based on a patch by Petr Pisar. * lib/Makefile.am (match.$(OBJEXT)): Use AM_V_GEN and AM_V_at. * lib/match.c: Don't include <config.h>. It would impede configure-time assembler test. * .x-sc_require_config_h: Exempt lib/match.c from syntax-check. * .x-sc_require_config_h_first: Likewise. 2010-03-20 Jim Meyering <meyering@redhat.com> do not use stat.st_mtime of a non-regular file * gzip.c: Include "timespec.h". (treat_stdin): Use st_mtime only from a regular file. This matters at least on Cygwin 1.7.1-1, for which a stdin-pipe has the mtime of /dev/null, rather than the gzip-documented-for-pipes "current time". Reported by Denis Excoffier. 2010-02-22 Jim Meyering <meyering@redhat.com> tests: exercise the fix for the decompression data-loss bug * tests/null-suffix-clobber: New file. * Makefile.am (TESTS): Add it. gzip: fix a data-loss bug when decompressing with --suffix='' * gzip.c (main): Disallow an empty --suffix=S also with -d. Otherwise, "gzip -d -S '' F.gz" would ask if it's ok to remove the existing file, "F.gz"; if you reply "yes", you'd lose all of that data. Use of an empty suffix was already rejected in compression mode. * gzip.1 (--suffix (-S)): Do not recommend to use "gunzip -S '' *". Describe how the suffix is used when decompressing, too. * NEWS (Bug fixes): mention the fix. Reported by Ripduman Sohan. tests: add ---presume-input-tty option, solely for testing * gzip.c: Include <stdbool.h>. (presume_input_tty): New global. (main): Set it. (treat_stdin, check_ofname): Use it. 2010-02-07 Jim Meyering <meyering@redhat.com> doc: minor adjustment to README-release * README-release: Tweak description, to sync from coreutils. tests: add the help-version sanity tests from coreutils * tests/help-version: New file, from coreutils. * Makefile.am (TESTS): Add it. tests: make distcheck invoke "make syntax-check" and other tests * dist-check.mk: New file, from coreutils. * cfg.mk: Include it. * Makefile.am (distcheck-hook): New rule, to make us use it. zcmp: consistently indicate failure with exit status of 2 * zcmp.in: Exit with status of 2 (not 1), when writing --help or --version output fails, to be more like cmp. 2010-02-03 Jim Meyering <meyering@redhat.com> tests: add more tests of gzip -cdf * tests/mixed: Test "gzip -cdf" for a range of small uncompressed files. tests: flip and adjust mixed test, now that the bug is fixed * NEWS (Bug fixes): Mention the fix. * Makefile.am (XFAIL_TESTS): Move tests/mixed from here... (TESTS): ...to here. * tests/mixed: Comment out the currently (always?) failing part. 2010-02-03 Mark Adler <madler@alumni.caltech.edu> gzip -cdf now handles concatenation of gzip'd and uncompressed data * util.c (copy): Change semantics so as to honor a decremented inptr. * gzip.c (get_method): When needed (-cdf), decrement inptr rather than clearing it -- and output the first magic byte. 2010-02-03 Dmitry V. Levin <ldv@altlinux.org> zgrep: terminate gracefully when a pipeline is interrupted by a signal zgrep is not terminated gracefully when its grep/sed pipeline is terminated by a signal. For example, a command like zgrep -F .TH /usr/share/man/man1/*.gz | head continues working long after the "head" process completes. Another example, a command like zgrep unmatched-pattern /usr/share/man/man1/*.gz cannot be interrupted by sending a SIGQUIT with Ctrl-\ key, it outputs zgrep: line 221: test: : integer expression expected and goes on. * zgrep.in: Terminate gracefully when the grep/sed pipeline is terminated by a signal. * tests/zgrep-signal: New test. * Makefile.am (TESTS): Add it. 2010-02-03 Jim Meyering <meyering@redhat.com> maint: teach "make syntax-check" the space-only indentation rule * cfg.mk (sc_prohibit_tab_based_indentation): New rule, from coreutils. (sc_prohibit_emacs__indent_tabs_mode__setting): Likewise. * bootstrap: Remove "indent-tabs-mode: nil" directive. * .x-sc_prohibit_tab_based_indentation: New file. 2010-02-02 Jim Meyering <meyering@redhat.com> global: convert indentation-TABs to spaces Transformed via this shell code: t=$'\t' git ls-files \ | grep -vE '(^|/)((GNU)?