changelog

gzip1.2.4源码

Wed Aug 18 09:34:23 1993  Jean-loup Gailly  ([e-mail])

	* version 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.
	Added makefile entries for NeXTstep 3.1 (if configure fails)
	Avoid problem with memcpy on Pyramid (gave crc error on some files)
	Support the -r option when compiled with Borland C++ on msdos.
	Force lower case file names only for FAT file systems (not HPFS)
	Rewrite one expression in inflate.c to avoid cc bug on Solaris x86.
	In the msdos makefiles, get match.asm from the msdos subdirectory.
	Catch SIGTERM and SIGHUP only if they are not ignored.
        getopt.c: on Amiga, "#if !defined(const)" does not compile.
	Use register parameters on Amiga.
	Do not force names to lower case on Amiga.
	Fix support of Atari TOS (Makefile.st and tailor.h)
	In unlzw.c, do not suggest using zcat if zcat already used.
	In INSTALL, suggest using bsdinst for HPUX.
	Document Turbo C++ 1.0 bug in INSTALL.
	Improved the documentation relative to the --no-name option.
	Avoid signed/unsigned warnings in several files.
	Added pointer to jka-compr19.el in README.
	Added pointer to OS/2 executables in README.
	Added --block-compress in tar -z example (gzip.1 and gzip.texi).
	Don't keep rcsid in executable (avoid compilation warnings).
	Check also the correctness of the first byte of an .Z file.
	Return non zero status for an invalid option.
        Remove "NEWFILES" from os2/gzip.def for Borland C++ on OS/2.
	Remove "time stamp restored" message (just obey the -N request).

Thu Jun 24 10:27:57 1993  Jean-loup Gailly  ([e-mail])

	* version 1.2.3
	Don't display the output name when decompressing except with --verbose.
	Remove usage of alloca in getopt.c and all makefiles.
	Use ASCPP instead of CPP to avoid breaking AC_HEADER_CHECK on RiscOS.
        Added the zfile shell script in subdirectory sample.
	Moved the list of compiler bugs from README to INSTALL.
	Added vms/Readme.vms.
	Fix DIST_BUFSIZE check in unlzh.c for 16 bit machines.
	Fix REGSIGTYP macro in configure.in.
	Use 'define' instead of == in vms/gzip.hlp.
	Avoid warnings in unlzh.c
	Allow separate installation of binaries and man pages.
	Simplified handling of file names with spaces in zgrep and znew.
	Fix dependencies and remove rule for trees.c in amiga/Makefile.sasc
	Add missing quote in gzexe.

Thu Jun 17 13:47:05 1993  Jean-loup Gailly  ([e-mail])

	* version 1.2.2
	Fix a compilation error in gzip.c on Sun with cc (worked with gcc).

Wed Jun 16 11:20:27 1993  Jean-loup Gailly  ([e-mail])

	* version 1.2.1
	 Let zmore act as more if the data is not gzipped.
         By default, display output name only when name was actually truncated.
	 Use absolute path names in gzexe'd programs for better security.
	 In gzexe, use chmod 700 instead of 755 and don't gzexe tail,rm,etc...
	 Update vms/gzip.hlp.
	 Added a note about the fast options (-1 to -3) in algorithm.doc.
	 Improved man page for zgrep.
	 Minor fixes to gzip.texi.
	 Always set LC_ALL and LANG in configure (for tr on HPUX)

Mon Jun 14 10:03:24 1993  Jean-loup Gailly  ([e-mail])

	* version 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..
	 Supress warnings about suffix for gunzip -r, except with --verbose.
	 Moved the sample programs to a subdirectory sample.
	 On MSDOS, use .gz extension when possible (files without extension)
	 Added a "Special targets" section in INSTALL.
	 Use stty -g correctly in zmore.in.
	 Use cheaper test for gzipness in zforce.in.
	 Remove space before $ in match.S (no longer accepted by gas 2.x)
	 For the shell scripts, do not assume that gzip is in the path.
	 Fix syntax error and define lnk$library in vms/Makefile.mms
	 REGSIGTYPE is void on the Amiga.
	 Do not write empty line when decompressing stdin with --verbose.
	 Fix the 1.1.2 fix for VMS (bug in get_suffix)
	 Added warning in README about compiler bug on Solaris 2.1 for x86.
	 Added warning about 'rehash' in INSTALL.
	 Removed default value of read_buf in bits.c (supermax doesn't like).
	 In tailor.h, added support for Borland C and Zortech C on OS/2.
	 Added warning in gzexe about Ultrix buggy sh (use /bin/sh5 instead).
	 Added warning in zdiff about AIX buggy sh (use /bin/ksh instead).
	 In configure.in, do not try the asm code if DEFS contains NO_ASM

