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authordelphij <delphij@FreeBSD.org>2007-01-31 03:44:42 +0000
committerdelphij <delphij@FreeBSD.org>2007-01-31 03:44:42 +0000
commit6a5f85cc030c502d460578a6a930055078e14873 (patch)
treeeb2cb9e99b662e09f9d924a389597c9b2f6def1d
parent46fdc358605f652491075368ed48c4ffe9af8a85 (diff)
downloadFreeBSD-src-6a5f85cc030c502d460578a6a930055078e14873.zip
FreeBSD-src-6a5f85cc030c502d460578a6a930055078e14873.tar.gz
Remove GNU gzip left-offs, they are no longer necessary.
-rw-r--r--gnu/usr.bin/gzip/COPYING339
-rw-r--r--gnu/usr.bin/gzip/ChangeLog587
-rw-r--r--gnu/usr.bin/gzip/Makefile37
-rw-r--r--gnu/usr.bin/gzip/NEWS221
-rw-r--r--gnu/usr.bin/gzip/README144
-rw-r--r--gnu/usr.bin/gzip/THANKS276
-rw-r--r--gnu/usr.bin/gzip/TODO58
-rw-r--r--gnu/usr.bin/gzip/algorithm.doc164
-rw-r--r--gnu/usr.bin/gzip/bits.c205
-rw-r--r--gnu/usr.bin/gzip/crypt.c6
-rw-r--r--gnu/usr.bin/gzip/crypt.h12
-rw-r--r--gnu/usr.bin/gzip/deflate.c763
-rw-r--r--gnu/usr.bin/gzip/gzexe158
-rw-r--r--gnu/usr.bin/gzip/gzexe.143
-rw-r--r--gnu/usr.bin/gzip/gzip.1479
-rw-r--r--gnu/usr.bin/gzip/gzip.c1758
-rw-r--r--gnu/usr.bin/gzip/gzip.h320
-rw-r--r--gnu/usr.bin/gzip/inflate.c958
-rw-r--r--gnu/usr.bin/gzip/lzw.c26
-rw-r--r--gnu/usr.bin/gzip/lzw.h42
-rw-r--r--gnu/usr.bin/gzip/match.S379
-rw-r--r--gnu/usr.bin/gzip/revision.h16
-rw-r--r--gnu/usr.bin/gzip/tailor.h328
-rw-r--r--gnu/usr.bin/gzip/trees.c1075
-rw-r--r--gnu/usr.bin/gzip/unlzh.c405
-rw-r--r--gnu/usr.bin/gzip/unlzw.c377
-rw-r--r--gnu/usr.bin/gzip/unpack.c238
-rw-r--r--gnu/usr.bin/gzip/unzip.c205
-rw-r--r--gnu/usr.bin/gzip/util.c456
-rw-r--r--gnu/usr.bin/gzip/zdiff71
-rw-r--r--gnu/usr.bin/gzip/zdiff.144
-rw-r--r--gnu/usr.bin/gzip/zforce38
-rw-r--r--gnu/usr.bin/gzip/zforce.118
-rw-r--r--gnu/usr.bin/gzip/zgrep72
-rw-r--r--gnu/usr.bin/gzip/zgrep.144
-rw-r--r--gnu/usr.bin/gzip/zgrep.getopt94
-rw-r--r--gnu/usr.bin/gzip/zgrep.libz18
-rw-r--r--gnu/usr.bin/gzip/zip.c117
-rw-r--r--gnu/usr.bin/gzip/zmore52
-rw-r--r--gnu/usr.bin/gzip/zmore.1147
-rw-r--r--gnu/usr.bin/gzip/znew150
-rw-r--r--gnu/usr.bin/gzip/znew.139
42 files changed, 0 insertions, 10979 deletions
diff --git a/gnu/usr.bin/gzip/COPYING b/gnu/usr.bin/gzip/COPYING
deleted file mode 100644
index a43ea21..0000000
--- a/gnu/usr.bin/gzip/COPYING
+++ /dev/null
@@ -1,339 +0,0 @@
- GNU GENERAL PUBLIC LICENSE
- Version 2, June 1991
-
- Copyright (C) 1989, 1991 Free Software Foundation, Inc.
- 675 Mass Ave, Cambridge, MA 02139, USA
- Everyone is permitted to copy and distribute verbatim copies
- of this license document, but changing it is not allowed.
-
- Preamble
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- The licenses for most software are designed to take away your
-freedom to share and change it. By contrast, the GNU General Public
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- GNU GENERAL PUBLIC LICENSE
- TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
-
- 0. This License applies to any program or other work which contains
-a notice placed by the copyright holder saying it may be distributed
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-Software Foundation. If the Program does not specify a version number of
-this License, you may choose any version ever published by the Free Software
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- NO WARRANTY
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- 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
-FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN
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-REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
-INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
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-TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
-YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
-PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
-POSSIBILITY OF SUCH DAMAGES.
-
- END OF TERMS AND CONDITIONS
-
- Appendix: How to Apply These Terms to Your New Programs
-
- If you develop a new program, and you want it to be of the greatest
-possible use to the public, the best way to achieve this is to make it
-free software which everyone can redistribute and change under these terms.
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- To do so, attach the following notices to the program. It is safest
-to attach them to the start of each source file to most effectively
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-the "copyright" line and a pointer to where the full notice is found.
-
- <one line to give the program's name and a brief idea of what it does.>
- Copyright (C) 19yy <name of author>
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-
-Also add information on how to contact you by electronic and paper mail.
-
-If the program is interactive, make it output a short notice like this
-when it starts in an interactive mode:
-
- Gnomovision version 69, Copyright (C) 19yy name of author
- Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
- This is free software, and you are welcome to redistribute it
- under certain conditions; type `show c' for details.
-
-The hypothetical commands `show w' and `show c' should show the appropriate
-parts of the General Public License. Of course, the commands you use may
-be called something other than `show w' and `show c'; they could even be
-mouse-clicks or menu items--whatever suits your program.
-
-You should also get your employer (if you work as a programmer) or your
-school, if any, to sign a "copyright disclaimer" for the program, if
-necessary. Here is a sample; alter the names:
-
- Yoyodyne, Inc., hereby disclaims all copyright interest in the program
- `Gnomovision' (which makes passes at compilers) written by James Hacker.
-
- <signature of Ty Coon>, 1 April 1989
- Ty Coon, President of Vice
-
-This General Public License does not permit incorporating your program into
-proprietary programs. If your program is a subroutine library, you may
-consider it more useful to permit linking proprietary applications with the
-library. If this is what you want to do, use the GNU Library General
-Public License instead of this License.
diff --git a/gnu/usr.bin/gzip/ChangeLog b/gnu/usr.bin/gzip/ChangeLog
deleted file mode 100644
index 7dd0f86..0000000
--- a/gnu/usr.bin/gzip/ChangeLog
+++ /dev/null
@@ -1,587 +0,0 @@
-Wed Aug 18 09:34:23 1993 Jean-loup Gailly (jloup@chorus.fr)
-
- * 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 (jloup@chorus.fr)
-
- * 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 (jloup@chorus.fr)
-
- * 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 (jloup@chorus.fr)
-
- * 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 (jloup@chorus.fr)
-
- * 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 (jloup@chorus.fr)
-
- * 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 (jloup@chorus.fr)
-
- * 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 (jloup@chorus.fr)
-
- * 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 (jloup@chorus.fr)
-
- * 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 (jloup@chorus.fr)
-
- * 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 (jloup@chorus.fr)
-
- * 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.
- Work around incorrect dirent.h for NeXT 2.0.
- Added Makefile entry for Coherent.
-
-Fri Feb 22 11:20:49 1993 Jean-loup Gailly (jloup@chorus.fr)
-
- * version 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 'stty min 1' in zmore for SysV and fixed trap code.
- Suppress .PHONY in Makefile.in, which breaks old makes.
- Added documentation about pcat and unpack in INSTALL.
- Add cast to getenv for systems without stdlib.h.
- Use VAXC instead of VMS to avoid confusion for gcc.
- Add -K to znew.1.
- Add gzexe.1.
- Try preserving file permissions in gzexe.
- Added -d option for gzexe.
- Guard against spaces in file names in gzexe.
- Use CMP env. variable in zcmp.
- Return a warning exit status for gzip of file with .z suffix.
- Suppress usage of d_ino which is not portable to all systems.
- Use #ifdef instead of #if for consistency.
- For VMS, use "cc util.c" instead of "cc util" (pb with logical names)
- Added utime() for Amiga.
- Renamed gzcat.1 as zcat.1.
- Include fcntl.h for Amiga (for read and write).
- For VMS, add definition of symbols and links in the makefiles.
- Give a VMS look to vms/gzip.hlp.
- Save the original name only when necessary.
- Add a mode parameter for open in read mode (required by VMS).
- For VMS, remove the version suffix from the original name.
- Accept both / and \ as path separator for MSDOS.
- Let gunzip extract stored .zip files correctly.
- Added warning about VFC format in vms/gzip.hlp.
- In znew, skip a bad file but process the others.
- Cleanup tailor.h.
- Use GZIP_OPT for VMS to avoid conflict with program name.
- Added description of GZIP variable in gzip.texi.
-
-Thu Feb 11 17:21:32 1993 Jean-loup Gailly (jloup@chorus.fr)
-
- * version 1.0.3
- Add -K option for znew to keep old .Z files if smaller.
- Add -q option (quiet) to cancel -v in GZIP env variable.
- For Turbo C, normalize pointers before freeing them.
- Add more safety checks in add_envopt().
- Add do_exit() for uniform exit path (always free memory).
- Reduce MAX_PATH_LEN for MSDOS.
- Include sys/types.h before signal.h
- Avoid strdup, the NeXT does not have it.
- Made gzexe safer on systems with filename limitation to 14 chars.
-
-Fri Feb 10 09:45:49 1993 Jean-loup Gailly (jloup@chorus.fr)
-
- * version 1.0.2
- Added env variable GZIP for default options.
- Added support for the Amiga.
- znew now keeps the old .Z if it is smaller than the .z file.
- Added gzexe to compress rarely used executables.
- Reduce memory usage when using static allocation (no DYN_ALLOC).
- Better separation of warning and error return codes.
- Fix unlzw.c to make DYN_ALLOC and MAXSEG_64K independent options.
- Allow INBUFSIZ to be >= 32K in unlzw (don't use sign of rsize)
- Generate tar file in old format to avoid problems with old systems.
- Preserve time stamp in znew -P if touch -r works.
- Use ${PAGER-more} instead of ${PAGER:-more} in zmore.
- Do not use unsigned instead of mode_t.
- Better error message for trailing garbage in .z file; ignore this
- garbage on VMS.
- In zmore, use icanon instead of -cbreak on SYSV.
- Add trap handler in zmore.
- Use char* instead of void* for non STDC compilers.
- Added makefile entry for Xenix on 286.
- Return an error code when existing file was not overwritten.
- Use prototype of lzw.h for lzw.c.
- Fix znew with -P option alone.
- Give warning for directories even without -v.
- Close output file before unlink() in case of error.
- Suppress all target dependent ifdef from the portable files.
- Free all dynamically allocated variables upon exit.
-
-Thu Feb 4 18:23:56 1993 Jean-loup Gailly (jloup@chorus.fr)
-
- * version 1.0.1
- Fixed some trivial errors in msdos/Makefile.bor
-
-Thu Feb 4 10:00:59 1993 Jean-loup Gailly (jloup@chorus.fr)
-
- * version 1.0
- gzip now runs on Vax/VMS (Amiga support will come in next version).
- Do not overwrite files without -f when using /bin/sh.
- Support the test option -t for compressed (.Z) files.
- Flush output for bad compressed files. Add warning in README.
- Added makefiles for MSDOS.
- Don't rely on presence of csh in configure
- Added gunzip.1 and gzcat.1.
- Updated znew.1.
- Check reserved flags in unlzw().
- Return dummy value in main to avoid lint warning.
- Define OF in lzw.h for lint.
- Allow both "znew -v -t" and "znew -vt".
- Don't overwrite the output file name for multiple parts.
- Echo just a warning if configure is out of date.
- Use ; instead of , in trees.c (confuses the SAS Amiga compiler).
- In INSTALL, document "DEFS='-DM_XENIX' ./configure".
- Use OTHER_PATH_SEP for more portability (DOS, OS2, VMS, AMIGA).
- Make all directories world writable for broken versions of tar.
- Use gzip -cd instead of zcat in zmore, zcmp, zdiff.
- Don't use GNU tar for distributions, some systems can't untar.
- Do not exit() for gzip --version.
-
-Mon Jan 26 10:26:42 1993 Jean-loup Gailly (jloup@chorus.fr)
-
- * Beta version 0.8.2
- Avoid 'far' declarations for MSDOS.
- Use test -f instead of test -x in configure.in (for Ultrix)
- Add empty else part to if in Makefile.in for broken shells.
- Use NO_UNDERLINE instead of UNDERLINE (pb with Linux cpp)
- Accept continuation files with -ff (for damage recovery)
- Small patch to Makefile.os2
- Use memzero instead of bzero to avoid potential conflicts
- Document restriction on extraction of zip files.
- Fix quoting in ACL_HAVE_SHELL_HACK.
- Do not check file size on MSDOS because of bug in DIET.
- Allow zcat on a file with multiple links.
- Add fix in inflate.c for compatibility with pkzip 2.04c.
- Release gzip in tar.z and tar format. (No tar.Z).
-
-Fri Jan 22 10:04:13 1993 Jean-loup Gailly (jloup@chorus.fr)
-
- * Beta version 0.8.1
- Fixed Makefile.os2
- Fixed #if directives that TurboC does not like.
- Don't rely on uncompress in znew, use gzip -d.
- Add the pipe option -P in znew.
- Add some more ideas in TODO.
- Support both NDIR and SYSNDIR.
-
-Sat Jan 21 15:46:38 1993 Jean-loup Gailly (jloup@chorus.fr)
-
- * Beta version 0.8
- Support unpack.
- Check for _match.o in configure.in in addition to return status.
- Include <sys/types.h> in zip.c
- Define local variables and functions as local.
- Accept more alternative names for the program (pcat, gzcat, ...).
- Accept .exe as well as .EXE.
- Uncompress files with multiple links only with -f.
- Better error message for gunzip of non-existent file.z.
- Fix the entry for /etc/magic in INSTALL.
- Use AC_HAVE_HEADERS uniformly instead of special macros.
- Install the man pages as .1 by default instead of .l.
- Document crypt++.el in README.
- Fix for unlzw() on 16-bit machines (bitmask must be unsigned).
- Complain if input and output files are identical.
- Create a correct output name for files of exactly 13 chars.
- Do not overwrite CPP if set
- Check for i386 before trying to assemble match.s
- Check for underline in external name before assembling
- Add patch for tar 1.11.1.
-
-Mon Jan 5 10:16:24 1993 Jean-loup Gailly (jloup@chorus.fr)
-
- * Beta version 0.7
- Use "make check" instead of "make test".
- Do not rely on dirname in znew.
- Keep time stamp and pass options to gzip in znew.
- Rename .l files back to .1 to avoid conflict with lex
- Do not create .z.z files with gzip -r.
- Use nice_match in match.asm
- Unroll loops in deflate.c
- Do not attempt matches beyond the window end
- Allow again gunzip .zip files (was working in 0.5)
- Allow again compilation with TurboC 2.0 (was working in 0.4)
-
-Tue Dec 30 20:00:19 1992 Jean-loup Gailly (jloup@chorus.fr)
-
- * Beta version 0.6
- The .z extension is used by pack, not compact (README, gzip.1)
- Accept gzcat in addition to zcat.
- Use PAGER in zmore if defined.
- Man pages for /usr/local/man/manl should have extension .l.
- Don't redefine bzero on the NeXT
- Allow incomplete Huffman table if there is only one code.
- Don't lookahead more than 7 bits (caused premature EOF).
- Added "make test" to check for compiler bugs.
- Don't rely on `i386`; try to assemble directly
- Change magic header to avoid conflict with freeze 1.x.
- Added entry for /etc/magic in INSTALL.
- Do not destroy an input .zip file with more than one member.
- Display "untested" instead of "OK" for gzip -t foo.Z
- With -t, skip stdin in .Z format
- Allow multiple compressed members in an input file.
- Ignore a zero time stamp.
- Made znew safer.
-
-Tue Dec 29 10:00:19 1992 Noah Friedman (friedman@gnu.ai.mit.edu)
-
- Added test for #!/bin/sh in configure.in.
- Fix some references to $srcdir in Makefile.in
-
-Mon Dec 21 17:33:35 1992 Jean-Loup Gailly (jloup@chorus.fr)
-
- * Beta version 0.5
- Put RCS ids in all files.
- Added znew to recompress old .Z files with gzip.
- Avoid "already .z suffix" messages for -r and no -v.
- Put back check for d_ino in treat_dir().
- Use HAVE_STRING_H instead of USG.
- Added os2/Makefile.os2
- Use SYSUTIME on OS/2.
- Info dir is $(prefix)/info, not $(prefix)/lib/info.
- Support long options, added getopt and alloca
- Support -V and -t
- Reorder configure.in according to suggestions in autoconf.info
- Allow links when not removing original file
- Allow either .z or .Z in zdiff
-
-Wed Nov 25 11:40:04 1992 Jean-loup Gailly (jloup@chorus.fr)
-
- * Beta version 0.4.1
- Save only the original base name, don't include any directory prefix.
- Don't use HAVE_LONG_FILE_NAMES (support multiple file system types).
- Fix declaration of abort_gzip in gzip.h.
- Include unistd.h when it exists to avoid warnings with gcc -Wall.
-
-Mon Nov 23 12:39:01 1992 Jean-loup Gailly (jloup@chorus.fr)
-
- * Beta version 0.4
- Lots of cleanup
- Use autoconf generated 'configure'
- Fixed the NO_MULTIPLE_DOTS code
- Fixed the save_orig_name code
- Support for MSDOS (Turbo C)
-
-Thu Nov 19 15:18:22 1992 Jean-loup Gailly (jloup@chorus.fr)
-
- * Beta version 0.3
- Added auto configuration. Just type "make" now.
- Don't overwrite compress by default in "make install". Use
- "make install_compress" to overwrite.
- Add match.s for 386 boxes.
- Added documentation in texinfo format.
- Provide help for "gunzip" invoked without redirected input.
- Save original file name when necessary.
- Support OS/2 (Kai-Uwe Rommel).
-
-Tue Nov 17 14:32:53 1992 Jean-loup Gailly (jloup@chorus.fr)
-
- * Alpha version 0.2.4
- Return 0 in get_istat() when ok (caused error with zcat).
- Don't update crc on compressed data (caused crc errors on
- large files).
-
-Fri Nov 13 15:04:12 1992 Jean-loup Gailly (jloup@chorus.fr)
-
- * Alpha version 0.2.3
- Initialize rsize in unlzw.c
- Initialize ofd for zcat.
- Do not use volatile ifname as argument of treat_dir.
- Add -1 to -9 in gzip.1.
-
-Sat Oct 31 18:30:00 1992 Jean-loup Gailly (jloup@chorus.fr)
-
- * Alpha version 0.2.2.
- Fix error messages.
- Accept gunzip on zip files.
-
-Sat Oct 31 17:15:00 1992 Jean-loup Gailly (jloup@chorus.fr)
-
- * Alpha version 0.2.1
- Use ctype.h in util.c (problem on SysV).
- Create BINDIR if it does not exist.
- Use cc by default.
- Added zcmp, zmore, zdiff.
- Fixed the man page gzip.1.
-
-Sat Oct 31 17:00:00 1992 Jean-loup Gailly (jloup@chorus.fr)
-
- * Alpha version 0.2
- Fixed compilation problems with gcc
-
-Sat Oct 31 12:46:00 1992 Jean-loup Gailly (jloup@chorus.fr)
-
- * Alpha version 0.1 released (under time pressure), so it's not
- much tested, sorry.
-
diff --git a/gnu/usr.bin/gzip/Makefile b/gnu/usr.bin/gzip/Makefile
deleted file mode 100644
index 9d30300..0000000
--- a/gnu/usr.bin/gzip/Makefile
+++ /dev/null
@@ -1,37 +0,0 @@
-# @(#)Makefile 5.3 (Berkeley) 5/12/90
-# $FreeBSD$
-
-PROG= gzip
-SRCS= gzip.c zip.c deflate.c trees.c bits.c unzip.c inflate.c util.c \
- crypt.c lzw.c unlzw.c unlzh.c unpack.c
-CFLAGS+=-DSTDC_HEADERS=1 -DHAVE_UNISTD_H=1 -DDIRENT=1
-.if ${MACHINE_ARCH} == "i386"
-SRCS+= match.S
-CFLAGS+=-DASMV
-.endif
-SCRIPTS=gzexe zdiff zforce zmore znew
-MAN= gzexe.1 gzip.1 zdiff.1 zforce.1 zmore.1 znew.1
-
-LINKS+= ${BINDIR}/gzip ${BINDIR}/gunzip
-LINKS+= ${BINDIR}/gzip ${BINDIR}/gzcat
-LINKS+= ${BINDIR}/gzip ${BINDIR}/zcat
-LINKS+= ${BINDIR}/zdiff ${BINDIR}/zcmp
-MLINKS= gzip.1 gunzip.1 gzip.1 zcat.1 gzip.1 gzcat.1
-MLINKS+= zdiff.1 zcmp.1
-
-GREP_LIBZ?= YES
-.if defined(GREP_LIBZ) && empty(GREP_LIBZ)
-SCRIPTS+=zgrep.getopt
-MAN+= zgrep.1
-LINKS+= ${BINDIR}/zgrep ${BINDIR}/zegrep
-LINKS+= ${BINDIR}/zgrep ${BINDIR}/zfgrep
-MLINKS+= zgrep.1 zfgrep.1 zgrep.1 zegrep.1
-.endif
-
-match.o: ${.CURDIR}/match.S
- $(CC) -E -DNO_UNDERLINE -traditional ${.CURDIR}/match.S >_match.s
- $(CC) -c _match.s
- mv -f _match.o match.o
- rm -f _match.s
-
-.include <bsd.prog.mk>
diff --git a/gnu/usr.bin/gzip/NEWS b/gnu/usr.bin/gzip/NEWS
deleted file mode 100644
index ef5f833..0000000
--- a/gnu/usr.bin/gzip/NEWS
+++ /dev/null
@@ -1,221 +0,0 @@
-Current Version: 1.2.4.