[Mm]akefile|ChangeLog)|\.(am|mk)$' \ | grep -vE 'tests/pr/|help2man' \ | xargs grep -lE "^ *$t" \ | xargs perl -MText::Tabs -ni -le \ '$m=/^( *\t[ \t]*)(.*)/; print $m ? expand($1) . $2 : $_' 2010-02-02 Dmitry V. Levin <ldv@altlinux.org> wrapper scripts: write diagnostics to stderr, not to stdout * zforce.in: In case of usage error, output short error diagnostics to stderr instead of printing help text to stdout. * zmore.in: Likewise. * znew.in: Likewise. 2010-02-02 Jim Meyering <meyering@redhat.com> gzip -cdf mishandles some concatenated input streams: test it * tests/mixed: Exercise "gzip -cdf" bug. * Makefile.am (XFAIL_TESTS): Add it. Mark Adler reported the bug. tests: move the hufts-segv test to its own file * tests/hufts: New test. * Makefile.am (TESTS): Add tests/ (check-local): Remove the hufts-segv test from this rule. tests: begin moving tests into their own files * Makefile.am (TESTS): Add tests/stdin. (check-local): Move the stdin check to its own file: * tests/stdin: New script. tests: remove unnecessary use of "path_prepend_ ." It is unnecessary, since Makefile.am's TESTS_ENVIRONMENT setting already adds the top build directory, and besides, is only marginally useful when running stand-alone, since it presumes that the script is being run from the top build directory. * tests/helin-segv: Remove unnecessary use of path_prepend_. * tests/memcpy-abuse: Likewise. * tests/trailing-nul: Likewise. * tests/zdiff: Likewise. * tests/zgrep-f: Likewise. tests: note that znew-k test depends on length of temp file name * tests/znew-k: Tweak diagnostic, factor and add a surprising comment. 2010-02-01 Jim Meyering <meyering@redhat.com> build: update gnulib submodule to latest 2010-02-01 Dmitry V. Levin <ldv@altlinux.org> fix "znew -K" to work without use of compress utility * znew.in: Change -K option to imply -t, do not use compress(1). * znew.1: Document it. * tests/znew-k: New test. * Makefile.am (TESTS): Add it. 2010-01-20 Jim Meyering <meyering@redhat.com> maint: update README-release procedure * README-release: sync from coreutils. post-release administrivia * NEWS: Add header line for next release. * .prev-version: Record previous version. * cfg.mk (old_NEWS_hash): Auto-update. version 1.4 * NEWS: Record release date. tests: exercise the segfault fix * tests/helin-segv: New test. * Makefile.am (TESTS): Add it. gzip -d: do not clobber stack for valid input on x86_64 * unlzw.c (unlzw): Avoid integer overflow. Aki Helin reported the segfault along with an input to trigger the bug. * NEWS (Bug fixes): Mention it. maint: avoid a minor "make syntax-check" failure * .x-sc_file_system: Exempt NEWS, since it includes a literal from an old diagnostic. maint: remove unused file: README-alpha * README-alpha: Remove unused file. build: update gnulib submodule to latest 2010-01-11 Yuxi Zhang <YZhang@qnx.com> gzip -d: use memcpy more often * inflate.c (inflate_codes): Use memcpy (rather than slower memcopy-like code) in more cases. 2010-01-11 Jim Meyering <meyering@redhat.com> build: do not override gnulib-provided AM_CFLAGS options Avoid a warning from automake: lib/Makefile.am:24: AM_CFLAGS multiply defined in condition TRUE ... lib/gnulib.mk:30: ... `AM_CFLAGS' previously defined here lib/Makefile.am:20: `lib/gnulib.mk' included from here * lib/Makefile.am (AM_CFLAGS): Append $(WARN_CFLAGS) and $(WERROR_CFLAGS), i.e., use "+=", not "=". This was introduced via 2009-12-17 commit 0341fc22, "build: with --enable-gcc-warnings, use -Werror", but fortunately is not a bug, because the definition it would have overridden was always empty. 