Fri Jun  4 09:49:33 1993  Jean-loup Gailly  ([e-mail])

	* version 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.
	 Add warning in README about bug in Concentrix cc compiler.
	 Avoid || in Makefile.in (at least one make doesn't support this).
	 Disable useless --ascii option for the Amiga.
	 Add a pointer to the Primos executable in README.
	 Added description of extra field in algorithm.doc.
	 Do not redefine NULL in alloca.c.
	 Added check for unsupported compression methods.
	 Avoid getopt redeclaration on OSF/1.

Tue Jun  1 09:07:15 1993  Jean-loup Gailly  ([e-mail])

	* version 1.1.1
	 Fix serious bug in vms.c (== instead of =).
	 Added --ascii option.
	 Add workaround in configure.in for Ultrix (quote eval argument)
	 Do not use unset in znew (not supported on Ultrix)
	 Use tar.gz instead of tar.z for the distribution of gzip.
	 Add missing menu item in gzip.texi.
	 Use size_t instead of unsigned, add AC_SIZE_T in configure.in.

Fri May 28 11:40:01 1993  Jean-loup Gailly  ([e-mail])

	* version 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 sub.c and add.c for compression of 8 bit images.
	 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.
	 Quit after --version (GNU standard)
	 Use --force to bypass isatty() check.
	 Accept --silent as synonym for --quiet (see longopts.table)
	 Accept --to-stdout as synonym for --stdout (see longopts.table)
	 Accept -H and -? in addition to -h and --help.
	 Added comparison of zip and gzip in the readme file.
	 Return an error code in all main compression/decompression functions.
	 Continue processing other files in case of recoverable error.
	 Add description of -f in znew.1.
	 Do not keep uncompressed version for znew -t if .gz already exists.
	 On Unix, use only st_ino and st_dev in same_file().
	 Use S_IRUSR and S_IWUSR if they exist.
	 "test $1 = -d" -> "test x$1 = x-d" in gzexe.
	 In match.S, use symbol sysV68 to detect the Motorola Delta.
	 Do not include memory.h with gcc (conflicting declarations on Sun).
	 Fix more typos.
	 On VMS, define unlink as delete also for gcc.
	 In "make check", unset LANG because "wc -c" fails on Kanji.
	 Renamed shdir as scriptdir.
	 Use the 68020 code instead of 68000 code on the NeXT.
	 Documented --uncompress as synonym for --decompress.
	 Include the standard header files before gzip.h (needed on Bull).
	 Do not assume that _POSIX_VERSION implies dirent.h present.
	 Removed gzip-tar.patch since tar 1.11.2 handles gzip directly.
	 Use less memory when compiled with -DSMALL_MEM (for MSDOS).
	 Optimized updcrc().
	 Don't complain if cc -E does not work correctly.
	 Do not attempt reading 64K bytes on 16 bit Unix systems.
	 Do not use the variable name 'overhead' which is reserved on Lynx!
	 One BULL compiler does not like *p++ in inflate.c => *p, p++.
	 Use casts on free and memcmp to avoid warnings.
         Remove the "off by more than one minute" time stamp kludge, but
           document how to avoid saving the time stamp on pipes if desired.
	 Include crypt.h in inflate.c (one system predefines the CRYPT symbol).
	 Add links to gunzip and (g)zcat in the default make rule.
         Create installation directories if they do not exist.
	 Clarified --prefix option in INSTALL.
	 Use symbol mc68k in match.S for the DIAB DS90.
	 Guard against zero length _match.s in configure.in.
	 In zmore, restore all tty options using stty -g.
	 Added support for MacOS
	 Simplified makecrc.c.
	 Avoid warnings in getopt.c, util.c, unlzw.c.
	 Use autoconf 1.4, in particular for INSTALL and AC_HAVE_POUNDBANG
	 Use .so instead of hard links for zcat.1, gunzip.1 and zcmp.1.
	 Fixed declration of sig_type.
	 Make consistency check in fcfree.
	 Added ztouch.
	 Do not complain if utime fails on a directory (for OS/2).