-See the file ChangeLog for the details of all changes.
-
-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..
-* Supress 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" time stamp 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 time stamp 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 time stamp 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.
diff --git a/gnu/usr.bin/gzip/README b/gnu/usr.bin/gzip/README
deleted file mode 100644
index fdd7311..0000000
--- a/gnu/usr.bin/gzip/README
+++ /dev/null
@@ -1,144 +0,0 @@
-This is the file README for the gzip distribution, version 1.2.4.
-
-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 0.5. See the file
-INSTALL for installation instructions. Some answers to frequently
-asked questions are given in the file INSTALL, please read it. (In
-particular, please don't ask me once more for an /etc/magic entry.)
-
-WARNING: on several systems, compiler bugs cause gzip to fail, in
-particular when optimization options are on. See the section "Special
-targets" at the end of the INSTALL file for a list of known problems.
-For all machines, 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:
- Jean-loup Gailly <jloup@chorus.fr>
-
-or, if this fails, to bug-gnu-utils@prep.ai.mit.edu.
-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 package crypt++.el is highly recommended to manipulate gzip'ed
-file from emacs. It recognizes automatically encrypted and compressed
-files when they are first visited or written. It is available via
-anonymous ftp to roebling.poly.edu [128.238.5.31] in /pub/crypt++.el.
-The same directory contains also patches to dired, ange-ftp and info.
-GNU tar 1.11.2 has a -z option to invoke directly gzip, so you don't have to
-patch it. The package ftp.uu.net:/languages/emacs-lisp/misc/jka-compr19.el.Z
-also supports gzip'ed files.
-
-The znew and gzexe shell scripts provided with gzip benefit from
-(but do not require) the cpmod utility to transfer file attributes.
-It is available by anonymous ftp on gatekeeper.dec.com in
-/.0/usenet/comp.sources.unix/volume11/cpmod.Z.
-
-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 are always
-available by ftp in prep.ai.mit.edu:/pub/gnu, or in any of the prep
-mirror sites:
-
-- sources in gzip-*.tar (or .shar or .tar.gz).
-- Solaris 2 executables in sparc-sun-solaris2/gzip-binaries-*.tar
-- MSDOS lha self-extracting exe in gzip-msdos-*.exe. Once extracted,
- copy gzip.exe to gunzip.exe and zcat.exe, or use "gzip -d" to decompress.
- gzip386.exe runs much faster but only on 386 and above; it is compiled with
- djgpp 1.10 available in directory omnigate.clarkson.edu:/pub/msdos/djgpp.
-
-A VMS executable is available in ftp.spc.edu:[.macro32.savesets]gzip-1-*.zip
-(use [.macro32]unzip.exe to extract). A PRIMOS executable is available
-in ftp.lysator.liu.se:/pub/primos/run/gzip.run.
-OS/2 executables (16 and 32 bits versions) are available in
-ftp.tu-muenchen.de:/pub/comp/os/os2/archiver/gz*-[16,32].zip
-
-Some ftp servers can automatically make a tar.Z from a tar file. If
-you are getting gzip for the first time, you can ask for a tar.Z file
-instead of the much larger tar file.
-
-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 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.
-The sources are available by ftp in
-
- oak.oakland.edu:/pub/misc/unix/zip19p1.zip
- oak.oakland.edu:/pub/misc/unix/unz50p1.tar-z
diff --git a/gnu/usr.bin/gzip/THANKS b/gnu/usr.bin/gzip/THANKS
deleted file mode 100644
index 6a545cb..0000000
--- a/gnu/usr.bin/gzip/THANKS
+++ /dev/null
@@ -1,276 +0,0 @@
-gzip was written by Jean-loup Gailly <jloup@chorus.fr>, 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@twinsun.com
-Enami enami@sys.ptg.sony.co.jp
-Kristoffer Eriksson ske@pkmab.se
-Daniel Eriksson m91der@bellatrix.tdb.uu.se
-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-Koepke 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
-Ruediger 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
-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 Koenig win@in.rhein-main.de
-Mathias Koerber 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
-Frederic 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 Muelner hmuelner@fiicmds04.tu-graz.ac.at
-Urban D Mueller umueller@amiga.physik.unizh.ch
-Ulrich Mueller 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
-Yves Perrenoud pyves@nuga.alphanet.ch
-Hal Peterson hrp@pecan.cray.com
-Pascal Petit petit@cadillac.ibp.fr
-Bruno Pillard bp@chorus.fr
-Franc,ois Pinard pinard@iro.umontreal.ca
-Jay Pinkos pinkos@butyng.bu.edu
-Thomas Plass thomas@cogsci.ed.ac.uk
-Mike Polo mikep@cfsmo.honeywell.com
-Francesco Potorti 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
-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 Wuebbeling 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
diff --git a/gnu/usr.bin/gzip/TODO b/gnu/usr.bin/gzip/TODO
deleted file mode 100644
index 865be92..0000000
--- a/gnu/usr.bin/gzip/TODO
+++ /dev/null
@@ -1,58 +0,0 @@
-TODO file for gzip.
-
-Some of the planned features include:
-
-- 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. One problem is that the
- best candidate (lzrw1) is patented twice (Waterworth 4,701,745
- and Gibson & Graybill 5,049,881). The lzrw series of algorithms
- are available by ftp in ftp.adelaide.edu.au:/pub/compression/lzrw*.
-
-- Add a super-tight (but slow) compression method, suitable for long
- term archives. One problem is that the best versions of arithmetic
- coding are patented (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).
-
- 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.
-
-- 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 Jean-loup Gailly <jloup@chorus.fr>.
diff --git a/gnu/usr.bin/gzip/algorithm.doc b/gnu/usr.bin/gzip/algorithm.doc
deleted file mode 100644
index 596faac..0000000
--- a/gnu/usr.bin/gzip/algorithm.doc
+++ /dev/null
@@ -1,164 +0,0 @@
-1. Algorithm
-
-The deflation algorithm used by zip and gzip is a variation of LZ77
-(Lempel-Ziv 1977, see reference below). It finds duplicated strings in
-the input data. The second occurrence of a string is replaced by a
-pointer to the previous string, in the form of a pair (distance,
-length). Distances are limited to 32K bytes, and lengths are limited
-to 258 bytes. When a string does not occur anywhere in the previous
-32K bytes, it is emitted as a sequence of literal bytes. (In this
-description, 'string' must be taken as an arbitrary sequence of bytes,
-and is not restricted to printable characters.)
-
-Literals or match lengths are compressed with one Huffman tree, and
-match distances are compressed with another tree. The trees are stored
-in a compact form at the start of each block. The blocks can have any
-size (except that the compressed data for one block must fit in
-available memory). A block is terminated when zip determines that it
-would be useful to start another block with fresh trees. (This is
-somewhat similar to compress.)
-
-Duplicated strings are found using a hash table. All input strings of
-length 3 are inserted in the hash table. A hash index is computed for
-the next 3 bytes. If the hash chain for this index is not empty, all
-strings in the chain are compared with the current input string, and
-the longest match is selected.
-
-The hash chains are searched starting with the most recent strings, to
-favor small distances and thus take advantage of the Huffman encoding.
-The hash chains are singly linked. There are no deletions from the
-hash chains, the algorithm simply discards matches that are too old.
-
-To avoid a worst-case situation, very long hash chains are arbitrarily
-truncated at a certain length, determined by a runtime option (zip -1
-to -9). So zip does not always find the longest possible match but
-generally finds a match which is long enough.
-
-zip also defers the selection of matches with a lazy evaluation
-mechanism. After a match of length N has been found, zip searches for a
-longer match at the next input byte. If a longer match is found, the
-previous match is truncated to a length of one (thus producing a single
-literal byte) and the longer match is emitted afterwards. Otherwise,
-the original match is kept, and the next match search is attempted only
-N steps later.
-
-The lazy match evaluation is also subject to a runtime parameter. If
-the current match is long enough, zip reduces the search for a longer
-match, thus speeding up the whole process. If compression ratio is more
-important than speed, zip attempts a complete second search even if
-the first match is already long enough.
-
-The lazy match evaluation is not performed for the fastest compression
-modes (speed options -1 to -3). For these fast modes, new strings
-are inserted in the hash table only when no match was found, or
-when the match is not too long. This degrades the compression ratio
-but saves time since there are both fewer insertions and fewer searches.
-
-
-2. gzip file format
-
-The pkzip format imposes a lot of overhead in various headers, which
-are useful for an archiver but not necessary when only one file is
-compressed. gzip uses a much simpler structure. Numbers are in little
-endian format, and bit 0 is the least significant bit.
-A gzip file is a sequence of compressed members. Each member has the
-following structure:
-
-2 bytes magic header 0x1f, 0x8b (\037 \213)
-1 byte compression method (0..7 reserved, 8 = deflate)
-1 byte flags
- bit 0 set: file probably ascii text
- bit 1 set: continuation of multi-part gzip file
- bit 2 set: extra field present
- bit 3 set: original file name present
- bit 4 set: file comment present
- bit 5 set: file is encrypted
- bit 6,7: reserved
-4 bytes file modification time in Unix format
-1 byte extra flags (depend on compression method)
-1 byte operating system on which compression took place
-
-2 bytes optional part number (second part=1)
-2 bytes optional extra field length
-? bytes optional extra field
-? bytes optional original file name, zero terminated
-? bytes optional file comment, zero terminated
-12 bytes optional encryption header
-? bytes compressed data
-4 bytes crc32
-4 bytes uncompressed input size modulo 2^32
-
-The format was designed to allow single pass compression without any
-backwards seek, and without a priori knowledge of the uncompressed
-input size or the available size on the output media. If input does
-not come from a regular disk file, the file modification time is set
-to the time at which compression started.
-
-The time stamp is useful mainly when one gzip file is transferred over
-a network. In this case it would not help to keep ownership
-attributes. In the local case, the ownership attributes are preserved
-by gzip when compressing/decompressing the file. A time stamp of zero
-is ignored.
-
-Bit 0 in the flags is only an optional indication, which can be set by
-a small lookahead in the input data. In case of doubt, the flag is
-cleared indicating binary data. For systems which have different
-file formats for ascii text and binary data, the decompressor can
-use the flag to choose the appropriate format.
-
-The extra field, if present, must consist of one or more subfields,
-each with the following format:
-
- subfield id : 2 bytes
- subfield size : 2 bytes (little-endian format)
- subfield data
-
-The subfield id can consist of two letters with some mnemonic value.
-Please send any such id to jloup@chorus.fr. Ids with a zero second
-byte are reserved for future use. The following ids are defined:
-
- Ap (0x41, 0x70) : Apollo file type information
-
-The subfield size is the size of the subfield data and does not
-include the id and the size itself. The field 'extra field length' is
-the total size of the extra field, including subfield ids and sizes.
-
-It must be possible to detect the end of the compressed data with any
-compression format, regardless of the actual size of the compressed
-data. If the compressed data cannot fit in one file (in particular for
-diskettes), each part starts with a header as described above, but
-only the last part has the crc32 and uncompressed size. A decompressor
-may prompt for additional data for multipart compressed files. It is
-desirable but not mandatory that multiple parts be extractable
-independently so that partial data can be recovered if one of the
-parts is damaged. This is possible only if no compression state is
-kept from one part to the other. The compression-type dependent flags
-can indicate this.
-
-If the file being compressed is on a file system with case insensitive
-names, the original name field must be forced to lower case. There is
-no original file name if the data was compressed from standard input.
-
-Compression is always performed, even if the compressed file is
-slightly larger than the original. The worst case expansion is
-a few bytes for the gzip file header, plus 5 bytes every 32K block,
-or an expansion ratio of 0.015% for large files. Note that the actual
-number of used disk blocks almost never increases.
-
-The encryption is that of zip 1.9. For the encryption check, the
-last byte of the decoded encryption header must be zero. The time
-stamp of an encrypted file might be set to zero to avoid giving a clue
-about the construction of the random header.
-
-Jean-loup Gailly
-jloup@chorus.fr
-
-References:
-
-[LZ77] Ziv J., Lempel A., "A Universal Algorithm for Sequential Data
-Compression", IEEE Transactions on Information Theory", Vol. 23, No. 3,
-pp. 337-343.
-
-APPNOTE.TXT documentation file in PKZIP 1.93a. It is available by
-ftp in ftp.cso.uiuc.edu:/pc/exec-pc/pkz193a.exe [128.174.5.59]
-Use "unzip pkz193a.exe APPNOTE.TXT" to extract.
diff --git a/gnu/usr.bin/gzip/bits.c b/gnu/usr.bin/gzip/bits.c
deleted file mode 100644
index efce391..0000000
--- a/gnu/usr.bin/gzip/bits.c
+++ /dev/null
@@ -1,205 +0,0 @@
-/* bits.c -- output variable-length bit strings
- * Copyright (C) 1992-1993 Jean-loup Gailly
- * This is free software; you can redistribute it and/or modify it under the
- * terms of the GNU General Public License, see the file COPYING.
- */
-
-
-/*
- * PURPOSE
- *
- * Output variable-length bit strings. Compression can be done
- * to a file or to memory. (The latter is not supported in this version.)
- *
- * DISCUSSION
- *
- * The PKZIP "deflate" file format interprets compressed file data
- * as a sequence of bits. Multi-bit strings in the file may cross
- * byte boundaries without restriction.
- *
- * The first bit of each byte is the low-order bit.
- *
- * The routines in this file allow a variable-length bit value to
- * be output right-to-left (useful for literal values). For
- * left-to-right output (useful for code strings from the tree routines),
- * the bits must have been reversed first with bi_reverse().
- *
- * For in-memory compression, the compressed bit stream goes directly
- * into the requested output buffer. The input data is read in blocks
- * by the mem_read() function. The buffer is limited to 64K on 16 bit
- * machines.
- *
- * INTERFACE
- *
- * void bi_init (FILE *zipfile)
- * Initialize the bit string routines.
- *
- * void send_bits (int value, int length)
- * Write out a bit string, taking the source bits right to
- * left.
- *
- * int bi_reverse (int value, int length)
- * Reverse the bits of a bit string, taking the source bits left to
- * right and emitting them right to left.
- *
- * void bi_windup (void)
- * Write out any remaining bits in an incomplete byte.
- *
- * void copy_block(char *buf, unsigned len, int header)
- * Copy a stored block to the zip file, storing first the length and
- * its one's complement if requested.
- *
- */
-
-#include "tailor.h"
-#include "gzip.h"
-#include "crypt.h"
-
-#ifdef DEBUG
-# include <stdio.h>
-#endif
-
-#ifdef RCSID
-static char rcsid[] = "$FreeBSD$";
-#endif
-
-/* ===========================================================================
- * Local data used by the "bit string" routines.
- */
-
-local file_t zfile; /* output gzip file */
-
-local unsigned short bi_buf;
-/* Output buffer. bits are inserted starting at the bottom (least significant
- * bits).
- */
-
-#define Buf_size (8 * 2*sizeof(char))
-/* Number of bits used within bi_buf. (bi_buf might be implemented on
- * more than 16 bits on some systems.)
- */
-
-local int bi_valid;
-/* Number of valid bits in bi_buf. All bits above the last valid bit
- * are always zero.
- */
-
-int (*read_buf) OF((char *buf, unsigned size));
-/* Current input function. Set to mem_read for in-memory compression */
-
-#ifdef DEBUG
- ulg bits_sent; /* bit length of the compressed data */
-#endif
-
-/* ===========================================================================
- * Initialize the bit string routines.
- */
-void bi_init (zipfile)
- file_t zipfile; /* output zip file, NO_FILE for in-memory compression */
-{
- zfile = zipfile;
- bi_buf = 0;
- bi_valid = 0;
-#ifdef DEBUG
- bits_sent = 0L;
-#endif
-
- /* Set the defaults for file compression. They are set by memcompress
- * for in-memory compression.
- */
- if (zfile != NO_FILE) {
- read_buf = file_read;
- }
-}
-
-/* ===========================================================================
- * Send a value on a given number of bits.
- * IN assertion: length <= 16 and value fits in length bits.
- */
-void send_bits(value, length)
- int value; /* value to send */
- int length; /* number of bits */
-{
-#ifdef DEBUG
- Tracev((stderr," l %2d v %4x ", length, value));
- Assert(length > 0 && length <= 15, "invalid length");
- bits_sent += (ulg)length;
-#endif
- /* If not enough room in bi_buf, use (valid) bits from bi_buf and
- * (16 - bi_valid) bits from value, leaving (width - (16-bi_valid))
- * unused bits in value.
- */
- if (bi_valid > (int)Buf_size - length) {
- bi_buf |= (value << bi_valid);
- put_short(bi_buf);
- bi_buf = (ush)value >> (Buf_size - bi_valid);
- bi_valid += length - Buf_size;
- } else {
- bi_buf |= value << bi_valid;
- bi_valid += length;
- }
-}
-
-/* ===========================================================================
- * Reverse the first len bits of a code, using straightforward code (a faster
- * method would use a table)
- * IN assertion: 1 <= len <= 15
- */
-unsigned bi_reverse(code, len)
- unsigned code; /* the value to invert */
- int len; /* its bit length */
-{
- register unsigned res = 0;
- do {
- res |= code & 1;
- code >>= 1, res <<= 1;
- } while (--len > 0);
- return res >> 1;
-}
-
-/* ===========================================================================
- * Write out any remaining bits in an incomplete byte.
- */
-void bi_windup()
-{
- if (bi_valid > 8) {
- put_short(bi_buf);
- } else if (bi_valid > 0) {
- put_byte(bi_buf);
- }
- bi_buf = 0;
- bi_valid = 0;
-#ifdef DEBUG
- bits_sent = (bits_sent+7) & ~7;
-#endif
-}
-
-/* ===========================================================================
- * Copy a stored block to the zip file, storing first the length and its
- * one's complement if requested.
- */
-void copy_block(buf, len, header)
- char *buf; /* the input data */
- unsigned len; /* its length */
- int header; /* true if block header must be written */
-{
- bi_windup(); /* align on byte boundary */
-
- if (header) {
- put_short((ush)len);
- put_short((ush)~len);
-#ifdef DEBUG
- bits_sent += 2*16;
-#endif
- }
-#ifdef DEBUG
- bits_sent += (ulg)len<<3;
-#endif
- while (len--) {
-#ifdef CRYPT
- int t;
- if (key) zencode(*buf, t);
-#endif
- put_byte(*buf++);
- }
-}
diff --git a/gnu/usr.bin/gzip/crypt.c b/gnu/usr.bin/gzip/crypt.c
deleted file mode 100644
index cdbd812..0000000
--- a/gnu/usr.bin/gzip/crypt.c
+++ /dev/null
@@ -1,6 +0,0 @@
-/* crypt.c (dummy version) -- do not perform encryption
- * Hardly worth copyrighting :-)
- */
-#ifdef RCSID
-static char rcsid[] = "$FreeBSD$";
-#endif
diff --git a/gnu/usr.bin/gzip/crypt.h b/gnu/usr.bin/gzip/crypt.h
deleted file mode 100644
index 2a4c203..0000000
--- a/gnu/usr.bin/gzip/crypt.h
+++ /dev/null
@@ -1,12 +0,0 @@
-/* crypt.h (dummy version) -- do not perform encryption
- * Hardly worth copyrighting :-)
- */
-
-#ifdef CRYPT
-# undef CRYPT /* dummy version */
-#endif
-
-#define RAND_HEAD_LEN 12 /* length of encryption random header */
-
-#define zencode
-#define zdecode
diff --git a/gnu/usr.bin/gzip/deflate.c b/gnu/usr.bin/gzip/deflate.c
deleted file mode 100644
index cbc4884..0000000
--- a/gnu/usr.bin/gzip/deflate.c
+++ /dev/null
@@ -1,763 +0,0 @@
-/* deflate.c -- compress data using the deflation algorithm
- * Copyright (C) 1992-1993 Jean-loup Gailly
- * This is free software; you can redistribute it and/or modify it under the
- * terms of the GNU General Public License, see the file COPYING.
- */
-
-/*
- * PURPOSE
- *
- * Identify new text as repetitions of old text within a fixed-
- * length sliding window trailing behind the new text.
- *
- * DISCUSSION
- *
- * The "deflation" process depends on being able to identify portions
- * of the input text which are identical to earlier input (within a
- * sliding window trailing behind the input currently being processed).