2010-01-10 Jim Meyering <meyering@redhat.com> gzip -d would fail with a CRC error... ...for some inputs, and some memcpy implementations. It is possible that an offending input has to be compressed "from FAT filesystem (MS-DOS, OS/2, NT)", since the sole reproducer no longer evokes a CRC error when uncompressed and recompressed on a GNU/Linux system. Also, using an unpatched reverse-memcpy-gzip on over 100,000 inputs on a GNU/Linux system did not turn up another reproducer. * inflate.c (inflate_codes): Don't call memcpy with overlapping regions. Properly detect when source and destination overlap. * tests/memcpy-abuse: New test, to trigger misbehavior. * Makefile.am (TESTS): Add it. * NEWS (Bug fixes): Mention it. Reported by Alain Magloire in http://thread.gmane.org/gmane.comp.gnu.gzip.bugs/307 2010-01-08 Jim Meyering <meyering@redhat.com> tests: switch to gnulib's init.sh test infrastructure * tests/test-lib.sh: Remove file. * tests/init.sh: New file, from gnulib. * tests/trailing-nul: Use the new file. * tests/zdiff: Likewise. * tests/zgrep-f: Likewise. * Makefile.am (EXTRA_DIST): List tests/init.sh, not test-lib.sh. build: update gnulib submodule to latest 2010-01-03 Jim Meyering <meyering@redhat.com> maint: record update-copyright options for this package * cfg.mk: Next time, just run "make update-copyright". 2010-01-01 Jim Meyering <meyering@redhat.com> maint: update all FSF copyright year lists to include 2010 Use this command: git ls-files |grep -vE '^(\..*|COPYING|gnulib)$' |xargs \ env UPDATE_COPYRIGHT_USE_INTERVALS=1 build-aux/update-copyright 2009-12-31 Jim Meyering <meyering@redhat.com> maint: newer gnulib; don't hard-code my GPG key ID * cfg.mk (gpg_key_ID): Remove definition, now that maint.mk automates it. * gnulib: Update to lastest. 2009-12-30 Jim Meyering <meyering@redhat.com> build: update gnulib submodule to latest maint: remove lots of obsolete #if...HAVE_* checks Remove many always-true cpp tests like #ifdef HAVE_UNISTD_H, #ifdef HAVE_FCNTL_H and #ifdef SSIZE_MAX. * gzip.c: As above. * gzip.h: Likewise. * inflate.c: Likewise. * tailor.h: Likewise. * unlzw.c: Likewise. * util.c: Likewise. * zip.c: Likewise. build: add a syntax-check * cfg.mk (sc_prohibit_obsolete_HAVE_HEADER_H): New rule. build: with --enable-gcc-warnings, use -Werror * Makefile.am (AM_CFLAGS): Enable $(WERROR_CFLAGS). * lib/Makefile.am (AM_CFLAGS): Enable both $(WARN_CFLAGS) and $(WERROR_CFLAGS). build: quiet warnings from util.c * configure.ac (warnings): Add -Wno-overflow and -Wno-type-limits. build: avoid warning about possibly-no-return functions * gzip.h (read_error, write_error): Mark these functions as "no-return". build: avoid warning about ignored chown/fchown return value * bootstrap.conf (gnulib_modules): Add ignore-value. * gzip.c: Include "ignore-value.h". (copy_stat): Explicitly ignore chown and fchown failure build: update gnulib submodule to latest 2009-11-20 Jim Meyering <meyering@redhat.com> build: unlzw.c: avoid warnings about unused macros * configure.ac: Turn off -Wunused-macros. build: avoid warnings about unused macros * unzip.c (LOCTIM): Comment out unused macro. * deflate.c (EQUAL): Remove definition. Use "0" at sole point of use. build: util.c: avoid warnings about add_envopt * util.c (add_envopt): The parameter "env" was used for two conflicting purposes. One use required a const char* parameter, while the other was used as an argument to free, which must not be "const". Rename the parameter and use a new local variable for the second role. build: avoid many const-related warnings * gzip.c: Add "const" to many variables, to avoid compiler warnings. * util.c (add_envopt): Make 3rd