Thu Mar 18 18:56:43 1993  Jean-loup Gailly  ([e-mail])

	* version 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.
	  Give a pointer to Solaris and VMS executables of gzip in README.
	  Allow installation of binaries and shell scripts in different dirs.
	  Do not use alloca on the Cray.
	  Provide strspn and strcspn if string.h does not exist.
	  Define O_CREAT and O_EXCL from FCREAT and FEXCL if necessary.
	  Remove gzip.doc in make realclean.
	  Fixed many typos. (Corrections to my English are welcome.)
	  Put "make manext=l install" at the correct place in INSTALL.
	  Fix incorrect examples in INSTALL and give more examples.
	  Include zdiff.1 for install and uninstall.
	  Allows complex PAGER variable in zmore (e.g.: PAGER="col -x | more")
	  Avoid warning on unused indfound in getopt.c.
	  Cast memset arg to void* (required by some buggy compilers).
	  Include sys/types.h before dirent.h in acgeneral.m4.
	  Fix acgeneral.m4 AC_COMPILE_CHECK to avoid warnings.
	  Don't use alloca.c with gcc. (One NeXT user did not have alloca.h).
	  Change all error messages according to GNU standards.
	  Restore time stamp only if off by more than one minute.
	  Allow installation of zcat as gzcat.
	  Suppress help message  and send compressed data to the terminal when
	    gzip is invoked without parameters and without redirection.
	   (Explicit request from Noah Friedman.)
	  Add compile option GNU_STANDARD to respect the GNU coding standards:
	    with -DGNU_STANDARD, behave as gzip even if invoked under the
	    name gunzip. (Complaints to /dev/null or the FSF, not to me!)

Fri Mar 10 13:27:18 1993  Jean-loup Gailly  ([e-mail])

	* version 1.0.6
	  Let gzexe detect executables that are already gzexe'd.
	  Don't try restoring record format on VMS (the simple 1.0.5 code
	    worked correctly only on fixed-512 files). Suppress text_mode.
	  Added asm version for 68000 in amiga/match.a.
	  Use asm version for Atari TT.
	  Fix "make clean" in vms/Makefile.vms.
	  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.
	  Added zdiff.1
	  Remove configure hack for NeXT; add general fix to autoconf instead
	  Do not strip a ".z" extension if this results in an empty name.
	  Avoid array overflow in get_prefix() for extensions > 10 chars.
	  Accept either q or e to quit zmore.
	  In zmore, try restoring tty mode in all cases.
	  Use Motorola style for match.S on the NeXT.
	  configure.in: unsetenv *hangs* with the Siemens csh...
	  Update vms/gzip.hlp.

Thu Mar 4 14:13:34 1993  Jean-loup Gailly  ([e-mail])

	* version 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).
	  Use "-z" suffix for VMS.
	  Use only .z, .*-z, .tgz, .taz as valid gzip extensions; update
	   zforce accordingly.
	  Allow a version number in input file names for VMS.
	  Added sample program zread.c.
	  Fix "make check" for some implementations of /bin/sh.
	  Don't rely on stat() for filenames with extension > 3 chars
	    on MSDOS, OS2 and Atari.
	  Garbage collect files in /tmp created by gzexe.
	  Quote $opt in znew.
	  Use TOUCH env variable in znew if it exists.
	  Better error message for gunzip on empty or truncated file.
	  Allow prototypes in getopt.h when __STDC__ defined but 0.
	  Added "make clean" in vms/Makefile.vms.
	  Removed -g from default CFLAGS (with Noah's permission!)
	  Avoid too many HAVE_xxx_H for most systems; use common defaults.
	  Moved default Atari flags into tailor.h for consistency.
	  Use memzero() to clear the hash table.
	  Update vms/gzip.hlp to reflect the VMS behavior.
	  Fix OS_CODE (to fit in a byte).
	  Add utime.h for the Amiga.
	  Add gcc support for the Amiga.