- *
- * The most straightforward technique turns out to be the fastest for
- * most input files: try all possible matches and select the longest.
- * The key feature of this algorithm is that insertions into the string
- * dictionary are very simple and thus fast, and deletions are avoided
- * completely. Insertions are performed at each input character, whereas
- * string matches are performed only when the previous match ends. So it
- * is preferable to spend more time in matches to allow very fast string
- * insertions and avoid deletions. The matching algorithm for small
- * strings is inspired from that of Rabin & Karp. A brute force approach
- * is used to find longer strings when a small match has been found.
- * A similar algorithm is used in comic (by Jan-Mark Wams) and freeze
- * (by Leonid Broukhis).
- * A previous version of this file used a more sophisticated algorithm
- * (by Fiala and Greene) which is guaranteed to run in linear amortized
- * time, but has a larger average cost, uses more memory and is patented.
- * However the F&G algorithm may be faster for some highly redundant
- * files if the parameter max_chain_length (described below) is too large.
- *
- * ACKNOWLEDGEMENTS
- *
- * The idea of lazy evaluation of matches is due to Jan-Mark Wams, and
- * I found it in 'freeze' written by Leonid Broukhis.
- * Thanks to many info-zippers for bug reports and testing.
- *
- * REFERENCES
- *
- * APPNOTE.TXT documentation file in PKZIP 1.93a distribution.
- *
- * A description of the Rabin and Karp algorithm is given in the book
- * "Algorithms" by R. Sedgewick, Addison-Wesley, p252.
- *
- * Fiala,E.R., and Greene,D.H.
- * Data Compression with Finite Windows, Comm.ACM, 32,4 (1989) 490-595
- *
- * INTERFACE
- *
- * void lm_init (int pack_level, ush *flags)
- * Initialize the "longest match" routines for a new file
- *
- * ulg deflate (void)
- * Processes a new input file and return its compressed length. Sets
- * the compressed length, crc, deflate flags and internal file
- * attributes.
- */
-
-#include <stdio.h>
-
-#include "tailor.h"
-#include "gzip.h"
-#include "lzw.h" /* just for consistency checking */
-
-#ifdef RCSID
-static char rcsid[] = "$FreeBSD$";
-#endif
-
-/* ===========================================================================
- * Configuration parameters
- */
-
-/* Compile with MEDIUM_MEM to reduce the memory requirements or
- * with SMALL_MEM to use as little memory as possible. Use BIG_MEM if the
- * entire input file can be held in memory (not possible on 16 bit systems).
- * Warning: defining these symbols affects HASH_BITS (see below) and thus
- * affects the compression ratio. The compressed output
- * is still correct, and might even be smaller in some cases.
- */
-
-#ifdef SMALL_MEM
-# define HASH_BITS 13 /* Number of bits used to hash strings */
-#endif
-#ifdef MEDIUM_MEM
-# define HASH_BITS 14
-#endif
-#ifndef HASH_BITS
-# define HASH_BITS 15
- /* For portability to 16 bit machines, do not use values above 15. */
-#endif
-
-/* To save space (see unlzw.c), we overlay prev+head with tab_prefix and
- * window with tab_suffix. Check that we can do this:
- */
-#if (WSIZE<<1) > (1<<BITS)
- error: cannot overlay window with tab_suffix and prev with tab_prefix0
-#endif
-#if HASH_BITS > BITS-1
- error: cannot overlay head with tab_prefix1
-#endif
-
-#define HASH_SIZE (unsigned)(1<<HASH_BITS)
-#define HASH_MASK (HASH_SIZE-1)
-#define WMASK (WSIZE-1)
-/* HASH_SIZE and WSIZE must be powers of two */
-
-#define NIL 0
-/* Tail of hash chains */
-
-#define FAST 4
-#define SLOW 2
-/* speed options for the general purpose bit flag */
-
-#ifndef TOO_FAR
-# define TOO_FAR 4096
-#endif
-/* Matches of length 3 are discarded if their distance exceeds TOO_FAR */
-
-/* ===========================================================================
- * Local data used by the "longest match" routines.
- */
-
-typedef ush Pos;
-typedef unsigned IPos;
-/* A Pos is an index in the character window. We use short instead of int to
- * save space in the various tables. IPos is used only for parameter passing.
- */
-
-/* DECLARE(uch, window, 2L*WSIZE); */
-/* Sliding window. Input bytes are read into the second half of the window,
- * and move to the first half later to keep a dictionary of at least WSIZE
- * bytes. With this organization, matches are limited to a distance of
- * WSIZE-MAX_MATCH bytes, but this ensures that IO is always
- * performed with a length multiple of the block size. Also, it limits
- * the window size to 64K, which is quite useful on MSDOS.
- * To do: limit the window size to WSIZE+BSZ if SMALL_MEM (the code would
- * be less efficient).
- */
-
-/* DECLARE(Pos, prev, WSIZE); */
-/* Link to older string with same hash index. To limit the size of this
- * array to 64K, this link is maintained only for the last 32K strings.
- * An index in this array is thus a window index modulo 32K.
- */
-
-/* DECLARE(Pos, head, 1<<HASH_BITS); */
-/* Heads of the hash chains or NIL. */
-
-ulg window_size = (ulg)2*WSIZE;
-/* window size, 2*WSIZE except for MMAP or BIG_MEM, where it is the
- * input file length plus MIN_LOOKAHEAD.
- */
-
-long block_start;
-/* window position at the beginning of the current output block. Gets
- * negative when the window is moved backwards.
- */
-
-local unsigned ins_h; /* hash index of string to be inserted */
-
-#define H_SHIFT ((HASH_BITS+MIN_MATCH-1)/MIN_MATCH)
-/* Number of bits by which ins_h and del_h must be shifted at each
- * input step. It must be such that after MIN_MATCH steps, the oldest
- * byte no longer takes part in the hash key, that is:
- * H_SHIFT * MIN_MATCH >= HASH_BITS
- */
-
-unsigned int near prev_length;
-/* Length of the best match at previous step. Matches not greater than this
- * are discarded. This is used in the lazy match evaluation.
- */
-
- unsigned near strstart; /* start of string to insert */
- unsigned near match_start; /* start of matching string */
-local int eofile; /* flag set at end of input file */
-local unsigned lookahead; /* number of valid bytes ahead in window */
-
-unsigned near max_chain_length;
-/* To speed up deflation, hash chains are never searched beyond this length.
- * A higher limit improves compression ratio but degrades the speed.
- */
-
-local unsigned int max_lazy_match;
-/* Attempt to find a better match only when the current match is strictly
- * smaller than this value. This mechanism is used only for compression
- * levels >= 4.
- */
-#define max_insert_length max_lazy_match
-/* Insert new strings in the hash table only if the match length
- * is not greater than this length. This saves time but degrades compression.
- * max_insert_length is used only for compression levels <= 3.
- */
-
-local int compr_level;
-/* compression level (1..9) */
-
-unsigned near good_match;
-/* Use a faster search when the previous match is longer than this */
-
-
-/* Values for max_lazy_match, good_match and max_chain_length, depending on
- * the desired pack level (0..9). The values given below have been tuned to
- * exclude worst case performance for pathological files. Better values may be
- * found for specific files.
- */
-
-typedef struct config {
- ush good_length; /* reduce lazy search above this match length */
- ush max_lazy; /* do not perform lazy search above this match length */
- ush nice_length; /* quit search above this match length */
- ush max_chain;
-} config;
-
-#ifdef FULL_SEARCH
-# define nice_match MAX_MATCH
-#else
- int near nice_match; /* Stop searching when current match exceeds this */
-#endif
-
-local config configuration_table[10] = {
-/* good lazy nice chain */
-/* 0 */ {0, 0, 0, 0}, /* store only */
-/* 1 */ {4, 4, 8, 4}, /* maximum speed, no lazy matches */
-/* 2 */ {4, 5, 16, 8},
-/* 3 */ {4, 6, 32, 32},
-
-/* 4 */ {4, 4, 16, 16}, /* lazy matches */
-/* 5 */ {8, 16, 32, 32},
-/* 6 */ {8, 16, 128, 128},
-/* 7 */ {8, 32, 128, 256},
-/* 8 */ {32, 128, 258, 1024},
-/* 9 */ {32, 258, 258, 4096}}; /* maximum compression */
-
-/* Note: the deflate() code requires max_lazy >= MIN_MATCH and max_chain >= 4
- * For deflate_fast() (levels <= 3) good is ignored and lazy has a different
- * meaning.
- */
-
-#define EQUAL 0
-/* result of memcmp for equal strings */
-
-/* ===========================================================================
- * Prototypes for local functions.
- */
-local void fill_window OF((void));
-local ulg deflate_fast OF((void));
-
- int longest_match OF((IPos cur_match));
-#ifdef ASMV
- void match_init OF((void)); /* asm code initialization */
-#endif
-
-#ifdef DEBUG
-local void check_match OF((IPos start, IPos match, int length));
-#endif
-
-/* ===========================================================================
- * Update a hash value with the given input byte
- * IN assertion: all calls to to UPDATE_HASH are made with consecutive
- * input characters, so that a running hash key can be computed from the
- * previous key instead of complete recalculation each time.
- */
-#define UPDATE_HASH(h,c) (h = (((h)<<H_SHIFT) ^ (c)) & HASH_MASK)
-
-/* ===========================================================================
- * Insert string s in the dictionary and set match_head to the previous head
- * of the hash chain (the most recent string with same hash key). Return
- * the previous length of the hash chain.
- * IN assertion: all calls to to INSERT_STRING are made with consecutive
- * input characters and the first MIN_MATCH bytes of s are valid
- * (except for the last MIN_MATCH-1 bytes of the input file).
- */
-#define INSERT_STRING(s, match_head) \
- (UPDATE_HASH(ins_h, window[(s) + MIN_MATCH-1]), \
- prev[(s) & WMASK] = match_head = head[ins_h], \
- head[ins_h] = (s))
-
-/* ===========================================================================
- * Initialize the "longest match" routines for a new file
- */
-void lm_init (pack_level, flags)
- int pack_level; /* 0: store, 1: best speed, 9: best compression */
- ush *flags; /* general purpose bit flag */
-{
- register unsigned j;
-
- if (pack_level < 1 || pack_level > 9) error("bad pack level");
- compr_level = pack_level;
-
- /* Initialize the hash table. */
-#if defined(MAXSEG_64K) && HASH_BITS == 15
- for (j = 0; j < HASH_SIZE; j++) head[j] = NIL;
-#else
- memzero((char*)head, HASH_SIZE*sizeof(*head));
-#endif
- /* prev will be initialized on the fly */
-
- /* Set the default configuration parameters:
- */
- max_lazy_match = configuration_table[pack_level].max_lazy;
- good_match = configuration_table[pack_level].good_length;
-#ifndef FULL_SEARCH
- nice_match = configuration_table[pack_level].nice_length;
-#endif
- max_chain_length = configuration_table[pack_level].max_chain;
- if (pack_level == 1) {
- *flags |= FAST;
- } else if (pack_level == 9) {
- *flags |= SLOW;
- }
- /* ??? reduce max_chain_length for binary files */
-
- strstart = 0;
- block_start = 0L;
-#ifdef ASMV
- match_init(); /* initialize the asm code */
-#endif
-
- lookahead = read_buf((char*)window,
- sizeof(int) <= 2 ? (unsigned)WSIZE : 2*WSIZE);
-
- if (lookahead == 0 || lookahead == (unsigned)EOF) {
- eofile = 1, lookahead = 0;
- return;
- }
- eofile = 0;
- /* Make sure that we always have enough lookahead. This is important
- * if input comes from a device such as a tty.
- */
- while (lookahead < MIN_LOOKAHEAD && !eofile) fill_window();
-
- ins_h = 0;
- for (j=0; j<MIN_MATCH-1; j++) UPDATE_HASH(ins_h, window[j]);
- /* If lookahead < MIN_MATCH, ins_h is garbage, but this is
- * not important since only literal bytes will be emitted.
- */
-}
-
-/* ===========================================================================
- * Set match_start to the longest match starting at the given string and
- * return its length. Matches shorter or equal to prev_length are discarded,
- * in which case the result is equal to prev_length and match_start is
- * garbage.
- * IN assertions: cur_match is the head of the hash chain for the current
- * string (strstart) and its distance is <= MAX_DIST, and prev_length >= 1
- */
-#ifndef ASMV
-/* For MSDOS, OS/2 and 386 Unix, an optimized version is in match.asm or
- * match.s. The code is functionally equivalent, so you can use the C version
- * if desired.
- */
-int longest_match(cur_match)
- IPos cur_match; /* current match */
-{
- unsigned chain_length = max_chain_length; /* max hash chain length */
- register uch *scan = window + strstart; /* current string */
- register uch *match; /* matched string */
- register int len; /* length of current match */
- int best_len = prev_length; /* best match length so far */
- IPos limit = strstart > (IPos)MAX_DIST ? strstart - (IPos)MAX_DIST : NIL;
- /* Stop when cur_match becomes <= limit. To simplify the code,
- * we prevent matches with the string of window index 0.
- */
-
-/* The code is optimized for HASH_BITS >= 8 and MAX_MATCH-2 multiple of 16.
- * It is easy to get rid of this optimization if necessary.
- */
-#if HASH_BITS < 8 || MAX_MATCH != 258
- error: Code too clever
-#endif
-
-#ifdef UNALIGNED_OK
- /* Compare two bytes at a time. Note: this is not always beneficial.
- * Try with and without -DUNALIGNED_OK to check.
- */
- register uch *strend = window + strstart + MAX_MATCH - 1;
- register ush scan_start = *(ush*)scan;
- register ush scan_end = *(ush*)(scan+best_len-1);
-#else
- register uch *strend = window + strstart + MAX_MATCH;
- register uch scan_end1 = scan[best_len-1];
- register uch scan_end = scan[best_len];
-#endif
-
- /* Do not waste too much time if we already have a good match: */
- if (prev_length >= good_match) {
- chain_length >>= 2;
- }
- Assert(strstart <= window_size-MIN_LOOKAHEAD, "insufficient lookahead");
-
- do {
- Assert(cur_match < strstart, "no future");
- match = window + cur_match;
-
- /* Skip to next match if the match length cannot increase
- * or if the match length is less than 2:
- */
-#if (defined(UNALIGNED_OK) && MAX_MATCH == 258)
- /* This code assumes sizeof(unsigned short) == 2. Do not use
- * UNALIGNED_OK if your compiler uses a different size.
- */
- if (*(ush*)(match+best_len-1) != scan_end ||
- *(ush*)match != scan_start) continue;
-
- /* It is not necessary to compare scan[2] and match[2] since they are
- * always equal when the other bytes match, given that the hash keys
- * are equal and that HASH_BITS >= 8. Compare 2 bytes at a time at
- * strstart+3, +5, ... up to strstart+257. We check for insufficient
- * lookahead only every 4th comparison; the 128th check will be made
- * at strstart+257. If MAX_MATCH-2 is not a multiple of 8, it is
- * necessary to put more guard bytes at the end of the window, or
- * to check more often for insufficient lookahead.
- */
- scan++, match++;
- do {
- } while (*(ush*)(scan+=2) == *(ush*)(match+=2) &&
- *(ush*)(scan+=2) == *(ush*)(match+=2) &&
- *(ush*)(scan+=2) == *(ush*)(match+=2) &&
- *(ush*)(scan+=2) == *(ush*)(match+=2) &&
- scan < strend);
- /* The funny "do {}" generates better code on most compilers */
-
- /* Here, scan <= window+strstart+257 */
- Assert(scan <= window+(unsigned)(window_size-1), "wild scan");
- if (*scan == *match) scan++;
-
- len = (MAX_MATCH - 1) - (int)(strend-scan);
- scan = strend - (MAX_MATCH-1);
-
-#else /* UNALIGNED_OK */
-
- if (match[best_len] != scan_end ||
- match[best_len-1] != scan_end1 ||
- *match != *scan ||
- *++match != scan[1]) continue;
-
- /* The check at best_len-1 can be removed because it will be made
- * again later. (This heuristic is not always a win.)
- * It is not necessary to compare scan[2] and match[2] since they
- * are always equal when the other bytes match, given that
- * the hash keys are equal and that HASH_BITS >= 8.
- */
- scan += 2, match++;
-
- /* We check for insufficient lookahead only every 8th comparison;
- * the 256th check will be made at strstart+258.
- */
- do {
- } while (*++scan == *++match && *++scan == *++match &&
- *++scan == *++match && *++scan == *++match &&
- *++scan == *++match && *++scan == *++match &&
- *++scan == *++match && *++scan == *++match &&
- scan < strend);
-
- len = MAX_MATCH - (int)(strend - scan);
- scan = strend - MAX_MATCH;
-
-#endif /* UNALIGNED_OK */
-
- if (len > best_len) {
- match_start = cur_match;
- best_len = len;
- if (len >= nice_match) break;
-#ifdef UNALIGNED_OK
- scan_end = *(ush*)(scan+best_len-1);
-#else
- scan_end1 = scan[best_len-1];
- scan_end = scan[best_len];
-#endif
- }
- } while ((cur_match = prev[cur_match & WMASK]) > limit
- && --chain_length != 0);
-
- return best_len;
-}
-#endif /* ASMV */
-
-#ifdef DEBUG
-/* ===========================================================================
- * Check that the match at match_start is indeed a match.
- */
-local void check_match(start, match, length)
- IPos start, match;
- int length;
-{
- /* check that the match is indeed a match */
- if (memcmp((char*)window + match,
- (char*)window + start, length) != EQUAL) {
- fprintf(stderr,
- " start %d, match %d, length %d\n",
- start, match, length);
- error("invalid match");
- }
- if (verbose > 1) {
- fprintf(stderr,"\\[%d,%d]", start-match, length);
- do { putc(window[start++], stderr); } while (--length != 0);
- }
-}
-#else
-# define check_match(start, match, length)
-#endif
-
-/* ===========================================================================
- * Fill the window when the lookahead becomes insufficient.
- * Updates strstart and lookahead, and sets eofile if end of input file.
- * IN assertion: lookahead < MIN_LOOKAHEAD && strstart + lookahead > 0
- * OUT assertions: at least one byte has been read, or eofile is set;
- * file reads are performed for at least two bytes (required for the
- * translate_eol option).
- */
-local void fill_window()
-{
- register unsigned n, m;
- unsigned more = (unsigned)(window_size - (ulg)lookahead - (ulg)strstart);
- /* Amount of free space at the end of the window. */
-
- /* If the window is almost full and there is insufficient lookahead,
- * move the upper half to the lower one to make room in the upper half.
- */
- if (more == (unsigned)EOF) {
- /* Very unlikely, but possible on 16 bit machine if strstart == 0
- * and lookahead == 1 (input done one byte at time)
- */
- more--;
- } else if (strstart >= WSIZE+MAX_DIST) {
- /* By the IN assertion, the window is not empty so we can't confuse
- * more == 0 with more == 64K on a 16 bit machine.
- */
- Assert(window_size == (ulg)2*WSIZE, "no sliding with BIG_MEM");
-
- memcpy((char*)window, (char*)window+WSIZE, (unsigned)WSIZE);
- match_start -= WSIZE;
- strstart -= WSIZE; /* we now have strstart >= MAX_DIST: */
-
- block_start -= (long) WSIZE;
-
- for (n = 0; n < HASH_SIZE; n++) {
- m = head[n];
- head[n] = (Pos)(m >= WSIZE ? m-WSIZE : NIL);
- }
- for (n = 0; n < WSIZE; n++) {
- m = prev[n];
- prev[n] = (Pos)(m >= WSIZE ? m-WSIZE : NIL);
- /* If n is not on any hash chain, prev[n] is garbage but
- * its value will never be used.
- */
- }
- more += WSIZE;
- }
- /* At this point, more >= 2 */
- if (!eofile) {
- n = read_buf((char*)window+strstart+lookahead, more);
- if (n == 0 || n == (unsigned)EOF) {
- eofile = 1;
- } else {
- lookahead += n;
- }
- }
-}
-
-/* ===========================================================================
- * Flush the current block, with given end-of-file flag.
- * IN assertion: strstart is set to the end of the current match.
- */
-#define FLUSH_BLOCK(eof) \
- flush_block(block_start >= 0L ? (char*)&window[(unsigned)block_start] : \
- (char*)NULL, (long)strstart - block_start, (eof))
-
-/* ===========================================================================
- * Processes a new input file and return its compressed length. This
- * function does not perform lazy evaluationof matches and inserts
- * new strings in the dictionary only for unmatched strings or for short
- * matches. It is used only for the fast compression options.
- */
-local ulg deflate_fast()
-{
- IPos hash_head; /* head of the hash chain */
- int flush; /* set if current block must be flushed */
- unsigned match_length = 0; /* length of best match */
-
- prev_length = MIN_MATCH-1;
- while (lookahead != 0) {
- /* Insert the string window[strstart .. strstart+2] in the
- * dictionary, and set hash_head to the head of the hash chain:
- */
- INSERT_STRING(strstart, hash_head);
-
- /* Find the longest match, discarding those <= prev_length.
- * At this point we have always match_length < MIN_MATCH
- */
- if (hash_head != NIL && strstart - hash_head <= MAX_DIST) {
- /* To simplify the code, we prevent matches with the string
- * of window index 0 (in particular we have to avoid a match
- * of the string with itself at the start of the input file).