parameter const (gzip_error): Make sole parameter const. * gzip.h: Update prototypes. build: avoid warnings from -Wstrict-prototypes * gzip.c (main): Declare using a prototype. (progerror): Likewise. And make parameter const. build: use gnulib's fdopendir module * bootstrap.conf (gnulib_modules): Add fdopendir. * gzip.c (treat_dir): Don't depend on HAVE_FDOPENDIR. Gnulib now guarantees its availability. * configure.ac: Don't check for fdopendir here. build: enable many warnings * configure.ac: Add support for --enable-gcc-warnings. * bootstrap.conf (gnulib_modules): Add manywarnings. * Makefile.am (AM_CFLAGS): Add (WARN_CFLAGS) # $(WERROR_CFLAGS) maint: tweak formatting of bootstrap.conf * bootstrap.conf (gnulib_modules): Unindent list. maint: cfg.mk: remove factored-out ftp host/dir definitions * cfg.mk (gnu_ftp_host-alpha, gnu_ftp_host-beta gnu_ftp_host-stable): (gnu_rel_host, url_dir_list): Remove definitions. The defaults, now provided by maint.mk, are the same. * gnulib: Update for latest, including those maint.mk additions. build: "make stable" emitted an invalid gnupload command * cfg.mk (gnu_ftp_host-stable): Rename from gnu_ftp_host-major. * README-release: Change another s/major/stable/. 2009-10-30 Jim Meyering <meyering@redhat.com> post-release administrivia * NEWS: Add header line for next release. * .prev-version: Record previous version. * cfg.mk (old_NEWS_hash): Auto-update. version 1.3.14 * NEWS: Record release date. build: accommodate new syntax-check test * amiga/tailor.c (_expand_args): Change each of three uses of "exit(20)" to "exit(EXIT_FAILURE)". * sample/add.c: Include <stdlib.h>. (main): Use EXIT_FAILURE and EXIT_SUCCESS, not 1 and 0. * sample/sub.c (main): Likewise. * sample/zread.c (main): Likewise. build: update gnulib submodule to latest build: link with $(LIB_CLOCK_GETTIME) * Makefile.am (gzip_LDADD): Add $(LIB_CLOCK_GETTIME), now that utimens pulls in gettime. (FILES_TO_CHECK): Remove $(gzip_LDADD), now that it may contain -lrt. 2009-10-28 Jim Meyering <meyering@redhat.com> msdos: fix syntax in Makefile.djg * msdos/Makefile.djg (gzip): Change each of two leading 8-space sequences to a TAB. Reported by Allan Mui. 2009-10-20 Jim Meyering <meyering@redhat.com> build: do not use AC_PREFIX_PROGRAM * configure.ac: Do not use "AC_PREFIX_PROGRAM(gzip)". It would induce behavior that is so surprising that it is probably universally considered to be buggy, these days. Reported by Zube in http://thread.gmane.org/gmane.comp.gnu.gzip.bugs/273 2009-10-10 Jim Meyering <meyering@redhat.com> gzip: add tests for today's bug fix * tests/trailing-nul: New file. Test for today's fix. * Makefile.am (TESTS): Add new script. * NEWS (Bug fixes): Mention it. 2009-10-10 Daniel Barkalow <barkalow@iabervon.org> gzip: don't fail when there is exactly one trailing NUL byte * gzip.c (get_method): Require the second byte of magic only if the first byte was nonzero. 2009-10-09 Jim Meyering <meyering@redhat.com> build: enable automake color- and parallel-test options * configure.ac (AM_INIT_AUTOMAKE): Enable color-tests and parallel-tests. zgrep: portability improvements; exercise "-f -" * zgrep.in: Adjust loop not to use seq; it's not portable enough. Fail if we don't find a free file descriptor. (exists): New function; Use it in place of less portable "test -e". Testing for existence of /dev/fd/$fd doesn't work on Solaris 10, since all 256 always exist (as char devices), but testing for /proc/$$/fd/$fd does work, so do that instead. * Makefile.am (TESTS): Add tests/zgrep-f. * tests/zgrep-f: New test; exercise this bug. * NEWS (Bug fixes): Mention it. 2009-10-09 Carl Worth <cworth@cworth.org> zgrep: handle "-f -" the same way that it works with grep Before this change, echo needle|zgrep -f - haystack.gz would not work. * zgrep.in: When the pattern comes from stdin, redirect it to a different file descriptor, since we're about to use stdin. 