- */
- match_length = longest_match (hash_head);
- /* longest_match() sets match_start */
- if (match_length > lookahead) match_length = lookahead;
- }
- if (match_length >= MIN_MATCH) {
- check_match(strstart, match_start, match_length);
-
- flush = ct_tally(strstart-match_start, match_length - MIN_MATCH);
-
- lookahead -= match_length;
-
- /* Insert new strings in the hash table only if the match length
- * is not too large. This saves time but degrades compression.
- */
- if (match_length <= max_insert_length) {
- match_length--; /* string at strstart already in hash table */
- do {
- strstart++;
- INSERT_STRING(strstart, hash_head);
- /* strstart never exceeds WSIZE-MAX_MATCH, so there are
- * always MIN_MATCH bytes ahead. If lookahead < MIN_MATCH
- * these bytes are garbage, but it does not matter since
- * the next lookahead bytes will be emitted as literals.
- */
- } while (--match_length != 0);
- strstart++;
- } else {
- strstart += match_length;
- match_length = 0;
- ins_h = window[strstart];
- UPDATE_HASH(ins_h, window[strstart+1]);
-#if MIN_MATCH != 3
- Call UPDATE_HASH() MIN_MATCH-3 more times
-#endif
- }
- } else {
- /* No match, output a literal byte */
- Tracevv((stderr,"%c",window[strstart]));
- flush = ct_tally (0, window[strstart]);
- lookahead--;
- strstart++;
- }
- if (flush) FLUSH_BLOCK(0), block_start = strstart;
-
- /* Make sure that we always have enough lookahead, except
- * at the end of the input file. We need MAX_MATCH bytes
- * for the next match, plus MIN_MATCH bytes to insert the
- * string following the next match.
- */
- while (lookahead < MIN_LOOKAHEAD && !eofile) fill_window();
-
- }
- return FLUSH_BLOCK(1); /* eof */
-}
-
-/* ===========================================================================
- * Same as above, but achieves better compression. We use a lazy
- * evaluation for matches: a match is finally adopted only if there is
- * no better match at the next window position.
- */
-ulg deflate()
-{
- IPos hash_head; /* head of hash chain */
- IPos prev_match; /* previous match */
- int flush; /* set if current block must be flushed */
- int match_available = 0; /* set if previous match exists */
- register unsigned match_length = MIN_MATCH-1; /* length of best match */
-#ifdef DEBUG
- extern long isize; /* byte length of input file, for debug only */
-#endif
-
- if (compr_level <= 3) return deflate_fast(); /* optimized for speed */
-
- /* Process the input block. */
- while (lookahead != 0) {
- /* Insert the string window[strstart .. strstart+2] in the
- * dictionary, and set hash_head to the head of the hash chain:
- */
- INSERT_STRING(strstart, hash_head);
-
- /* Find the longest match, discarding those <= prev_length.
- */
- prev_length = match_length, prev_match = match_start;
- match_length = MIN_MATCH-1;
-
- if (hash_head != NIL && prev_length < max_lazy_match &&
- strstart - hash_head <= MAX_DIST) {
- /* To simplify the code, we prevent matches with the string
- * of window index 0 (in particular we have to avoid a match
- * of the string with itself at the start of the input file).
- */
- match_length = longest_match (hash_head);
- /* longest_match() sets match_start */
- if (match_length > lookahead) match_length = lookahead;
-
- /* Ignore a length 3 match if it is too distant: */
- if (match_length == MIN_MATCH && strstart-match_start > TOO_FAR){
- /* If prev_match is also MIN_MATCH, match_start is garbage
- * but we will ignore the current match anyway.
- */
- match_length--;
- }
- }
- /* If there was a match at the previous step and the current
- * match is not better, output the previous match:
- */
- if (prev_length >= MIN_MATCH && match_length <= prev_length) {
-
- check_match(strstart-1, prev_match, prev_length);
-
- flush = ct_tally(strstart-1-prev_match, prev_length - MIN_MATCH);
-
- /* Insert in hash table all strings up to the end of the match.
- * strstart-1 and strstart are already inserted.
- */
- lookahead -= prev_length-1;
- prev_length -= 2;
- do {
- strstart++;
- INSERT_STRING(strstart, hash_head);
- /* strstart never exceeds WSIZE-MAX_MATCH, so there are
- * always MIN_MATCH bytes ahead. If lookahead < MIN_MATCH
- * these bytes are garbage, but it does not matter since the
- * next lookahead bytes will always be emitted as literals.
- */
- } while (--prev_length != 0);
- match_available = 0;
- match_length = MIN_MATCH-1;
- strstart++;
- if (flush) FLUSH_BLOCK(0), block_start = strstart;
-
- } else if (match_available) {
- /* If there was no match at the previous position, output a
- * single literal. If there was a match but the current match
- * is longer, truncate the previous match to a single literal.
- */
- Tracevv((stderr,"%c",window[strstart-1]));
- if (ct_tally (0, window[strstart-1])) {
- FLUSH_BLOCK(0), block_start = strstart;
- }
- strstart++;
- lookahead--;
- } else {
- /* There is no previous match to compare with, wait for
- * the next step to decide.
- */
- match_available = 1;
- strstart++;
- lookahead--;
- }
- Assert (strstart <= isize && lookahead <= isize, "a bit too far");
-
- /* Make sure that we always have enough lookahead, except
- * at the end of the input file. We need MAX_MATCH bytes
- * for the next match, plus MIN_MATCH bytes to insert the
- * string following the next match.
- */
- while (lookahead < MIN_LOOKAHEAD && !eofile) fill_window();
- }
- if (match_available) ct_tally (0, window[strstart-1]);
-
- return FLUSH_BLOCK(1); /* eof */
-}
diff --git a/gnu/usr.bin/gzip/gzexe b/gnu/usr.bin/gzip/gzexe
deleted file mode 100644
index 8cce647..0000000
--- a/gnu/usr.bin/gzip/gzexe
+++ /dev/null
@@ -1,158 +0,0 @@
-#!/bin/sh
-# gzexe: compressor for Unix executables.
-# Use this only for binaries that you do not use frequently.
-#
-# The compressed version is a shell script which decompresses itself after
-# skipping $skip lines of shell commands. We try invoking the compressed
-# executable with the original name (for programs looking at their name).
-# We also try to retain the original file permissions on the compressed file.
-# For safety reasons, gzexe will not create setuid or setgid shell scripts.
-
-# WARNING: the first line of this file must be either : or #!/bin/sh
-# The : is required for some old versions of csh.
-# On Ultrix, /bin/sh is too buggy, change the first line to: #!/bin/sh5
-#
-# $FreeBSD$
-
-x=`basename $0`
-if test $# = 0; then
- echo compress executables. original file foo is renamed to foo~
- echo usage: ${x} [-d] files...
- echo " -d decompress the executables"
- exit 1
-fi
-
-tmp=`/usr/bin/mktemp -t gz` || exit 1
-trap "rm -f $tmp; exit 1" 1 2 3 5 10 13 15
-
-decomp=0
-res=0
-test "$x" = "ungzexe" && decomp=1
-if test "x$1" = "x-d"; then
- decomp=1
- shift
-fi
-
-zfoo1=`/usr/bin/mktemp -t zfoo1` || exit 1
-zfoo2=`/usr/bin/mktemp -t zfoo2` || exit 1
-echo hi > $zfoo1
-echo hi > $zfoo2
-if test -z "`(${CPMOD-cpmod} $zfoo1 $zfoo2) 2>&1`"; then
- cpmod=${CPMOD-cpmod}
-fi
-rm -f $zfoo1 $zfoo2
-
-tail=""
-IFS="${IFS= }"; saveifs="$IFS"; IFS="${IFS}:"
-for dir in $PATH; do
- test -z "$dir" && dir=.
- if test -f $dir/tail; then
- tail="$dir/tail"
- break
- fi
-done
-IFS="$saveifs"
-if test -z "$tail"; then
- echo cannot find tail
- exit 1
-fi
-
-for i do
- if test ! -f "$i" ; then
- echo ${x}: $i not a file
- res=1
- continue
- fi
- if test $decomp -eq 0; then
- if sed -e 1d -e 2q "$i" | grep "^skip=[0-9]*$" >/dev/null; then
- echo "${x}: $i is already gzexe'd"
- continue
- fi
- fi
- if ls -l "$i" | grep '^...[sS]' > /dev/null; then
- echo "${x}: $i has setuid permission, unchanged"
- continue
- fi
- if ls -l "$i" | grep '^......[sS]' > /dev/null; then
- echo "${x}: $i has setgid permission, unchanged"
- continue
- fi
- case "`basename $i`" in
- sh | gzip | tail | chmod | ln | sleep | rm | mktemp)
- echo "${x}: $i would depend on itself"; continue ;;
- esac
- if test -z "$cpmod"; then
- cp -p "$i" $tmp 2>/dev/null || cp "$i" $tmp
- if test -w $tmp 2>/dev/null; then
- writable=1
- else
- writable=0
- chmod u+w $tmp 2>/dev/null
- fi
- fi
- if test $decomp -eq 0; then
- sed 1q $0 > $tmp
- sed "s|^if tail|if $tail|" >> $tmp <<'EOF'
-skip=22
-gztmp=`/usr/bin/mktemp -t gztmp` || exit 1
-if tail +$skip $0 | gzip -cd > $gztmp; then
- chmod 700 $gztmp
- prog="`echo $0 | sed 's|^.*/||'`"
- progtmp=`/usr/bin/mktemp -t ${prog}` || exit 1
- if /bin/ln $gztmp $progtmp 2>/dev/null; then
- trap '/bin/rm -f $gztmp $progtmp; exit $res' 0
- (/bin/sleep 5; /bin/rm -f $gztmp $progtmp) 2>/dev/null &
- /tmp/"$prog" ${1+"$@"}; res=$?
- else
- trap '/bin/rm -f $progtmp $gztmp exit $res' 0
- (/bin/sleep 5; /bin/rm -f $progtmp $gztmp) 2>/dev/null &
- $gztmp ${1+"$@"}; res=$?
- fi
-else
- echo Cannot decompress $0
- rm -f $gztmp
- exit 1
-fi; exit $res
-EOF
- gzip -cv9 "$i" >> $tmp || {
- /bin/rm -f $tmp
- echo ${x}: compression not possible for $i, file unchanged.
- res=1
- continue
- }
-
- else
- # decompression
- skip=18
- if sed -e 1d -e 2q "$i" | grep "^skip=[0-9]*$" >/dev/null; then
- eval `sed -e 1d -e 2q "$i"`
- fi
- if tail +$skip "$i" | gzip -cd > $tmp; then
- :
- else
- echo ${x}: $i probably not in gzexe format, file unchanged.
- res=1
- continue
- fi
- fi
- rm -f "$i~"
- mv "$i" "$i~" || {
- echo ${x}: cannot backup $i as $i~
- rm -f $tmp
- res=1
- continue
- }
- mv $tmp "$i" || cp -p $tmp "$i" 2>/dev/null || cp $tmp "$i" || {
- echo ${x}: cannot create $i
- rm -f $tmp
- res=1
- continue
- }
- rm -f $tmp
- if test -n "$cpmod"; then
- $cpmod "$i~" "$i" 2>/dev/null
- elif test $writable -eq 0; then
- chmod u-w $i 2>/dev/null
- fi
-done
-exit $res
diff --git a/gnu/usr.bin/gzip/gzexe.1 b/gnu/usr.bin/gzip/gzexe.1
deleted file mode 100644
index 8b62cd6..0000000
--- a/gnu/usr.bin/gzip/gzexe.1
+++ /dev/null
@@ -1,43 +0,0 @@
-.TH GZEXE 1
-.SH NAME
-gzexe \- compress executable files in place
-.SH SYNOPSIS
-.B gzexe
-[ name ... ]
-.SH DESCRIPTION
-The
-.I gzexe
-utility allows you to compress executables in place and have them
-automatically uncompress and execute when you run them (at a penalty
-in performance). For example if you execute ``gzexe /bin/cat'' it
-will create the following two files:
-.nf
-.br
- -r-xr-xr-x 1 root bin 9644 Feb 11 11:16 /bin/cat
- -r-xr-xr-x 1 bin bin 24576 Nov 23 13:21 /bin/cat~
-.fi
-/bin/cat~ is the original file and /bin/cat is the self-uncompressing
-executable file. You can remove /bin/cat~ once you are sure that
-/bin/cat works properly.
-.PP
-This utility is most useful on systems with very small disks.
-.SH OPTIONS
-.TP
-.B \-d
-Decompress the given executables instead of compressing them.
-.SH "SEE ALSO"
-gzip(1), znew(1), zmore(1), zcmp(1), zforce(1)
-.SH CAVEATS
-The compressed executable is a shell script. This may create some
-security holes. In particular, the compressed executable relies
-on the PATH environment variable to find
-.I gzip
-and some other utilities
-.I (tail, chmod, ln, sleep).
-.SH "BUGS"
-.I gzexe
-attempts to retain the original file attributes on the compressed executable,
-but you may have to fix them manually in some cases, using
-.I chmod
-or
-.I chown.
diff --git a/gnu/usr.bin/gzip/gzip.1 b/gnu/usr.bin/gzip/gzip.1
deleted file mode 100644
index 795e47f..0000000
--- a/gnu/usr.bin/gzip/gzip.1
+++ /dev/null
@@ -1,479 +0,0 @@
-.\" $FreeBSD$
-.\"
-.PU
-.TH GZIP 1
-.SH NAME
-gzip, gunzip, zcat \- compress or expand files
-.SH SYNOPSIS
-.ll +8
-.B gzip
-.RB [ " \-acdfhlLnNrtvV19 " ]
-.RB [ \-S\ suffix ]
-[
-.I "name \&..."
-]
-.ll -8
-.br
-.B gunzip
-.RB [ " \-acfhlLnNrtvV " ]
-.RB [ \-S\ suffix ]
-[
-.I "name \&..."
-]
-.br
-.B zcat
-.RB [ " \-fhLV " ]
-[
-.I "name \&..."
-]
-.SH DESCRIPTION
-.I Gzip
-reduces the size of the named files using Lempel-Ziv coding (LZ77).
-Whenever possible,
-each file is replaced by one with the extension
-.B "\&.gz,"
-while keeping the same ownership modes, access and modification times.
-(The default extension is
-.B "\-gz"
-for VMS,
-.B "z"
-for MSDOS, OS/2 FAT, Windows NT FAT and Atari.)
-If no files are specified, or if a file name is "-", the standard input is
-compressed to the standard output.
-.I Gzip
-will only attempt to compress regular files.
-In particular, it will ignore symbolic links.
-.PP
-If the compressed file name is too long for its file system,
-.I gzip
-truncates it.
-.I Gzip
-attempts to truncate only the parts of the file name longer than 3 characters.
-(A part is delimited by dots.) If the name consists of small parts only,
-the longest parts are truncated. For example, if file names are limited
-to 14 characters, gzip.msdos.exe is compressed to gzi.msd.exe.gz.
-Names are not truncated on systems which do not have a limit on file name
-length.
-.PP
-By default,
-.I gzip
-keeps the original file name and timestamp in the compressed file. These
-are used when decompressing the file with the
-.B \-N
-option. This is useful when the compressed file name was truncated or
-when the time stamp was not preserved after a file transfer.
-.PP
-Compressed files can be restored to their original form using
-.I gzip -d
-or
-.I gunzip
-or
-.I zcat.
-If the original name saved in the compressed file is not suitable for its
-file system, a new name is constructed from the original one to make it
-legal.
-.PP
-.I gunzip
-takes a list of files on its command line and replaces each
-file whose name ends with .gz, -gz, .z, -z, _z or .Z
-and which begins with the correct magic number with an uncompressed
-file without the original extension.
-.I gunzip
-also recognizes the special extensions
-.B "\&.tgz"
-and
-.B "\&.taz"
-as shorthands for
-.B "\&.tar.gz"
-and
-.B "\&.tar.Z"
-respectively.
-When compressing,
-.I gzip
-uses the
-.B "\&.tgz"
-extension if necessary instead of truncating a file with a
-.B "\&.tar"
-extension.
-.PP
-.I gunzip
-can currently decompress files created by
-.I gzip, zip, compress, compress -H
-or
-.I pack.
-The detection of the input format is automatic. When using
-the first two formats,
-.I gunzip
-checks a 32 bit CRC. For
-.I pack, gunzip
-checks the uncompressed length. The standard
-.I compress
-format was not designed to allow consistency checks. However
-.I gunzip
-is sometimes able to detect a bad .Z file. If you get an error
-when uncompressing a .Z file, do not assume that the .Z file is
-correct simply because the standard
-.I uncompress
-does not complain. This generally means that the standard
-.I uncompress
-does not check its input, and happily generates garbage output.
-The SCO compress -H format (lzh compression method) does not include a CRC
-but also allows some consistency checks.
-.PP
-Files created by
-.I zip
-can be uncompressed by gzip only if they have a single member compressed
-with the 'deflation' method. This feature is only intended to help
-conversion of tar.zip files to the tar.gz format. To extract zip files
-with several members, use
-.I unzip
-instead of
-.I gunzip.
-.PP
-.I zcat
-is identical to
-.I gunzip
-.B \-c.
-(On some systems,
-.I zcat
-may be installed as
-.I gzcat
-to preserve the original link to
-.I compress.)
-.I zcat
-uncompresses either a list of files on the command line or its
-standard input and writes the uncompressed data on standard output.
-.I zcat
-will uncompress files that have the correct magic number whether
-they have a
-.B "\&.gz"
-suffix or not.
-.PP
-.I Gzip
-uses the Lempel-Ziv algorithm used in
-.I zip
-and PKZIP.
-The amount of compression obtained depends on the size of the
-input and the distribution of common substrings.
-Typically, text such as source code or English
-is reduced by 60\-70%.
-Compression is generally much better than that achieved by
-LZW (as used in
-.IR compress ),
-Huffman coding (as used in
-.IR pack ),
-or adaptive Huffman coding
-.RI ( compact ).
-.PP
-Compression is always performed, even if the compressed file is
-slightly larger than the original. The worst case expansion is
-a few bytes for the gzip file header, plus 5 bytes every 32K block,
-or an expansion ratio of 0.015% for large files. Note that the actual
-number of used disk blocks almost never increases.
-.I gzip
-preserves the mode, ownership and timestamps of files when compressing
-or decompressing.
-
-.SH OPTIONS
-.TP
-.B \-a --ascii
-ASCII text mode: convert end-of-lines using local conventions. This option
-is supported only on some non-Unix systems. For MSDOS, CR LF is converted
-to LF when compressing, and LF is converted to CR LF when decompressing.
-.TP
-.B \-c --stdout --to-stdout
-Write output on standard output; keep original files unchanged.
-If there are several input files, the output consists of a sequence of
-independently compressed members. To obtain better compression,
-concatenate all input files before compressing them.
-.TP
-.B \-d --decompress --uncompress
-Decompress.
-.TP
-.B \-f --force
-Force compression or decompression even if the file has multiple links
-or the corresponding file already exists, or if the compressed data
-is read from or written to a terminal. If the input data is not in
-a format recognized by
-.I gzip,
-and if the option --stdout is also given, copy the input data without change
-to the standard output: let
-.I zcat
-behave as
-.I cat.
-If
-.B \-f
-is not given,
-and when not running in the background,
-.I gzip
-prompts to verify whether an existing file should be overwritten.
-.TP
-.B \-h --help
-Display a help screen and quit.
-.TP
-.B \-l --list
-For each compressed file, list the following fields:
-
- compressed size: size of the compressed file
- uncompressed size: size of the uncompressed file
- ratio: compression ratio (0.0% if unknown)
- uncompressed_name: name of the uncompressed file
-
-The uncompressed size is given as -1 for files not in gzip format,
-such as compressed .Z files. To get the uncompressed size for such a file,
-you can use:
-
- zcat file.Z | wc -c
-
-In combination with the --verbose option, the following fields are also
-displayed:
-
- method: compression method
- crc: the 32-bit CRC of the uncompressed data
- date & time: time stamp for the uncompressed file
-
-The compression methods currently supported are deflate, compress, lzh
-(SCO compress -H) and pack. The crc is given as ffffffff for a file
-not in gzip format.
-
-With --name, the uncompressed name, date and time are
-those stored within the compress file if present.
-
-With --verbose, the size totals and compression ratio for all files
-is also displayed, unless some sizes are unknown. With --quiet,
-the title and totals lines are not displayed.
-.TP
-.B \-L --license
-Display the
-.I gzip
-license and quit.
-.TP
-.B \-n --no-name
-When compressing, do not save the original file name and time stamp by
-default. (The original name is always saved if the name had to be
-truncated.) When decompressing, do not restore the original file name
-if present (remove only the
-.I gzip
-suffix from the compressed file name) and do not restore the original
-time stamp if present (copy it from the compressed file). This option
-is the default when decompressing.
-.TP
-.B \-N --name
-When compressing, always save the original file name and time stamp; this
-is the default. When decompressing, restore the original file name and
-time stamp if present. This option is useful on systems which have
-a limit on file name length or when the time stamp has been lost after
-a file transfer.
-.TP
-.B \-q --quiet
-Suppress all warnings.
-.TP
-.B \-r --recursive
-Travel the directory structure recursively. If any of the file names
-specified on the command line are directories,
-.I gzip
-will descend into the directory and compress all the files it finds there
-(or decompress them in the case of
-.I gunzip
-).
-.TP
-.B \-S .suf --suffix .suf
-Use suffix .suf instead of .gz. Any suffix can be given, but suffixes
-other than .z and .gz should be avoided to avoid confusion when files
-are transferred to other systems. A null suffix forces gunzip to try
-decompression on all given files regardless of suffix, as in:
-
- gunzip -S "" * (*.* for MSDOS)
-
-Previous versions of gzip used
-the .z suffix. This was changed to avoid a conflict with
-.IR pack "(1)".
-.TP
-.B \-t --test
-Test. Check the compressed file integrity.
-.TP
-.B \-v --verbose
-Verbose. Display the name and percentage reduction for each file compressed
-or decompressed.
-.TP
-.B \-V --version
-Version. Display the version number and compilation options then quit.
-.TP
-.B \-# --fast --best
-Regulate the speed of compression using the specified digit
-.IR # ,
-where
-.B \-1
-or
-.B \-\-fast
-indicates the fastest compression method (less compression)
-and
-.B \-9
-or
-.B \-\-best
-indicates the slowest compression method (best compression).
-The default compression level is
-.BR \-6
-(that is, biased towards high compression at expense of speed).
-.SH "ADVANCED USAGE"
-Multiple compressed files can be concatenated. In this case,
-.I gunzip
-will extract all members at once. For example:
-
- gzip -c file1 > foo.gz
- gzip -c file2 >> foo.gz
-
-Then
- gunzip -c foo
-
-is equivalent to
-
- cat file1 file2
-
-In case of damage to one member of a .gz file, other members can
-still be recovered (if the damaged member is removed). However,
-you can get better compression by compressing all members at once:
-
- cat file1 file2 | gzip > foo.gz
-
-compresses better than
-
- gzip -c file1 file2 > foo.gz
-
-If you want to recompress concatenated files to get better compression, do:
-
- gzip -cd old.gz | gzip > new.gz
-
-If a compressed file consists of several members, the uncompressed
-size and CRC reported by the --list option applies to the last member
-only. If you need the uncompressed size for all members, you can use:
-
- gzip -cd file.gz | wc -c
-
-If you wish to create a single archive file with multiple members so
-that members can later be extracted independently, use an archiver
-such as tar or zip. GNU tar supports the -z option to invoke gzip
-transparently. gzip is designed as a complement to tar, not as a
-replacement.
-.SH "ENVIRONMENT"
-The environment variable
-.B GZIP
-can hold a set of default options for
-.I gzip.
-These options are interpreted first and can be overwritten by
-explicit command line parameters. For example:
- for sh: GZIP="-8v --name"; export GZIP
- for csh: setenv GZIP "-8v --name"
- for MSDOS: set GZIP=-8v --name
-
-On Vax/VMS, the name of the environment variable is GZIP_OPT, to
-avoid a conflict with the symbol set for invocation of the program.
-.SH "SEE ALSO"
-znew(1), zcmp(1), zmore(1), zforce(1), gzexe(1), compress(1)
-.SH "DIAGNOSTICS"
-Exit status is normally 0;
-if an error occurs, exit status is 1. If a warning occurs, exit status is 2.
-.PP
-Usage: gzip [-cdfhlLnNrtvV19] [-S suffix] [file ...]
-.in +8
-Invalid options were specified on the command line.
-.in -8
-.IR file :
-not in gzip format
-.in +8
-The file specified to
-.I gunzip
-has not been compressed.
-.in -8
-.IR file:
-Corrupt input. Use zcat to recover some data.
-.in +8
-The compressed file has been damaged. The data up to the point of failure
-can be recovered using
-.in +8
-zcat file > recover
-.in -16
-.IR file :
-compressed with
-.I xx
-bits, can only handle
-.I yy
-bits
-.in +8
-.I File
-was compressed (using LZW) by a program that could deal with
-more
-.I bits
-than the decompress code on this machine.
-Recompress the file with gzip, which compresses better and uses
-less memory.
-.in -8
-.IR file :
-already has .gz suffix -- no change
-.in +8
-The file is assumed to be already compressed.
-Rename the file and try again.
-.in -8
-.I file
-already exists; do you wish to overwrite (y or n)?
-.in +8
-Respond "y" if you want the output file to be replaced; "n" if not.
-.in -8
-gunzip: corrupt input
-.in +8
-A SIGSEGV violation was detected which usually means that the input file has
-been corrupted.
-.in -8
-.I "xx.x%"
-.in +8
-Percentage of the input saved by compression.
-(Relevant only for
-.BR \-v
-and
-.BR \-l \.)
-.in -8
--- not a regular file or directory: ignored
-.in +8
-When the input file is not a regular file or directory,
-(e.g. a symbolic link, socket, FIFO, device file), it is
-left unaltered.
-.in -8
--- has
-.I xx
-other links: unchanged
-.in +8
-The input file has links; it is left unchanged. See
-.IR ln "(1)"
-for more information. Use the
-.B \-f
-flag to force compression of multiply-linked files.
-.in -8
-.SH CAVEATS
-When writing compressed data to a tape, it is generally necessary to
-pad the output with zeroes up to a block boundary. When the data is
-read and the whole block is passed to
-.I gunzip
-for decompression,
-.I gunzip
-detects that there is extra trailing garbage after the compressed data
-and emits a warning by default. You have to use the --quiet option to
-suppress the warning. This option can be set in the
-.B GZIP
-environment variable as in:
- for sh: GZIP="-q" tar -xfz --block-compress /dev/rst0
- for csh: (setenv GZIP -q; tar -xfz --block-compr /dev/rst0
-
-In the above example, gzip is invoked implicitly by the -z option of
-GNU tar. Make sure that the same block size (-b option of tar) is used
-for reading and writing compressed data on tapes. (This example
-assumes you are using the GNU version of tar.)
-.SH BUGS
-The --list option reports incorrect sizes if they exceed 2 gigabytes.
-The --list option reports sizes as -1 and crc as ffffffff if the
-compressed file is on a non seekable media.
-
-In some rare cases, the --best option gives worse compression than
-the default compression level (-6). On some highly redundant files,
-.I compress
-compresses better than
-.I gzip.
diff --git a/gnu/usr.bin/gzip/gzip.c b/gnu/usr.bin/gzip/gzip.c
deleted file mode 100644
index a9af12c..0000000
--- a/gnu/usr.bin/gzip/gzip.c
+++ /dev/null
@@ -1,1758 +0,0 @@
-/* gzip (GNU zip) -- compress files with zip algorithm and 'compress' interface
- * Copyright (C) 1992-1993 Jean-loup Gailly
- * The unzip code was written and put in the public domain by Mark Adler.
- * Portions of the lzw code are derived from the public domain 'compress'
- * written by Spencer Thomas, Joe Orost, James Woods, Jim McKie, Steve Davies,
- * Ken Turkowski, Dave Mack and Peter Jannesen.
- *
- * See the license_msg below and the file COPYING for the software license.
- * See the file algorithm.doc for the compression algorithms and file formats.
- */
-
-static char *license_msg[] = {
-" Copyright (C) 1992-1993 Jean-loup Gailly",
-" This program is free software; you can redistribute it and/or modify",
-" it under the terms of the GNU General Public License as published by",
-" the Free Software Foundation; either version 2, or (at your option)",
-" any later version.",
-"",
-" This program is distributed in the hope that it will be useful,",
-" but WITHOUT ANY WARRANTY; without even the implied warranty of",
-" MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the",
-" GNU General Public License for more details.",
-"",
-" You should have received a copy of the GNU General Public License",
-" along with this program; if not, write to the Free Software",
-" Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.",
-0};
-
-/* Compress files with zip algorithm and 'compress' interface.
- * See usage() and help() functions below for all options.
- * Outputs:
- * file.gz: compressed file with same mode, owner, and utimes
- * or stdout with -c option or if stdin used as input.
- * If the output file name had to be truncated, the original name is kept
- * in the compressed file.
- * On MSDOS, file.tmp -> file.tmz. On VMS, file.tmp -> file.tmp-gz.
- *
- * Using gz on MSDOS would create too many file name conflicts. For
- * example, foo.txt -> foo.tgz (.tgz must be reserved as shorthand for
- * tar.gz). Similarly, foo.dir and foo.doc would both be mapped to foo.dgz.
- * I also considered 12345678.txt -> 12345txt.gz but this truncates the name
- * too heavily. There is no ideal solution given the MSDOS 8+3 limitation.
- *
- * For the meaning of all compilation flags, see comments in Makefile.in.
- */
-
-#ifdef RCSID
-static char rcsid[] = "$FreeBSD$";
-#endif
-
-#include <ctype.h>
-#include <sys/types.h>
-#include <signal.h>
-#include <sys/stat.h>
-#include <errno.h>
-
-#include "tailor.h"
-#include "gzip.h"
-#include "lzw.h"
-#include "revision.h"
-#include "getopt.h"
-
- /* configuration */
-
-#ifdef NO_TIME_H
-# include <sys/time.h>
-#else
-# include <time.h>
-#endif
-
-#ifndef NO_FCNTL_H
-# include <fcntl.h>
-#endif
-
-#ifdef HAVE_UNISTD_H
-# include <unistd.h>
-#endif
-
-#if defined(STDC_HEADERS) || !defined(NO_STDLIB_H)
-# include <stdlib.h>
-#else
- extern int errno;
-#endif
-
-#if defined(DIRENT)
-# include <dirent.h>
- typedef struct dirent dir_type;
-# define NLENGTH(dirent) ((int)strlen((dirent)->d_name))
-# define DIR_OPT "DIRENT"
-#else
-# define NLENGTH(dirent) ((dirent)->d_namlen)
-# ifdef SYSDIR
-# include <sys/dir.h>
- typedef struct direct dir_type;
-# define DIR_OPT "SYSDIR"
-# else
-# ifdef SYSNDIR
-# include <sys/ndir.h>
- typedef struct direct dir_type;
-# define DIR_OPT "SYSNDIR"
-# else
-# ifdef NDIR
-# include <ndir.h>
- typedef struct direct dir_type;
-# define DIR_OPT "NDIR"
-# else
-# define NO_DIR
-# define DIR_OPT "NO_DIR"
-# endif
-# endif
-# endif
-#endif
-
-#ifndef NO_UTIME
-# ifndef NO_UTIME_H
-# include <utime.h>
-# define TIME_OPT "UTIME"
-# else
-# ifdef HAVE_SYS_UTIME_H
-# include <sys/utime.h>
-# define TIME_OPT "SYS_UTIME"
-# else
- struct utimbuf {
- time_t actime;
- time_t modtime;
- };
-# define TIME_OPT ""
-# endif
-# endif
-#else
-# define TIME_OPT "NO_UTIME"
-#endif
-
-#if !defined(S_ISDIR) && defined(S_IFDIR)
-# define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
-#endif
-#if !defined(S_ISREG) && defined(S_IFREG)
-# define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
-#endif
-
-typedef RETSIGTYPE (*sig_type) OF((int));
-
-#ifndef O_BINARY
-# define O_BINARY 0 /* creation mode for open() */
-#endif
-
-#ifndef O_CREAT
- /* Pure BSD system? */
-# include <sys/file.h>
-# ifndef O_CREAT
-# define O_CREAT FCREAT
-# endif
-# ifndef O_EXCL
-# define O_EXCL FEXCL
-# endif
-#endif
-
-#ifndef S_IRUSR
-# define S_IRUSR 0400
-#endif
-#ifndef S_IWUSR
-# define S_IWUSR 0200
-#endif
-#define RW_USER (S_IRUSR | S_IWUSR) /* creation mode for open() */
-
-#ifndef MAX_PATH_LEN
-# define MAX_PATH_LEN 1024 /* max pathname length */
-#endif
-
-#ifndef SEEK_END
-# define SEEK_END 2
-#endif
-
-#ifdef NO_OFF_T
- typedef long off_t;
- off_t lseek OF((int fd, off_t offset, int whence));
-#endif
-
-/* Separator for file name parts (see shorten_name()) */
-#ifdef NO_MULTIPLE_DOTS
-# define PART_SEP "-"
-#else
-# define PART_SEP "."
-#endif
-
- /* global buffers */
-
-DECLARE(uch, inbuf, INBUFSIZ +INBUF_EXTRA);
-DECLARE(uch, outbuf, OUTBUFSIZ+OUTBUF_EXTRA);
-DECLARE(ush, d_buf, DIST_BUFSIZE);
-DECLARE(uch, window, 2L*WSIZE);
-#ifndef MAXSEG_64K
- DECLARE(ush, tab_prefix, 1L<<BITS);
-#else
- DECLARE(ush, tab_prefix0, 1L<<(BITS-1));
- DECLARE(ush, tab_prefix1, 1L<<(BITS-1));
-#endif
-
- /* local variables */
-
-int ascii = 0; /* convert end-of-lines to local OS conventions */
-int to_stdout = 0; /* output to stdout (-c) */
-int decompress = 0; /* decompress (-d) */
-int force = 0; /* don't ask questions, compress links (-f) */
-int no_name = -1; /* don't save or restore the original file name */
-int no_time = -1; /* don't save or restore the original file time */
-int recursive = 0; /* recurse through directories (-r) */
-int list = 0; /* list the file contents (-l) */
-int verbose = 0; /* be verbose (-v) */
-int quiet = 0; /* be very quiet (-q) */
-int do_lzw = 0; /* generate output compatible with old compress (-Z) */
-int test = 0; /* test .gz file integrity */
-int foreground; /* set if program run in foreground */
-char *progname; /* program name */
-int maxbits = BITS; /* max bits per code for LZW */
-int method = DEFLATED;/* compression method */
-int level = 6; /* compression level */
-int exit_code = OK; /* program exit code */
-int save_orig_name; /* set if original name must be saved */
-int last_member; /* set for .zip and .Z files */
-int part_nb; /* number of parts in .gz file */
-long time_stamp; /* original time stamp (modification time) */
-long ifile_size; /* input file size, -1 for devices (debug only) */
-char *env; /* contents of GZIP env variable */
-char **args = NULL; /* argv pointer if GZIP env variable defined */
-char z_suffix[MAX_SUFFIX+1]; /* default suffix (can be set with --suffix) */
-int z_len; /* strlen(z_suffix) */
-
-long bytes_in; /* number of input bytes */
-long bytes_out; /* number of output bytes */
-long total_in = 0; /* input bytes for all files */
-long total_out = 0; /* output bytes for all files */
-char ifname[MAX_PATH_LEN]; /* input file name */
-char ofname[MAX_PATH_LEN]; /* output file name */
-int remove_ofname = 0; /* remove output file on error */
-struct stat istat; /* status for input file */
-int ifd; /* input file descriptor */
-int ofd; /* output file descriptor */
-unsigned insize; /* valid bytes in inbuf */
-unsigned inptr; /* index of next byte to be processed in inbuf */
-unsigned outcnt; /* bytes in output buffer */
-
-struct option longopts[] =
-{
- /* { name has_arg *flag val } */
- {"ascii", 0, 0, 'a'}, /* ascii text mode */
- {"to-stdout", 0, 0, 'c'}, /* write output on standard output */
- {"stdout", 0, 0, 'c'}, /* write output on standard output */
- {"decompress", 0, 0, 'd'}, /* decompress */
- {"uncompress", 0, 0, 'd'}, /* decompress */
- /* {"encrypt", 0, 0, 'e'}, encrypt */
- {"force", 0, 0, 'f'}, /* force overwrite of output file */
- {"help", 0, 0, 'h'}, /* give help */
- /* {"pkzip", 0, 0, 'k'}, force output in pkzip format */
- {"list", 0, 0, 'l'}, /* list .gz file contents */
- {"license", 0, 0, 'L'}, /* display software license */
- {"no-name", 0, 0, 'n'}, /* don't save or restore original name & time */
- {"name", 0, 0, 'N'}, /* save or restore original name & time */
- {"quiet", 0, 0, 'q'}, /* quiet mode */
- {"silent", 0, 0, 'q'}, /* quiet mode */
- {"recursive", 0, 0, 'r'}, /* recurse through directories */
- {"suffix", 1, 0, 'S'}, /* use given suffix instead of .gz */
- {"test", 0, 0, 't'}, /* test compressed file integrity */
- {"no-time", 0, 0, 'T'}, /* don't save or restore the time stamp */
- {"verbose", 0, 0, 'v'}, /* verbose mode */
- {"version", 0, 0, 'V'}, /* display version number */
- {"fast", 0, 0, '1'}, /* compress faster */
- {"best", 0, 0, '9'}, /* compress better */
- {"lzw", 0, 0, 'Z'}, /* make output compatible with old compress */
- {"bits", 1, 0, 'b'}, /* max number of bits per code (implies -Z) */
- { 0, 0, 0, 0 }
-};
-
-/* local functions */
-
-local void usage OF((void));
-local void help OF((void));
-local void license OF((void));
-local void version OF((void));
-local void treat_stdin OF((void));
-local void treat_file OF((char *iname));
-local int create_outfile OF((void));
-local int do_stat OF((char *name, struct stat *sbuf));
-local char *get_suffix OF((char *name));
-local int get_istat OF((char *iname, struct stat *sbuf));
-local int make_ofname OF((void));
-local int same_file OF((struct stat *stat1, struct stat *stat2));
-local int name_too_long OF((char *name, struct stat *statb));
-local void shorten_name OF((char *name));
-local int get_method OF((int in));
-local void do_list OF((int ifd, int method));
-local int check_ofname OF((void));
-local void copy_stat OF((struct stat *ifstat));
-local void do_exit OF((int exitcode));
- int main OF((int argc, char **argv));
-int (*work) OF((int infile, int outfile)) = zip; /* function to call */
-
-#ifndef NO_DIR
-local void treat_dir OF((char *dir));
-#endif
-#ifndef NO_UTIME
-local void reset_times OF((char *name, struct stat *statb));
-#endif
-
-#define strequ(s1, s2) (strcmp((s1),(s2)) == 0)
-
-/* ======================================================================== */
-local void usage()
-{
- fprintf(stderr, "usage: %s [-%scdfhlLnN%stvV19] [-S suffix] [file ...]\n",
- progname,
-#if O_BINARY
- "a",
-#else
- "",
-#endif
-#ifdef NO_DIR
- ""
-#else
- "r"
-#endif
- );
-}
-
-/* ======================================================================== */
-local void help()
-{
- static char *help_msg[] = {
-#if O_BINARY
- " -a --ascii ascii text; convert end-of-lines using local conventions",
-#endif
- " -c --stdout write on standard output, keep original files unchanged",
- " -d --decompress decompress",
-/* -e --encrypt encrypt */
- " -f --force force overwrite of output file and compress links",
- " -h --help give this help",
-/* -k --pkzip force output in pkzip format */
- " -l --list list compressed file contents",
- " -L --license display software license",
-#ifdef UNDOCUMENTED
- " -m --no-time do not save or restore the original modification time",
- " -M --time save or restore the original modification time",
-#endif
- " -n --no-name do not save or restore the original name and time stamp",
- " -N --name save or restore the original name and time stamp",
- " -q --quiet suppress all warnings",
-#ifndef NO_DIR
- " -r --recursive operate recursively on directories",
-#endif
- " -S .suf --suffix .suf use suffix .suf on compressed files",
- " -t --test test compressed file integrity",
- " -v --verbose verbose mode",
- " -V --version display version number",
- " -1 --fast compress faster",
- " -9 --best compress better",
-#ifdef LZW
- " -Z --lzw produce output compatible with old compress",
- " -b --bits maxbits max number of bits per code (implies -Z)",
-#endif
- " file... files to (de)compress. If none given, use standard input.",
- 0};
- char **p = help_msg;
-
- fprintf(stderr,"%s %s (%s)\n", progname, VERSION, REVDATE);
- usage();
- while (*p) fprintf(stderr, "%s\n", *p++);
-}
-
-/* ======================================================================== */
-local void license()
-{
- char **p = license_msg;
-
- fprintf(stderr,"%s %s (%s)\n", progname, VERSION, REVDATE);
- while (*p) fprintf(stderr, "%s\n", *p++);
-}
-
-/* ======================================================================== */
-local void version()
-{
- fprintf(stderr,"%s %s (%s)\n", progname, VERSION, REVDATE);
-
- fprintf(stderr, "Compilation options:\n%s %s ", DIR_OPT, TIME_OPT);
-#ifdef STDC_HEADERS
- fprintf(stderr, "STDC_HEADERS ");
-#endif
-#ifdef HAVE_UNISTD_H
- fprintf(stderr, "HAVE_UNISTD_H ");
-#endif
-#ifdef NO_MEMORY_H
- fprintf(stderr, "NO_MEMORY_H ");
-#endif
-#ifdef NO_STRING_H
- fprintf(stderr, "NO_STRING_H ");
-#endif
-#ifdef NO_SYMLINK
- fprintf(stderr, "NO_SYMLINK ");
-#endif
-#ifdef NO_MULTIPLE_DOTS
- fprintf(stderr, "NO_MULTIPLE_DOTS ");
-#endif
-#ifdef NO_CHOWN
- fprintf(stderr, "NO_CHOWN ");
-#endif
-#ifdef PROTO
- fprintf(stderr, "PROTO ");
-#endif
-#ifdef ASMV
- fprintf(stderr, "ASMV ");
-#endif
-#ifdef DEBUG
- fprintf(stderr, "DEBUG ");
-#endif
-#ifdef DYN_ALLOC
- fprintf(stderr, "DYN_ALLOC ");
-#endif
-#ifdef MAXSEG_64K
- fprintf(stderr, "MAXSEG_64K");
-#endif
- fprintf(stderr, "\n");
-}
-
-/* ======================================================================== */
-int main (argc, argv)
- int argc;
- char **argv;
-{
- int file_count; /* number of files to precess */
- int proglen; /* length of progname */
- int optc; /* current option */
-
- EXPAND(argc, argv); /* wild card expansion if necessary */
-
- progname = basename(argv[0]);
- proglen = strlen(progname);
-
- /* Suppress .exe for MSDOS, OS/2 and VMS: */
- if (proglen > 4 && strequ(progname+proglen-4, ".exe")) {
- progname[proglen-4] = '\0';
- }
-
- /* Add options in GZIP environment variable if there is one */
- env = add_envopt(&argc, &argv, OPTIONS_VAR);
- if (env != NULL) args = argv;
-
- foreground = signal(SIGINT, SIG_IGN) != SIG_IGN;
- if (foreground) {
- (void) signal (SIGINT, (sig_type)abort_gzip);
- }
-#ifdef SIGTERM
- if (signal(SIGTERM, SIG_IGN) != SIG_IGN) {
- (void) signal(SIGTERM, (sig_type)abort_gzip);
- }
-#endif
-#ifdef SIGHUP
- if (signal(SIGHUP, SIG_IGN) != SIG_IGN) {
- (void) signal(SIGHUP, (sig_type)abort_gzip);
- }
-#endif
-
-#ifndef GNU_STANDARD
- /* For compatibility with old compress, use program name as an option.