2009-10-09 Jim Meyering <meyering@redhat.com> zdiff would exit 2 (error) rather than 1 for differences * zdiff.in: Save and restore cmp's exit status around a case statement that would otherwise clobber its value. * NEWS (Bug fixes): Mention it. * tests/zdiff: New test; exercise both bugs. * tests/test-lib.sh: New file. From coreutils. * Makefile.am (EXTRA_DIST): Add tests/test-lib.sh. (TESTS): Add tests/zdiff. (TESTS_ENVIRONMENT): Define. From coreutils. (EXTRA_DIST): Append all $(TESTS). zdiff: fix malfunction when operating on two gzip'd inputs zdiff would fail to print differences in two compressed inputs * zdiff.in: Don't let cmp output mix with echo'd gzip exit status values. Report and fix from Jörg-Volker Peetz via <http://bugs.debian.org/434275> * NEWS (Bug fixes): Mention it. build: update gnulib submodule to latest 2009-10-07 Jim Meyering <meyering@redhat.com> build: update gnulib submodule to latest 2009-10-06 Jim Meyering <meyering@redhat.com> maint: clarify web-doc-update instructions * README-release: sync a tiny change from coreutils. 2009-10-03 Jim Meyering <meyering@redhat.com> build: update gnulib submodule to latest doc: use gnu-web-doc-update module * bootstrap.conf (gnulib_modules): Add it. 2009-10-02 Jim Meyering <meyering@redhat.com> doc: describe release procedure * README-release: New file. 2009-10-01 Jim Meyering <meyering@redhat.com> maint: make cfg.mk slightly more generic * cfg.mk (url_dir_list): Don't hard-code "coreutils". Use $(PACKAGE). 2009-09-30 Jim Meyering <meyering@redhat.com> post-release administrivia * NEWS: Add header line for next release. * .prev-version: Record previous version. * cfg.mk (old_NEWS_hash): Auto-update. version 1.3.13 * NEWS: Record release date. build: update gnulib submodule to latest maint: update bootstrap script * bootstrap (with_gettext): Update from coreutils. maint: pull in two release-related modules from gnulib * bootstrap.conf (gnulib_modules): Add announce-gen and gnupload. build: use more gnulib modules for better POSIX compliance * bootstrap.conf (gnulib_modules): Add modules exposed via make CFLAGS=-DGNULIB_POSIXCHECK 2>&1 \ |perl -lne '/.* use gnulib module (\S+).*/ and print $1' \ |sort |uniq -c|sort -nr Add these: calloc close fclose fprintf-posix lstat malloc perror printf-posix realloc 2009-09-30 Karl Berry <karl@freefriends.org> doc: update to FDL 1.3, minor clean-up * NEWS, README, TODO: Update FDL s/1.2/1.3/. 2009-09-28 Karl Berry <karl@freefriends.org> doc: update gzip.texi * doc/gzip.texi: FDL 1.3+ Consistently (de)capitalize section names. "User's" is not correct; seems best to simplify the title. Throw in some "GNU"'s. Make direntries be what we actually want. Detabify. 2009-09-26 Jim Meyering <meyering@redhat.com> maint: temporarily exempt failing syntax-check tests * cfg.mk (local-checks-to-skip): Add the list of currently-failing tests, to exempt them from "make syntax-check". gzip: don't use an uninitialized file descriptor gzip interprets an argument of "-" as indicating stdin, but when "-" is not the first name on the command line, it doesn't work. * gzip.c (treat_stdin): Initialize "ifd". Patch and fine description by Lasse Collin in http://www.mail-archive.com/bug-gzip@gnu.org/msg00213.html * Makefile.am (check-local): Exercise the fix. Based on the above. * NEWS (Bug fixes): Mention this. maint: use a git submodule for gnulib * .gitmodules: New file, to track gnulib. * gnulib: New file, created by running this: git submodule add git://git.sv.gnu.org/gnulib.git gnulib maint: update existing copyright year lists to include 2009 * bootstrap.conf (gnulib_modules): Add update-copyright. maint: include <config.h> first in many files maint: avoid another "make syntax-check" failure * lib/Makefile.am (match.