- * If you compile with -DGNU_STANDARD, this program will behave as
- * gzip even if it is invoked under the name gunzip or zcat.
- *
- * Systems which do not support links can still use -d or -dc.
- * Ignore an .exe extension for MSDOS, OS/2 and VMS.
- */
- if ( strncmp(progname, "un", 2) == 0 /* ungzip, uncompress */
- || strncmp(progname, "gun", 3) == 0) { /* gunzip */
- decompress = 1;
- } else if (strequ(progname+1, "cat") /* zcat, pcat, gcat */
- || strequ(progname, "gzcat")) { /* gzcat */
- decompress = to_stdout = 1;
- }
-#endif
-
- strncpy(z_suffix, Z_SUFFIX, sizeof(z_suffix)-1);
- z_len = strlen(z_suffix);
-
- while ((optc = getopt_long (argc, argv, "ab:cdfhH?lLmMnNqrS:tvVZ123456789",
- longopts, (int *)0)) != EOF) {
- switch (optc) {
- case 'a':
- ascii = 1; break;
- case 'b':
- maxbits = atoi(optarg);
- break;
- case 'c':
- to_stdout = 1; break;
- case 'd':
- decompress = 1; break;
- case 'f':
- force++; break;
- case 'h': case 'H': case '?':
- help(); do_exit(OK); break;
- case 'l':
- list = decompress = to_stdout = 1; break;
- case 'L':
- license(); do_exit(OK); break;
- case 'm': /* undocumented, may change later */
- no_time = 1; break;
- case 'M': /* undocumented, may change later */
- no_time = 0; break;
- case 'n':
- no_name = no_time = 1; break;
- case 'N':
- no_name = no_time = 0; break;
- case 'q':
- quiet = 1; verbose = 0; break;
- case 'r':
-#ifdef NO_DIR
- fprintf(stderr, "%s: -r not supported on this system\n", progname);
- usage();
- do_exit(ERROR); break;
-#else
- recursive = 1; break;
-#endif
- case 'S':
-#ifdef NO_MULTIPLE_DOTS
- if (*optarg == '.') optarg++;
-#endif
- z_len = strlen(optarg);
- if (z_len > sizeof(z_suffix)-1) {
- fprintf(stderr, "%s: -S suffix too long\n", progname);
- usage();
- do_exit(ERROR);
- }
- strncpy(z_suffix, optarg, sizeof z_suffix-1);
- z_suffix[sizeof z_suffix-1] = '\0';
- break;
- case 't':
- test = decompress = to_stdout = 1;
- break;
- case 'v':
- verbose++; quiet = 0; break;
- case 'V':
- version(); do_exit(OK); break;
- case 'Z':
-#ifdef LZW
- do_lzw = 1; break;
-#else
- fprintf(stderr, "%s: -Z not supported in this version\n",
- progname);
- usage();
- do_exit(ERROR); break;
-#endif
- case '1': case '2': case '3': case '4':
- case '5': case '6': case '7': case '8': case '9':
- level = optc - '0';
- break;
- default:
- /* Error message already emitted by getopt_long. */
- usage();
- do_exit(ERROR);
- }
- } /* loop on all arguments */
-
- /* By default, save name and timestamp on compression but do not
- * restore them on decompression.
- */
- if (no_time < 0) no_time = decompress;
- if (no_name < 0) no_name = decompress;
-
- file_count = argc - optind;
-
-#if O_BINARY
-#else
- if (ascii && !quiet) {
- fprintf(stderr, "%s: option --ascii ignored on this system\n",
- progname);
- }
-#endif
- if ((z_len == 0 && !decompress) || z_len > MAX_SUFFIX) {
- fprintf(stderr, "%s: incorrect suffix '%s'\n",
- progname, optarg);
- do_exit(ERROR);
- }
- if (do_lzw && !decompress) work = lzw;
-
- /* Allocate all global buffers (for DYN_ALLOC option) */
- ALLOC(uch, inbuf, INBUFSIZ +INBUF_EXTRA);
- ALLOC(uch, outbuf, OUTBUFSIZ+OUTBUF_EXTRA);
- ALLOC(ush, d_buf, DIST_BUFSIZE);
- ALLOC(uch, window, 2L*WSIZE);
-#ifndef MAXSEG_64K
- ALLOC(ush, tab_prefix, 1L<<BITS);
-#else
- ALLOC(ush, tab_prefix0, 1L<<(BITS-1));
- ALLOC(ush, tab_prefix1, 1L<<(BITS-1));
-#endif
-
- /* And get to work */
- if (file_count != 0) {
- if (to_stdout && !test && !list && (!decompress || !ascii)) {
- SET_BINARY_MODE(fileno(stdout));
- }
- while (optind < argc) {
- treat_file(argv[optind++]);
- }
- } else { /* Standard input */
- treat_stdin();
- }
- if (list && !quiet && file_count > 1) {
- do_list(-1, -1); /* print totals */
- }
- do_exit(exit_code);
- return exit_code; /* just to avoid lint warning */
-}
-
-/* ========================================================================
- * Compress or decompress stdin
- */
-local void treat_stdin()
-{
- if (!force && !list &&
- isatty(fileno((FILE *)(decompress ? stdin : stdout)))) {
- /* Do not send compressed data to the terminal or read it from
- * the terminal. We get here when user invoked the program
- * without parameters, so be helpful. According to the GNU standards:
- *
- * If there is one behavior you think is most useful when the output
- * is to a terminal, and another that you think is most useful when
- * the output is a file or a pipe, then it is usually best to make
- * the default behavior the one that is useful with output to a
- * terminal, and have an option for the other behavior.
- *
- * Here we use the --force option to get the other behavior.
- */
- fprintf(stderr,
- "%s: compressed data not %s a terminal. Use -f to force %scompression.\n",
- progname, decompress ? "read from" : "written to",
- decompress ? "de" : "");
- fprintf(stderr,"For help, type: %s -h\n", progname);
- do_exit(ERROR);
- }
-
- if (decompress || !ascii) {
- SET_BINARY_MODE(fileno(stdin));
- }
- if (!test && !list && (!decompress || !ascii)) {
- SET_BINARY_MODE(fileno(stdout));
- }
- strcpy(ifname, "stdin");
- strcpy(ofname, "stdout");
-
- /* Get the time stamp on the input file. */
- time_stamp = 0; /* time unknown by default */
-
-#ifndef NO_STDIN_FSTAT
- if (list || !no_time) {
- if (fstat(fileno(stdin), &istat) != 0) {
- error("fstat(stdin)");
- }
-# ifdef NO_PIPE_TIMESTAMP
- if (S_ISREG(istat.st_mode))
-# endif
- time_stamp = istat.st_mtime;
-#endif /* NO_STDIN_FSTAT */
- }
- ifile_size = -1L; /* convention for unknown size */
-
- clear_bufs(); /* clear input and output buffers */
- to_stdout = 1;
- part_nb = 0;
-
- if (decompress) {
- method = get_method(ifd);
- if (method < 0) {
- do_exit(exit_code); /* error message already emitted */
- }
- }
- if (list) {
- do_list(ifd, method);
- return;
- }
-
- /* Actually do the compression/decompression. Loop over zipped members.
- */
- for (;;) {
- if ((*work)(fileno(stdin), fileno(stdout)) != OK) return;
-
- if (!decompress || last_member || inptr == insize) break;
- /* end of file */
-
- method = get_method(ifd);
- if (method < 0) return; /* error message already emitted */
- bytes_out = 0; /* required for length check */
- }
-
- if (verbose) {
- if (test) {
- fprintf(stderr, " OK\n");
-
- } else if (!decompress) {
- display_ratio(bytes_in-(bytes_out-header_bytes), bytes_in, stderr);
- fprintf(stderr, "\n");
-#ifdef DISPLAY_STDIN_RATIO
- } else {
- display_ratio(bytes_out-(bytes_in-header_bytes), bytes_out,stderr);
- fprintf(stderr, "\n");
-#endif
- }
- }
-}
-
-/* ========================================================================
- * Compress or decompress the given file
- */
-local void treat_file(iname)
- char *iname;
-{
- /* Accept "-" as synonym for stdin */
- if (strequ(iname, "-")) {
- int cflag = to_stdout;
- treat_stdin();
- to_stdout = cflag;
- return;
- }
-
- /* Check if the input file is present, set ifname and istat: */
- if (get_istat(iname, &istat) != OK) return;
-
- /* If the input name is that of a directory, recurse or ignore: */
- if (S_ISDIR(istat.st_mode)) {
-#ifndef NO_DIR
- if (recursive) {
- struct stat st;
- st = istat;
- treat_dir(iname);
- /* Warning: ifname is now garbage */
-# ifndef NO_UTIME
- reset_times (iname, &st);
-# endif
- } else
-#endif
- WARN((stderr,"%s: %s is a directory -- ignored\n", progname, ifname));
- return;
- }
- if (!S_ISREG(istat.st_mode)) {
- WARN((stderr,
- "%s: %s is not a directory or a regular file - ignored\n",
- progname, ifname));
- return;
- }
- if (istat.st_nlink > 1 && !to_stdout && !force) {
- WARN((stderr, "%s: %s has %d other link%c -- unchanged\n",
- progname, ifname,
- (int)istat.st_nlink - 1, istat.st_nlink > 2 ? 's' : ' '));
- return;
- }
-
- ifile_size = istat.st_size;
- time_stamp = no_time && !list ? 0 : istat.st_mtime;
-
- /* Generate output file name. For -r and (-t or -l), skip files
- * without a valid gzip suffix (check done in make_ofname).
- */
- if (to_stdout && !list && !test) {
- strcpy(ofname, "stdout");
-
- } else if (make_ofname() != OK) {
- return;
- }
-
- /* Open the input file and determine compression method. The mode
- * parameter is ignored but required by some systems (VMS) and forbidden
- * on other systems (MacOS).
- */
- ifd = OPEN(ifname, ascii && !decompress ? O_RDONLY : O_RDONLY | O_BINARY,
- RW_USER);
- if (ifd == -1) {
- fprintf(stderr, "%s: ", progname);
- perror(ifname);
- exit_code = ERROR;
- return;
- }
- clear_bufs(); /* clear input and output buffers */
- part_nb = 0;
-
- if (decompress) {
- method = get_method(ifd); /* updates ofname if original given */
- if (method < 0) {
- close(ifd);
- return; /* error message already emitted */
- }
- }
- if (list) {
- do_list(ifd, method);
- close(ifd);
- return;
- }
-
- /* If compressing to a file, check if ofname is not ambiguous
- * because the operating system truncates names. Otherwise, generate
- * a new ofname and save the original name in the compressed file.
- */
- if (to_stdout) {
- ofd = fileno(stdout);
- /* keep remove_ofname as zero */
- } else {
- if (create_outfile() != OK) return;
-
- if (!decompress && save_orig_name && !verbose && !quiet) {
- fprintf(stderr, "%s: %s compressed to %s\n",
- progname, ifname, ofname);
- }
- }
- /* Keep the name even if not truncated except with --no-name: */
- if (!save_orig_name) save_orig_name = !no_name;
-
- if (verbose) {
- fprintf(stderr, "%s:\t%s", ifname, (int)strlen(ifname) >= 15 ?
- "" : ((int)strlen(ifname) >= 7 ? "\t" : "\t\t"));
- }
-
- /* Actually do the compression/decompression. Loop over zipped members.
- */
- for (;;) {
- if ((*work)(ifd, ofd) != OK) {
- method = -1; /* force cleanup */
- break;
- }
- if (!decompress || last_member || inptr == insize) break;
- /* end of file */
-
- method = get_method(ifd);
- if (method < 0) break; /* error message already emitted */
- bytes_out = 0; /* required for length check */
- }
-
- close(ifd);
- if (!to_stdout) {
- /* Copy modes, times, ownership, and remove the input file */
- copy_stat(&istat);
- if (close(ofd))
- write_error();
- }
- if (method == -1) {
- if (!to_stdout) unlink (ofname);
- return;
- }
- /* Display statistics */
- if(verbose) {
- if (test) {
- fprintf(stderr, " OK");
- } else if (decompress) {
- display_ratio(bytes_out-(bytes_in-header_bytes), bytes_out,stderr);
- } else {
- display_ratio(bytes_in-(bytes_out-header_bytes), bytes_in, stderr);
- }
- if (!test && !to_stdout) {
- fprintf(stderr, " -- replaced with %s", ofname);
- }
- fprintf(stderr, "\n");
- }
-}
-
-/* ========================================================================
- * Create the output file. Return OK or ERROR.
- * Try several times if necessary to avoid truncating the z_suffix. For
- * example, do not create a compressed file of name "1234567890123."
- * Sets save_orig_name to true if the file name has been truncated.
- * IN assertions: the input file has already been open (ifd is set) and
- * ofname has already been updated if there was an original name.
- * OUT assertions: ifd and ofd are closed in case of error.
- */
-local int create_outfile()
-{
- struct stat ostat; /* stat for ofname */
- int flags = O_WRONLY | O_CREAT | O_EXCL | O_BINARY;
-
- if (ascii && decompress) {
- flags &= ~O_BINARY; /* force ascii text mode */
- }
- for (;;) {
- /* Make sure that ofname is not an existing file */
- if (check_ofname() != OK) {
- close(ifd);
- return ERROR;
- }
- /* Create the output file */
- remove_ofname = 1;
- ofd = OPEN(ofname, flags, RW_USER);
- if (ofd == -1) {
- perror(ofname);
- close(ifd);
- exit_code = ERROR;
- return ERROR;
- }
-
- /* Check for name truncation on new file (1234567890123.gz) */
-#ifdef NO_FSTAT
- if (stat(ofname, &ostat) != 0) {
-#else
- if (fstat(ofd, &ostat) != 0) {
-#endif
- fprintf(stderr, "%s: ", progname);
- perror(ofname);
- close(ifd); close(ofd);
- unlink(ofname);
- exit_code = ERROR;
- return ERROR;
- }
- if (!name_too_long(ofname, &ostat)) return OK;
-
- if (decompress) {
- /* name might be too long if an original name was saved */
- WARN((stderr, "%s: %s: warning, name truncated\n",
- progname, ofname));
- return OK;
- }
- close(ofd);
- unlink(ofname);
-#ifdef NO_MULTIPLE_DOTS
- /* Should never happen, see check_ofname() */
- fprintf(stderr, "%s: %s: name too long\n", progname, ofname);
- do_exit(ERROR);
-#endif
- shorten_name(ofname);
- }
-}
-
-/* ========================================================================
- * Use lstat if available, except for -c or -f. Use stat otherwise.
- * This allows links when not removing the original file.
- */
-local int do_stat(name, sbuf)
- char *name;
- struct stat *sbuf;
-{
- errno = 0;
-#if (defined(S_IFLNK) || defined (S_ISLNK)) && !defined(NO_SYMLINK)
- if (!to_stdout && !force) {
- return lstat(name, sbuf);
- }
-#endif
- return stat(name, sbuf);
-}
-
-/* ========================================================================
- * Return a pointer to the 'z' suffix of a file name, or NULL. For all
- * systems, ".gz", ".z", ".Z", ".taz", ".tgz", "-gz", "-z" and "_z" are
- * accepted suffixes, in addition to the value of the --suffix option.
- * ".tgz" is a useful convention for tar.z files on systems limited
- * to 3 characters extensions. On such systems, ".?z" and ".??z" are
- * also accepted suffixes. For Unix, we do not want to accept any
- * .??z suffix as indicating a compressed file; some people use .xyz
- * to denote volume data.
- * On systems allowing multiple versions of the same file (such as VMS),
- * this function removes any version suffix in the given name.
- */
-local char *get_suffix(name)
- char *name;
-{
- int nlen, slen;
- char suffix[MAX_SUFFIX+3]; /* last chars of name, forced to lower case */
- static char *known_suffixes[] =
- {z_suffix, ".gz", ".z", ".taz", ".tgz", "-gz", "-z", "_z",
-#ifdef MAX_EXT_CHARS
- "z",
-#endif
- NULL};
- char **suf = known_suffixes;
-
- if (strequ(z_suffix, "z")) suf++; /* check long suffixes first */
-
-#ifdef SUFFIX_SEP
- /* strip a version number from the file name */
- {
- char *v = strrchr(name, SUFFIX_SEP);
- if (v != NULL) *v = '\0';
- }
-#endif
- nlen = strlen(name);
- if (nlen <= MAX_SUFFIX+2) {
- strcpy(suffix, name);
- } else {
- strcpy(suffix, name+nlen-MAX_SUFFIX-2);
- }
- strlwr(suffix);
- slen = strlen(suffix);
- do {
- int s = strlen(*suf);
- if (slen > s && suffix[slen-s-1] != PATH_SEP
- && strequ(suffix + slen - s, *suf)) {
- return name+nlen-s;
- }
- } while (*++suf != NULL);
-
- return NULL;
-}
-
-
-/* ========================================================================
- * Set ifname to the input file name (with a suffix appended if necessary)
- * and istat to its stats. For decompression, if no file exists with the
- * original name, try adding successively z_suffix, .gz, .z, -z and .Z.
- * For MSDOS, we try only z_suffix and z.
- * Return OK or ERROR.
- */
-local int get_istat(iname, sbuf)
- char *iname;
- struct stat *sbuf;
-{
- int ilen; /* strlen(ifname) */
- static char *suffixes[] = {z_suffix, ".gz", ".z", "-z", ".Z", NULL};
- char **suf = suffixes;
- char *s;
-#ifdef NO_MULTIPLE_DOTS
- char *dot; /* pointer to ifname extension, or NULL */
-#endif
- int max_suffix_len = (z_len > 3 ? z_len : 3);
-
- /* Leave enough room in ifname or ofname for suffix: */
- if (strlen(iname) >= sizeof(ifname) - max_suffix_len) {
- errno = ENAMETOOLONG;
- perror(iname);
- exit_code = ERROR;
- return ERROR;
- }
- strcpy(ifname, iname);
-
- /* If input file exists, return OK. */
- if (do_stat(ifname, sbuf) == 0) return OK;
-
- if (!decompress || errno != ENOENT) {
- perror(ifname);
- exit_code = ERROR;
- return ERROR;
- }
- /* file.ext doesn't exist, try adding a suffix (after removing any
- * version number for VMS).
- */
- s = get_suffix(ifname);
- if (s != NULL) {
- perror(ifname); /* ifname already has z suffix and does not exist */
- exit_code = ERROR;
- return ERROR;
- }
-#ifdef NO_MULTIPLE_DOTS
- dot = strrchr(ifname, '.');
- if (dot == NULL) {
- strcat(ifname, ".");
- dot = strrchr(ifname, '.');
- }
-#endif
- ilen = strlen(ifname);
- if (strequ(z_suffix, ".gz")) suf++;
-
- /* Search for all suffixes */
- do {
- s = *suf;
-#ifdef NO_MULTIPLE_DOTS
- if (*s == '.') s++;
-#endif
-#ifdef MAX_EXT_CHARS
- strcpy(ifname, iname);
- /* Needed if the suffixes are not sorted by increasing length */
-
- if (*dot == '\0') strcpy(dot, ".");
- dot[MAX_EXT_CHARS+1-strlen(s)] = '\0';
-#endif
- strcat(ifname, s);
- if (do_stat(ifname, sbuf) == 0) return OK;
- ifname[ilen] = '\0';
- } while (*++suf != NULL);
-
- /* No suffix found, complain using z_suffix: */
-#ifdef MAX_EXT_CHARS
- strcpy(ifname, iname);
- if (*dot == '\0') strcpy(dot, ".");
- dot[MAX_EXT_CHARS+1-z_len] = '\0';
-#endif
- strcat(ifname, z_suffix);
- perror(ifname);
- exit_code = ERROR;
- return ERROR;
-}
-
-/* ========================================================================
- * Generate ofname given ifname. Return OK, or WARNING if file must be skipped.