$(OBJEXT)): Use $(ASCPPPOST), not @ASCPPPOST@. maint: remove RCS $Id$ variables and comments maint: change spelling in comments: s/filesystem/file system/ maint: don't use "the the" * msdos/doturboc.bat: s/the the/the/. maint: remove trailing blanks maint: remove useless if-before-free tests * gzip.c (do_exit): Remove useless if-before-free tests. maint: remove useless casts to avoid "make syntax-check" failures * gzip.c (do_exit): Remove anachronistic cast. * inflate.c (huft_free): Likewise. * util.c (add_envopt): Likewise. * vms/vms.c (vms_expand_args): Likewise. maint: new file: .prev-version * .prev-version: New file, to record previous version number. 2009-09-06 Jim Meyering <meyering@redhat.com> build: avoid spurious warnings from clang * gzip.h (gzip_error): Declare with ATTRIBUTE_NORETURN. maint: update build-from-scratch infrastructure * bootstrap: Modernize. * bootstrap.conf: Modernize. * cfg.mk: New file. 2009-08-18 Jim Meyering <meyering@redhat.com> inflate: avoid a leak on a error path * inflate.c (inflate_dynamic): Don't leak maint: ignore a few generated files * lib/.gitignore: ignore more generated files. tests: add a test for just-fixed bug * tests/hufts-segv.gz: New file, from bug report. * Makefile.am (EXTRA_DIST): Add tests/hufts-segv.gz. (check-local): Exercise the bug. tests: don't misinterpret a failing test as successful * Makefile.am (check-local): Exit "1" upon failure, not 0. 2009-08-18 Thiemo Nagel <thiemo.nagel@ph.tum.de> avoid creating an undersized buffer for the hufts table A malformed input file can cause gzip to crash with a segmentation violation or hang in an endless loop. Reported in <http://bugs.debian.org/507263>. * NEWS (Bug fixes): Mention it. 2009-08-18 Jim Meyering <meyering@redhat.com> avoid silent data loss e.g., on NFS, due to unchecked close of stdout * gzip.c: Include "closein.h". (main): Use atexit (close_stdin); * bootstrap.conf (gnulib_modules): Add closein. Prompted by Mark Kidwell's report and patch in http://bugs.debian.org/538187 * NEWS (Bug fixes): Mention it. * */.gitignore: Update. build: require automake-1.11 and produce xz-compressed tarballs, too * configure.ac: Require automake-1.11. Use the dist-xz option. build: avoid non-srcdir build failure * Makefile.am (gzip.doc.gz): Use $(srcdir)/gzip.doc, not gzip.doc. Don't redirect directly to $@. Use $(AM_V_GEN). (gzip.doc, .in): Don't redirect directly to $@. Use $(AM_V_GEN). * NEWS: Add template header for upcoming release. build: enable git-version-gen, automake silent rules, generate ChangeLog * configure.ac (AC_INIT): Use git-version-gen. Use AM_SILENT_RULES([yes]). (AM_INIT_AUTOMAKE): Drop gnits; conflicts with git-version-gen versions. * bootstrap.conf (gnulib_modules): Use getopt-gnu Ensure ChangeLog exists, for automake. rather than obsolete "getopt" module. Add gitlog-to-changelog. Add git-version-gen. Add gnu-make, gnumakefile and maintainer-makefile. * Makefile.am (dist-hook, gen-ChangeLog): New rules, to generate ChangeLog and insert it into the distribution tarball. (EXTRA_DIST): Add ChangeLog-2007. maint: retire the last VC'd ChangeLog file * ChangeLog-2007: Rename from ChangeLog. From now on, the ChangeLog file will be generated automatically from commit logs. maint: rename .cvsignore files to .gitignore * .gitignore: Renamed from .cvsignore. * doc/.gitignore: Likewise. * lib/.gitignore: Likewise. * m4/.gitignore: Likewise. PK uZ!\j0��� � TODOnu �[��� PK uZ!\�ȜY�_ �_ � NEWSnu �[��� PK uZ!\O�μb b �m AUTHORSnu �[��� PK uZ!\�l H�3 �3 Wn THANKSnu �[��� PK uZ!\�&��� � f� READMEnu �[��� PK uZ!\��9��� �� �� ChangeLognu �[��� PK � pv
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