- * Sets save_orig_name to true if the file name has been truncated.
- */
-local int make_ofname()
-{
- char *suff; /* ofname z suffix */
-
- strcpy(ofname, ifname);
- /* strip a version number if any and get the gzip suffix if present: */
- suff = get_suffix(ofname);
-
- if (decompress) {
- if (suff == NULL) {
- /* Whith -t or -l, try all files (even without .gz suffix)
- * except with -r (behave as with just -dr).
- */
- if (!recursive && (list || test)) return OK;
-
- /* Avoid annoying messages with -r */
- if (verbose || (!recursive && !quiet)) {
- WARN((stderr,"%s: %s: unknown suffix -- ignored\n",
- progname, ifname));
- }
- return WARNING;
- }
- /* Make a special case for .tgz and .taz: */
- strlwr(suff);
- if (strequ(suff, ".tgz") || strequ(suff, ".taz")) {
- strcpy(suff, ".tar");
- } else {
- *suff = '\0'; /* strip the z suffix */
- }
- /* ofname might be changed later if infile contains an original name */
-
- } else if (suff != NULL) {
- /* Avoid annoying messages with -r (see treat_dir()) */
- if (verbose || (!recursive && !quiet)) {
- fprintf(stderr, "%s: %s already has %s suffix -- unchanged\n",
- progname, ifname, suff);
- }
- if (exit_code == OK) exit_code = WARNING;
- return WARNING;
- } else {
- save_orig_name = 0;
-
-#ifdef NO_MULTIPLE_DOTS
- suff = strrchr(ofname, '.');
- if (suff == NULL) {
- strcat(ofname, ".");
-# ifdef MAX_EXT_CHARS
- if (strequ(z_suffix, "z")) {
- strcat(ofname, "gz"); /* enough room */
- return OK;
- }
- /* On the Atari and some versions of MSDOS, name_too_long()
- * does not work correctly because of a bug in stat(). So we
- * must truncate here.
- */
- } else if (strlen(suff)-1 + z_len > MAX_SUFFIX) {
- suff[MAX_SUFFIX+1-z_len] = '\0';
- save_orig_name = 1;
-# endif
- }
-#endif /* NO_MULTIPLE_DOTS */
- strcat(ofname, z_suffix);
-
- } /* decompress ? */
- return OK;
-}
-
-
-/* ========================================================================
- * Check the magic number of the input file and update ofname if an
- * original name was given and to_stdout is not set.
- * Return the compression method, -1 for error, -2 for warning.
- * Set inptr to the offset of the next byte to be processed.
- * Updates time_stamp if there is one and --no-time is not used.
- * This function may be called repeatedly for an input file consisting
- * of several contiguous gzip'ed members.
- * IN assertions: there is at least one remaining compressed member.
- * If the member is a zip file, it must be the only one.
- */
-local int get_method(in)
- int in; /* input file descriptor */
-{
- uch flags; /* compression flags */
- char magic[2]; /* magic header */
- ulg stamp; /* time stamp */
-
- /* If --force and --stdout, zcat == cat, so do not complain about
- * premature end of file: use try_byte instead of get_byte.
- */
- if (force && to_stdout) {
- magic[0] = (char)try_byte();
- magic[1] = (char)try_byte();
- /* If try_byte returned EOF, magic[1] == 0xff */
- } else {
- magic[0] = (char)get_byte();
- magic[1] = (char)get_byte();
- }
- method = -1; /* unknown yet */
- part_nb++; /* number of parts in gzip file */
- header_bytes = 0;
- last_member = RECORD_IO;
- /* assume multiple members in gzip file except for record oriented I/O */
-
- if (memcmp(magic, GZIP_MAGIC, 2) == 0
- || memcmp(magic, OLD_GZIP_MAGIC, 2) == 0) {
-
- method = (int)get_byte();
- if (method != DEFLATED) {
- fprintf(stderr,
- "%s: %s: unknown method %d -- get newer version of gzip\n",
- progname, ifname, method);
- exit_code = ERROR;
- return -1;
- }
- work = unzip;
- flags = (uch)get_byte();
-
- if ((flags & ENCRYPTED) != 0) {
- fprintf(stderr,
- "%s: %s is encrypted -- get newer version of gzip\n",
- progname, ifname);
- exit_code = ERROR;
- return -1;
- }
- if ((flags & CONTINUATION) != 0) {
- fprintf(stderr,
- "%s: %s is a a multi-part gzip file -- get newer version of gzip\n",
- progname, ifname);
- exit_code = ERROR;
- if (force <= 1) return -1;
- }
- if ((flags & RESERVED) != 0) {
- fprintf(stderr,
- "%s: %s has flags 0x%x -- get newer version of gzip\n",
- progname, ifname, flags);
- exit_code = ERROR;
- if (force <= 1) return -1;
- }
- stamp = (ulg)get_byte();
- stamp |= ((ulg)get_byte()) << 8;
- stamp |= ((ulg)get_byte()) << 16;
- stamp |= ((ulg)get_byte()) << 24;
- if (stamp != 0 && !no_time) time_stamp = stamp;
-
- (void)get_byte(); /* Ignore extra flags for the moment */
- (void)get_byte(); /* Ignore OS type for the moment */
-
- if ((flags & CONTINUATION) != 0) {
- unsigned part = (unsigned)get_byte();
- part |= ((unsigned)get_byte())<<8;
- if (verbose) {
- fprintf(stderr,"%s: %s: part number %u\n",
- progname, ifname, part);
- }
- }
- if ((flags & EXTRA_FIELD) != 0) {
- unsigned len = (unsigned)get_byte();
- len |= ((unsigned)get_byte())<<8;
- if (verbose) {
- fprintf(stderr,"%s: %s: extra field of %u bytes ignored\n",
- progname, ifname, len);
- }
- while (len--) (void)get_byte();
- }
-
- /* Get original file name if it was truncated */
- if ((flags & ORIG_NAME) != 0) {
- if (no_name || (to_stdout && !list) || part_nb > 1) {
- /* Discard the old name */
- char c; /* dummy used for NeXTstep 3.0 cc optimizer bug */
- do {c=get_byte();} while (c != 0);
- } else {
- /* Copy the base name. Keep a directory prefix intact. */
- char *p = basename(ofname);
- char *base = p;
- char *base2;
- for (;;) {
- *p = (char)get_char();
- if (*p++ == '\0') break;
- if (p >= ofname+sizeof(ofname)) {
- error("corrupted input -- file name too large");
- }
- }
- base2 = basename (base);
- strcpy(base, base2);
- /* If necessary, adapt the name to local OS conventions: */
- if (!list) {
- MAKE_LEGAL_NAME(base);
- if (base) list=0; /* avoid warning about unused variable */
- }
- } /* no_name || to_stdout */
- } /* ORIG_NAME */
-
- /* Discard file comment if any */
- if ((flags & COMMENT) != 0) {
- while (get_char() != 0) /* null */ ;
- }
- if (part_nb == 1) {
- header_bytes = inptr + 2*sizeof(long); /* include crc and size */
- }
-
- } else if (memcmp(magic, PKZIP_MAGIC, 2) == 0 && inptr == 2
- && memcmp((char*)inbuf, PKZIP_MAGIC, 4) == 0) {
- /* To simplify the code, we support a zip file when alone only.
- * We are thus guaranteed that the entire local header fits in inbuf.
- */
- inptr = 0;
- work = unzip;
- if (check_zipfile(in) != OK) return -1;
- /* check_zipfile may get ofname from the local header */
- last_member = 1;
-
- } else if (memcmp(magic, PACK_MAGIC, 2) == 0) {
- work = unpack;
- method = PACKED;
-
- } else if (memcmp(magic, LZW_MAGIC, 2) == 0) {
- work = unlzw;
- method = COMPRESSED;
- last_member = 1;
-
- } else if (memcmp(magic, LZH_MAGIC, 2) == 0) {
- work = unlzh;
- method = LZHED;
- last_member = 1;
-
- } else if (force && to_stdout && !list) { /* pass input unchanged */
- method = STORED;
- work = copy;
- inptr = 0;
- last_member = 1;
- }
- if (method >= 0) return method;
-
- if (part_nb == 1) {
- fprintf(stderr, "\n%s: %s: not in gzip format\n", progname, ifname);
- exit_code = ERROR;
- return -1;
- } else {
- WARN((stderr, "\n%s: %s: decompression OK, trailing garbage ignored\n",
- progname, ifname));
- return -2;
- }
-}
-
-/* ========================================================================
- * Display the characteristics of the compressed file.
- * If the given method is < 0, display the accumulated totals.
- * IN assertions: time_stamp, header_bytes and ifile_size are initialized.
- */
-local void do_list(ifd, method)
- int ifd; /* input file descriptor */
- int method; /* compression method */
-{
- ulg crc; /* original crc */
- static int first_time = 1;
- static char* methods[MAX_METHODS] = {
- "store", /* 0 */
- "compr", /* 1 */
- "pack ", /* 2 */
- "lzh ", /* 3 */
- "", "", "", "", /* 4 to 7 reserved */
- "defla"}; /* 8 */
- char *date;
-
- if (first_time && method >= 0) {
- first_time = 0;
- if (verbose) {
- printf("method crc date time ");
- }
- if (!quiet) {
- printf("compressed uncompr. ratio uncompressed_name\n");
- }
- } else if (method < 0) {
- if (total_in <= 0 || total_out <= 0) return;
- if (verbose) {
- printf(" %9lu %9lu ",
- total_in, total_out);
- } else if (!quiet) {
- printf("%9ld %9ld ", total_in, total_out);
- }
- display_ratio(total_out-(total_in-header_bytes), total_out, stdout);
- /* header_bytes is not meaningful but used to ensure the same
- * ratio if there is a single file.
- */
- printf(" (totals)\n");
- return;
- }
- crc = (ulg)~0; /* unknown */
- bytes_out = -1L;
- bytes_in = ifile_size;
-
-#if RECORD_IO == 0
- if (method == DEFLATED && !last_member) {
- /* Get the crc and uncompressed size for gzip'ed (not zip'ed) files.
- * If the lseek fails, we could use read() to get to the end, but
- * --list is used to get quick results.
- * Use "gunzip < foo.gz | wc -c" to get the uncompressed size if
- * you are not concerned about speed.
- */
- bytes_in = (long)lseek(ifd, (off_t)(-8), SEEK_END);
- if (bytes_in != -1L) {
- uch buf[8];
- bytes_in += 8L;
- if (read(ifd, (char*)buf, sizeof(buf)) != sizeof(buf)) {
- read_error();
- }
- crc = LG(buf);
- bytes_out = LG(buf+4);
- }
- }
-#endif /* RECORD_IO */
- date = ctime((time_t*)&time_stamp) + 4; /* skip the day of the week */
- date[12] = '\0'; /* suppress the 1/100sec and the year */
- if (verbose) {
- printf("%5s %08lx %11s ", methods[method], crc, date);
- }
- printf("%9ld %9ld ", bytes_in, bytes_out);
- if (bytes_in == -1L) {
- total_in = -1L;
- bytes_in = bytes_out = header_bytes = 0;
- } else if (total_in >= 0) {
- total_in += bytes_in;
- }
- if (bytes_out == -1L) {
- total_out = -1L;
- bytes_in = bytes_out = header_bytes = 0;
- } else if (total_out >= 0) {
- total_out += bytes_out;
- }
- display_ratio(bytes_out-(bytes_in-header_bytes), bytes_out, stdout);
- printf(" %s\n", ofname);
-}
-
-/* ========================================================================
- * Return true if the two stat structures correspond to the same file.
- */
-local int same_file(stat1, stat2)
- struct stat *stat1;
- struct stat *stat2;
-{
- return stat1->st_ino == stat2->st_ino
- && stat1->st_dev == stat2->st_dev
-#ifdef NO_ST_INO
- /* Can't rely on st_ino and st_dev, use other fields: */
- && stat1->st_mode == stat2->st_mode
- && stat1->st_uid == stat2->st_uid
- && stat1->st_gid == stat2->st_gid
- && stat1->st_size == stat2->st_size
- && stat1->st_atime == stat2->st_atime
- && stat1->st_mtime == stat2->st_mtime
- && stat1->st_ctime == stat2->st_ctime
-#endif
- ;
-}
-
-/* ========================================================================
- * Return true if a file name is ambiguous because the operating system
- * truncates file names.
- */
-local int name_too_long(name, statb)
- char *name; /* file name to check */
- struct stat *statb; /* stat buf for this file name */
-{
- int s = strlen(name);
- char c = name[s-1];
- struct stat tstat; /* stat for truncated name */
- int res;
-
- tstat = *statb; /* Just in case OS does not fill all fields */
- name[s-1] = '\0';
- res = stat(name, &tstat) == 0 && same_file(statb, &tstat);
- name[s-1] = c;
- Trace((stderr, " too_long(%s) => %d\n", name, res));
- return res;
-}
-
-/* ========================================================================
- * Shorten the given name by one character, or replace a .tar extension
- * with .tgz. Truncate the last part of the name which is longer than
- * MIN_PART characters: 1234.678.012.gz -> 123.678.012.gz. If the name
- * has only parts shorter than MIN_PART truncate the longest part.
- * For decompression, just remove the last character of the name.
- *
- * IN assertion: for compression, the suffix of the given name is z_suffix.
- */
-local void shorten_name(name)
- char *name;
-{
- int len; /* length of name without z_suffix */
- char *trunc = NULL; /* character to be truncated */
- int plen; /* current part length */
- int min_part = MIN_PART; /* current minimum part length */
- char *p;
-
- len = strlen(name);
- if (decompress) {
- if (len <= 1) error("name too short");
- name[len-1] = '\0';
- return;
- }
- p = get_suffix(name);
- if (p == NULL) error("can't recover suffix\n");
- *p = '\0';
- save_orig_name = 1;
-
- /* compress 1234567890.tar to 1234567890.tgz */
- if (len > 4 && strequ(p-4, ".tar")) {
- strcpy(p-4, ".tgz");
- return;
- }
- /* Try keeping short extensions intact:
- * 1234.678.012.gz -> 123.678.012.gz
- */
- do {
- p = strrchr(name, PATH_SEP);
- p = p ? p+1 : name;
- while (*p) {
- plen = strcspn(p, PART_SEP);
- p += plen;
- if (plen > min_part) trunc = p-1;
- if (*p) p++;
- }
- } while (trunc == NULL && --min_part != 0);
-
- if (trunc != NULL) {
- do {
- trunc[0] = trunc[1];
- } while (*trunc++);
- trunc--;
- } else {
- trunc = strrchr(name, PART_SEP[0]);
- if (trunc == NULL) error("internal error in shorten_name");
- if (trunc[1] == '\0') trunc--; /* force truncation */
- }
- strcpy(trunc, z_suffix);
-}
-
-/* ========================================================================
- * If compressing to a file, check if ofname is not ambiguous
- * because the operating system truncates names. Otherwise, generate
- * a new ofname and save the original name in the compressed file.
- * If the compressed file already exists, ask for confirmation.
- * The check for name truncation is made dynamically, because different
- * file systems on the same OS might use different truncation rules (on SVR4
- * s5 truncates to 14 chars and ufs does not truncate).
- * This function returns -1 if the file must be skipped, and
- * updates save_orig_name if necessary.
- * IN assertions: save_orig_name is already set if ofname has been
- * already truncated because of NO_MULTIPLE_DOTS. The input file has
- * already been open and istat is set.
- */
-local int check_ofname()
-{
- struct stat ostat; /* stat for ofname */
-
-#ifdef ENAMETOOLONG
- /* Check for strictly conforming Posix systems (which return ENAMETOOLONG
- * instead of silently truncating filenames).
- */
- errno = 0;
- while (stat(ofname, &ostat) != 0) {
- if (errno != ENAMETOOLONG) return 0; /* ofname does not exist */
- shorten_name(ofname);
- }
-#else
- if (stat(ofname, &ostat) != 0) return 0;
-#endif
- /* Check for name truncation on existing file. Do this even on systems
- * defining ENAMETOOLONG, because on most systems the strict Posix
- * behavior is disabled by default (silent name truncation allowed).
- */
- if (!decompress && name_too_long(ofname, &ostat)) {
- shorten_name(ofname);
- if (stat(ofname, &ostat) != 0) return 0;
- }
-
- /* Check that the input and output files are different (could be
- * the same by name truncation or links).
- */
- if (same_file(&istat, &ostat)) {
- if (strequ(ifname, ofname)) {
- fprintf(stderr, "%s: %s: cannot %scompress onto itself\n",
- progname, ifname, decompress ? "de" : "");
- } else {
- fprintf(stderr, "%s: %s and %s are the same file\n",
- progname, ifname, ofname);
- }
- exit_code = ERROR;
- return ERROR;
- }
- /* Ask permission to overwrite the existing file */
- if (!force) {
- char response[80];
- strcpy(response,"n");
- fprintf(stderr, "%s: %s already exists;", progname, ofname);
- if (foreground && isatty(fileno(stdin))) {
- fprintf(stderr, " do you wish to overwrite (y or n)? ");
- fflush(stderr);
- (void)fgets(response, sizeof(response)-1, stdin);
- }
- if (tolow(*response) != 'y') {
- fprintf(stderr, "\tnot overwritten\n");
- if (exit_code == OK) exit_code = WARNING;
- return ERROR;
- }
- }
- if (unlink(ofname)) {
- fprintf(stderr, "%s: ", progname);
- perror(ofname);
- exit_code = ERROR;
- return ERROR;
- }
- return OK;
-}
-
-
-#ifndef NO_UTIME
-/* ========================================================================
- * Set the access and modification times from the given stat buffer.
- */
-local void reset_times (name, statb)
- char *name;
- struct stat *statb;
-{
- struct utimbuf timep;
-
- /* Copy the time stamp */
- timep.actime = statb->st_atime;
- timep.modtime = statb->st_mtime;
-
- /* Some systems (at least OS/2) do not support utime on directories */
- if (utime(name, &timep) && !S_ISDIR(statb->st_mode)) {
- WARN((stderr, "%s: ", progname));
- if (!quiet) perror(ofname);
- }
-}
-#endif
-
-
-/* ========================================================================
- * Copy modes, times, ownership from input file to output file.
- * IN assertion: to_stdout is false.
- */
-local void copy_stat(ifstat)
- struct stat *ifstat;
-{
-#ifndef NO_UTIME
- if (decompress && time_stamp != 0 && ifstat->st_mtime != time_stamp) {
- ifstat->st_mtime = time_stamp;
- if (verbose > 1) {
- fprintf(stderr, "%s: time stamp restored\n", ofname);
- }
- }
- reset_times(ofname, ifstat);
-#endif
- /* Copy the protection modes */
- if (fchmod(ofd, ifstat->st_mode & 07777)) {
- WARN((stderr, "%s: ", progname));
- if (!quiet) perror(ofname);
- }
-#ifndef NO_CHOWN
- (void) fchown(ofd, ifstat->st_uid, ifstat->st_gid); /* Copy ownership */
-#endif
- remove_ofname = 0;
- /* It's now safe to remove the input file: */
- if (unlink(ifname)) {
- WARN((stderr, "%s: ", progname));
- if (!quiet) perror(ifname);
- }
-}
-
-#ifndef NO_DIR
-
-/* ========================================================================
- * Recurse through the given directory. This code is taken from ncompress.
- */
-local void treat_dir(dir)
- char *dir;
-{
- dir_type *dp;
- DIR *dirp;
- char nbuf[MAX_PATH_LEN];
- int len;
-
- dirp = opendir(dir);
-
- if (dirp == NULL) {
- fprintf(stderr, "%s: %s unreadable\n", progname, dir);
- exit_code = ERROR;
- return ;
- }
- /*
- ** WARNING: the following algorithm could occasionally cause
- ** compress to produce error warnings of the form "<filename>.gz
- ** already has .gz suffix - ignored". This occurs when the
- ** .gz output file is inserted into the directory below
- ** readdir's current pointer.
- ** These warnings are harmless but annoying, so they are suppressed
- ** with option -r (except when -v is on). An alternative
- ** to allowing this would be to store the entire directory
- ** list in memory, then compress the entries in the stored
- ** list. Given the depth-first recursive algorithm used here,
- ** this could use up a tremendous amount of memory. I don't
- ** think it's worth it. -- Dave Mack
- ** (An other alternative might be two passes to avoid depth-first.)
- */
-
- while ((dp = readdir(dirp)) != NULL) {
-
- if (strequ(dp->d_name,".") || strequ(dp->d_name,"..")) {
- continue;
- }
- len = strlen(dir);
- if (len + NLENGTH(dp) + 1 < MAX_PATH_LEN - 1) {
- strcpy(nbuf,dir);
- if (len != 0 /* dir = "" means current dir on Amiga */
-#ifdef PATH_SEP2
- && dir[len-1] != PATH_SEP2
-#endif
-#ifdef PATH_SEP3
- && dir[len-1] != PATH_SEP3
-#endif
- ) {
- nbuf[len++] = PATH_SEP;
- }
- strcpy(nbuf+len, dp->d_name);
- treat_file(nbuf);
- } else {
- fprintf(stderr,"%s: %s/%s: pathname too long\n",
- progname, dir, dp->d_name);
- exit_code = ERROR;
- }
- }
- closedir(dirp);
-}
-#endif /* ? NO_DIR */
-
-/* ========================================================================
- * Free all dynamically allocated variables and exit with the given code.
- */
-local void do_exit(exitcode)
- int exitcode;
-{
- static int in_exit = 0;
-
- if (in_exit) exit(exitcode);
- in_exit = 1;
- if (env != NULL) free(env), env = NULL;
- if (args != NULL) free((char*)args), args = NULL;
- FREE(inbuf);
- FREE(outbuf);
- FREE(d_buf);
- FREE(window);
-#ifndef MAXSEG_64K
- FREE(tab_prefix);
-#else
- FREE(tab_prefix0);
- FREE(tab_prefix1);
-#endif
- exit(exitcode);
-}
-
-/* ========================================================================
- * Signal and error handler.
- */
-RETSIGTYPE abort_gzip()
-{
- if (remove_ofname) {
- close(ofd);
- unlink (ofname);
- }
- do_exit(ERROR);
-}
diff --git a/gnu/usr.bin/gzip/gzip.h b/gnu/usr.bin/gzip/gzip.h
deleted file mode 100644
index ee87690..0000000
--- a/gnu/usr.bin/gzip/gzip.h
+++ /dev/null
@@ -1,320 +0,0 @@
-/* gzip.h -- common declarations for all gzip modules
- * Copyright (C) 1992-1993 Jean-loup Gailly.
- * This is free software; you can redistribute it and/or modify it under the
- * terms of the GNU General Public License, see the file COPYING.
- *
- * $FreeBSD$
- */
-
-#if defined(__STDC__) || defined(PROTO)
-# define OF(args) args
-#else
-# define OF(args) ()
-#endif
-
-#ifdef __STDC__
- typedef void *voidp;
-#else
- typedef char *voidp;
-#endif
-
-/* I don't like nested includes, but the string and io functions are used
- * too often
- */
-#include <stdio.h>
-#if !defined(NO_STRING_H) || defined(STDC_HEADERS)
-# include <string.h>
-# if !defined(STDC_HEADERS) && !defined(NO_MEMORY_H) && !defined(__GNUC__)
-# include <memory.h>
-# endif
-# define memzero(s, n) memset ((voidp)(s), 0, (n))
-#else
-# include <strings.h>
-# define strchr index
-# define strrchr rindex
-# define memcpy(d, s, n) bcopy((s), (d), (n))
-# define memcmp(s1, s2, n) bcmp((s1), (s2), (n))
-# define memzero(s, n) bzero((s), (n))
-#endif
-
-#ifndef RETSIGTYPE
-# define RETSIGTYPE void
-#endif
-
-#define local static
-
-#include <stdint.h>
-typedef uint8_t uch;
-typedef uint16_t ush;
-typedef uint32_t ulg;
-
-/* Return codes from gzip */
-#define OK 0
-#define ERROR 1
-#define WARNING 2
-
-/* Compression methods (see algorithm.doc) */
-#define STORED 0
-#define COMPRESSED 1
-#define PACKED 2
-#define LZHED 3
-/* methods 4 to 7 reserved */
-#define DEFLATED 8
-#define MAX_METHODS 9
-extern int method; /* compression method */
-
-/* To save memory for 16 bit systems, some arrays are overlaid between
- * the various modules:
- * deflate: prev+head window d_buf l_buf outbuf
- * unlzw: tab_prefix tab_suffix stack inbuf outbuf
- * inflate: window inbuf
- * unpack: window inbuf prefix_len
- * unlzh: left+right window c_table inbuf c_len
- * For compression, input is done in window[]. For decompression, output
- * is done in window except for unlzw.
- */
-
-#ifndef INBUFSIZ
-# ifdef SMALL_MEM
-# define INBUFSIZ 0x2000 /* input buffer size */
-# else
-# define INBUFSIZ 0x8000 /* input buffer size */
-# endif
-#endif
-#define INBUF_EXTRA 64 /* required by unlzw() */
-
-#ifndef OUTBUFSIZ
-# ifdef SMALL_MEM
-# define OUTBUFSIZ 8192 /* output buffer size */
-# else
-# define OUTBUFSIZ 16384 /* output buffer size */
-# endif
-#endif
-#define OUTBUF_EXTRA 2048 /* required by unlzw() */
-
-#ifndef DIST_BUFSIZE
-# ifdef SMALL_MEM
-# define DIST_BUFSIZE 0x2000 /* buffer for distances, see trees.c */
-# else
-# define DIST_BUFSIZE 0x8000 /* buffer for distances, see trees.c */
-# endif
-#endif
-
-#ifdef DYN_ALLOC
-# define EXTERN(type, array) extern type * near array
-# define DECLARE(type, array, size) type * near array
-# define ALLOC(type, array, size) { \
- array = (type*)fcalloc((size_t)(((size)+1L)/2), 2*sizeof(type)); \
- if (array == NULL) error("insufficient memory"); \
- }
-# define FREE(array) {if (array != NULL) fcfree(array), array=NULL;}
-#else
-# define EXTERN(type, array) extern type array[]
-# define DECLARE(type, array, size) type array[size]
-# define ALLOC(type, array, size)
-# define FREE(array)
-#endif
-
-EXTERN(uch, inbuf); /* input buffer */
-EXTERN(uch, outbuf); /* output buffer */
-EXTERN(ush, d_buf); /* buffer for distances, see trees.c */
-EXTERN(uch, window); /* Sliding window and suffix table (unlzw) */
-#define tab_suffix window
-#ifndef MAXSEG_64K
-# define tab_prefix prev /* hash link (see deflate.c) */
-# define head (prev+WSIZE) /* hash head (see deflate.c) */
- EXTERN(ush, tab_prefix); /* prefix code (see unlzw.c) */
-#else
-# define tab_prefix0 prev
-# define head tab_prefix1
- EXTERN(ush, tab_prefix0); /* prefix for even codes */
- EXTERN(ush, tab_prefix1); /* prefix for odd codes */
-#endif
-
-extern unsigned insize; /* valid bytes in inbuf */
-extern unsigned inptr; /* index of next byte to be processed in inbuf */
-extern unsigned outcnt; /* bytes in output buffer */
-
-extern long bytes_in; /* number of input bytes */
-extern long bytes_out; /* number of output bytes */
-extern long header_bytes;/* number of bytes in gzip header */
-
-#define isize bytes_in
-/* for compatibility with old zip sources (to be cleaned) */
-
-extern int ifd; /* input file descriptor */
-extern int ofd; /* output file descriptor */
-extern char ifname[]; /* input file name or "stdin" */
-extern char ofname[]; /* output file name or "stdout" */
-extern char *progname; /* program name */
-
-extern long time_stamp; /* original time stamp (modification time) */
-extern long ifile_size; /* input file size, -1 for devices (debug only) */
-
-typedef int file_t; /* Do not use stdio */
-#define NO_FILE (-1) /* in memory compression */
-
-
-#define PACK_MAGIC "\037\036" /* Magic header for packed files */
-#define GZIP_MAGIC "\037\213" /* Magic header for gzip files, 1F 8B */
-#define OLD_GZIP_MAGIC "\037\236" /* Magic header for gzip 0.5 = freeze 1.x */
-#define LZH_MAGIC "\037\240" /* Magic header for SCO LZH Compress files*/
-#define PKZIP_MAGIC "\120\113\003\004" /* Magic header for pkzip files */
-
-/* gzip flag byte */
-#define ASCII_FLAG 0x01 /* bit 0 set: file probably ascii text */
-#define CONTINUATION 0x02 /* bit 1 set: continuation of multi-part gzip file */
-#define EXTRA_FIELD 0x04 /* bit 2 set: extra field present */
-#define ORIG_NAME 0x08 /* bit 3 set: original file name present */
-#define COMMENT 0x10 /* bit 4 set: file comment present */
-#define ENCRYPTED 0x20 /* bit 5 set: file is encrypted */
-#define RESERVED 0xC0 /* bit 6,7: reserved */
-
-/* internal file attribute */
-#define UNKNOWN 0xffff
-#define BINARY 0
-#define ASCII 1
-
-#ifndef WSIZE
-# define WSIZE 0x8000 /* window size--must be a power of two, and */
-#endif /* at least 32K for zip's deflate method */
-
-#define MIN_MATCH 3
-#define MAX_MATCH 258
-/* The minimum and maximum match lengths */
-
-#define MIN_LOOKAHEAD (MAX_MATCH+MIN_MATCH+1)
-/* Minimum amount of lookahead, except at the end of the input file.
- * See deflate.c for comments about the MIN_MATCH+1.
- */
-
-#define MAX_DIST (WSIZE-MIN_LOOKAHEAD)
-/* In order to simplify the code, particularly on 16 bit machines, match
- * distances are limited to MAX_DIST instead of WSIZE.
- */
-
-extern int decrypt; /* flag to turn on decryption */
-extern int exit_code; /* program exit code */
-extern int verbose; /* be verbose (-v) */
-extern int quiet; /* be quiet (-q) */
-extern int level; /* compression level */
-extern int test; /* check .z file integrity */
-extern int to_stdout; /* output to stdout (-c) */
-extern int save_orig_name; /* set if original name must be saved */
-
-#define MIN(a,b) ((a) <= (b) ? (a) : (b))
-
-#define get_byte() (inptr < insize ? inbuf[inptr++] : fill_inbuf(0))
-#define try_byte() (inptr < insize ? inbuf[inptr++] : fill_inbuf(1))
-
-/* put_byte is used for the compressed output, put_ubyte for the
- * uncompressed output. However unlzw() uses window for its
- * suffix table instead of its output buffer, so it does not use put_ubyte
- * (to be cleaned up).
- */
-#define put_byte(c) {outbuf[outcnt++]=(uch)(c); if (outcnt==OUTBUFSIZ)\
- flush_outbuf();}
-#define put_ubyte(c) {window[outcnt++]=(uch)(c); if (outcnt==WSIZE)\
- flush_window();}
-
-/* Output a 16 bit value, lsb first */
-#define put_short(w) \
-{ if (outcnt < OUTBUFSIZ-2) { \
- outbuf[outcnt++] = (uch) ((w) & 0xff); \
- outbuf[outcnt++] = (uch) ((ush)(w) >> 8); \
- } else { \
- put_byte((uch)((w) & 0xff)); \
- put_byte((uch)((ush)(w) >> 8)); \
- } \
-}
-
-/* Output a 32 bit value to the bit stream, lsb first */
-#define put_long(n) { \
- put_short((n) & 0xffff); \
- put_short(((ulg)(n)) >> 16); \
-}
-
-#define seekable() 0 /* force sequential output */
-#define translate_eol 0 /* no option -a yet */
-
-#define tolow(c) (isupper(c) ? (c)-'A'+'a' : (c)) /* force to lower case */
-
-/* Macros for getting two-byte and four-byte header values */
-#define SH(p) ((ush)(uch)((p)[0]) | ((ush)(uch)((p)[1]) << 8))
-#define LG(p) ((ulg)(SH(p)) | ((ulg)(SH((p)+2)) << 16))
-
-/* Diagnostic functions */
-#ifdef DEBUG
-# define Assert(cond,msg) {if(!(cond)) error(msg);}
-# define Trace(x) fprintf x
-# define Tracev(x) {if (verbose) fprintf x ;}
-# define Tracevv(x) {if (verbose>1) fprintf x ;}
-# define Tracec(c,x) {if (verbose && (c)) fprintf x ;}
-# define Tracecv(c,x) {if (verbose>1 && (c)) fprintf x ;}
-#else
-# define Assert(cond,msg)
-# define Trace(x)
-# define Tracev(x)
-# define Tracevv(x)
-# define Tracec(c,x)
-# define Tracecv(c,x)
-#endif
-
-#define WARN(msg) {if (!quiet) fprintf msg ; \
- if (exit_code == OK) exit_code = WARNING;}
-
- /* in zip.c: */
-extern int zip OF((int in, int out));
-extern int file_read OF((char *buf, unsigned size));
-
- /* in unzip.c */
-extern int unzip OF((int in, int out));
-extern int check_zipfile OF((int in));
-
- /* in unpack.c */
-extern int unpack OF((int in, int out));
-
- /* in unlzh.c */
-extern int unlzh OF((int in, int out));
-
- /* in gzip.c */
-RETSIGTYPE abort_gzip OF((void));
-
- /* in deflate.c */
-void lm_init OF((int pack_level, ush *flags));
-ulg deflate OF((void));
-
- /* in trees.c */
-void ct_init OF((ush *attr, int *method));
-int ct_tally OF((int dist, int lc));
-ulg flush_block OF((char *buf, ulg stored_len, int eof));
-
- /* in bits.c */
-void bi_init OF((file_t zipfile));
-void send_bits OF((int value, int length));
-unsigned bi_reverse OF((unsigned value, int length));
-void bi_windup OF((void));
-void copy_block OF((char *buf, unsigned len, int header));
-extern int (*read_buf) OF((char *buf, unsigned size));
-
- /* in util.c: */
-extern int copy OF((int in, int out));
-extern ulg updcrc OF((uch *s, unsigned n));
-extern void clear_bufs OF((void));
-extern int fill_inbuf OF((int eof_ok));
-extern void flush_outbuf OF((void));
-extern void flush_window OF((void));
-extern void write_buf OF((int fd, voidp buf, unsigned cnt));
-extern char *strlwr OF((char *s));
-extern char *basename OF((char *fname));
-extern void make_simple_name OF((char *name));
-extern char *add_envopt OF((int *argcp, char ***argvp, char *env));
-extern void error OF((char *m));
-extern void warn OF((char *a, char *b));
-extern void read_error OF((void));
-extern void write_error OF((void));
-extern void display_ratio OF((long num, long den, FILE *file));
-extern voidp xmalloc OF((unsigned int size));
-
- /* in inflate.c */
-extern int inflate OF((void));
diff --git a/gnu/usr.bin/gzip/inflate.c b/gnu/usr.bin/gzip/inflate.c
deleted file mode 100644
index f1b0a25..0000000
--- a/gnu/usr.bin/gzip/inflate.c
+++ /dev/null
@@ -1,958 +0,0 @@
-/* inflate.c -- Not copyrighted 1992 by Mark Adler
- version c10p1, 10 January 1993 */
-
-/* You can do whatever you like with this source file, though I would
- prefer that if you modify it and redistribute it that you include
- comments to that effect with your name and the date. Thank you.
- [The history has been moved to the file ChangeLog.]
- */
-
-/*
- Inflate deflated (PKZIP's method 8 compressed) data. The compression
- method searches for as much of the current string of bytes (up to a
- length of 258) in the previous 32K bytes. If it doesn't find any
- matches (of at least length 3), it codes the next byte. Otherwise, it
- codes the length of the matched string and its distance backwards from
- the current position. There is a single Huffman code that codes both
- single bytes (called "literals") and match lengths. A second Huffman
- code codes the distance information, which follows a length code. Each
- length or distance code actually represents a base value and a number
- of "extra" (sometimes zero) bits to get to add to the base value. At
- the end of each deflated block is a special end-of-block (EOB) literal/
- length code. The decoding process is basically: get a literal/length
- code; if EOB then done; if a literal, emit the decoded byte; if a
- length then get the distance and emit the referred-to bytes from the
- sliding window of previously emitted data.
-
- There are (currently) three kinds of inflate blocks: stored, fixed, and
- dynamic. The compressor deals with some chunk of data at a time, and
- decides which method to use on a chunk-by-chunk basis. A chunk might
- typically be 32K or 64K. If the chunk is uncompressible, then the
- "stored" method is used. In this case, the bytes are simply stored as
- is, eight bits per byte, with none of the above coding. The bytes are
- preceded by a count, since there is no longer an EOB code.
-
- If the data is compressible, then either the fixed or dynamic methods
- are used. In the dynamic method, the compressed data is preceded by
- an encoding of the literal/length and distance Huffman codes that are
- to be used to decode this block. The representation is itself Huffman
- coded, and so is preceded by a description of that code. These code
- descriptions take up a little space, and so for small blocks, there is
- a predefined set of codes, called the fixed codes. The fixed method is
- used if the block codes up smaller that way (usually for quite small
- chunks), otherwise the dynamic method is used. In the latter case, the
- codes are customized to the probabilities in the current block, and so
- can code it much better than the pre-determined fixed codes.
-
- The Huffman codes themselves are decoded using a mutli-level table
- lookup, in order to maximize the speed of decoding plus the speed of
- building the decoding tables. See the comments below that precede the
- lbits and dbits tuning parameters.
- */
-
-
-/*
- Notes beyond the 1.93a appnote.txt:
-
- 1. Distance pointers never point before the beginning of the output
- stream.
- 2. Distance pointers can point back across blocks, up to 32k away.
- 3. There is an implied maximum of 7 bits for the bit length table and
- 15 bits for the actual data.
- 4. If only one code exists, then it is encoded using one bit. (Zero
- would be more efficient, but perhaps a little confusing.) If two
- codes exist, they are coded using one bit each (0 and 1).
- 5. There is no way of sending zero distance codes--a dummy must be
- sent if there are none. (History: a pre 2.0 version of PKZIP would
- store blocks with no distance codes, but this was discovered to be
- too harsh a criterion.) Valid only for 1.93a. 2.04c does allow
- zero distance codes, which is sent as one code of zero bits in
- length.
- 6. There are up to 286 literal/length codes. Code 256 represents the
- end-of-block. Note however that the static length tree defines
- 288 codes just to fill out the Huffman codes. Codes 286 and 287
- cannot be used though, since there is no length base or extra bits
- defined for them. Similarly, there are up to 30 distance codes.
- However, static trees define 32 codes (all 5 bits) to fill out the
- Huffman codes, but the last two had better not show up in the data.
- 7. Unzip can check dynamic Huffman blocks for complete code sets.
- The exception is that a single code would not be complete (see #4).
- 8. The five bits following the block type is really the number of
- literal codes sent minus 257.
- 9. Length codes 8,16,16 are interpreted as 13 length codes of 8 bits
- (1+6+6). Therefore, to output three times the length, you output
- three codes (1+1+1), whereas to output four times the same length,
- you only need two codes (1+3). Hmm.
- 10. In the tree reconstruction algorithm, Code = Code + Increment
- only if BitLength(i) is not zero. (Pretty obvious.)
- 11. Correction: 4 Bits: # of Bit Length codes - 4 (4 - 19)
- 12. Note: length code 284 can represent 227-258, but length code 285
- really is 258. The last length deserves its own, short code
- since it gets used a lot in very redundant files. The length
- 258 is special since 258 - 3 (the min match length) is 255.
- 13. The literal/length and distance code bit lengths are read as a
- single stream of lengths. It is possible (and advantageous) for
- a repeat code (16, 17, or 18) to go across the boundary between
- the two sets of lengths.
- */
-
-#ifdef RCSID
-static char rcsid[] = "$FreeBSD$";
-#endif
-
-#include <sys/types.h>
-
-#include "tailor.h"
-
-#if defined(STDC_HEADERS) || !defined(NO_STDLIB_H)
-# include <stdlib.h>
-#endif
-
-#include "gzip.h"
-#define slide window
-
-/* Huffman code lookup table entry--this entry is four bytes for machines
- that have 16-bit pointers (e.g. PC's in the small or medium model).
- Valid extra bits are 0..13. e == 15 is EOB (end of block), e == 16
- means that v is a literal, 16 < e < 32 means that v is a pointer to
- the next table, which codes e - 16 bits, and lastly e == 99 indicates
- an unused code. If a code with e == 99 is looked up, this implies an
- error in the data. */
-struct huft {
- uch e; /* number of extra bits or operation */
- uch b; /* number of bits in this code or subcode */
- union {
- ush n; /* literal, length base, or distance base */
- struct huft *t; /* pointer to next level of table */
- } v;
-};
-
-
-/* Function prototypes */
-int huft_build OF((unsigned *, unsigned, unsigned, ush *, ush *,
- struct huft **, int *));
-int huft_free OF((struct huft *));
-int inflate_codes OF((struct huft *, struct huft *, int, int));
-int inflate_stored OF((void));
-int inflate_fixed OF((void));
-int inflate_dynamic OF((void));
-int inflate_block OF((int *));
-int inflate OF((void));
-
-
-/* The inflate algorithm uses a sliding 32K byte window on the uncompressed
- stream to find repeated byte strings. This is implemented here as a
- circular buffer. The index is updated simply by incrementing and then
- and'ing with 0x7fff (32K-1). */
-/* It is left to other modules to supply the 32K area. It is assumed
- to be usable as if it were declared "uch slide[32768];" or as just
- "uch *slide;" and then malloc'ed in the latter case. The definition
- must be in unzip.h, included above. */
-/* unsigned wp; current position in slide */
-#define wp outcnt
-#define flush_output(w) (wp=(w),flush_window())
-
-/* Tables for deflate from PKZIP's appnote.txt. */
-static unsigned border[] = { /* Order of the bit length code lengths */
- 16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15};
-static ush cplens[] = { /* Copy lengths for literal codes 257..285 */
- 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 15, 17, 19, 23, 27, 31,
- 35, 43, 51, 59, 67, 83, 99, 115, 131, 163, 195, 227, 258, 0, 0};
- /* note: see note #13 above about the 258 in this list. */
-static ush cplext[] = { /* Extra bits for literal codes 257..285 */
- 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 2, 2,
- 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 0, 99, 99}; /* 99==invalid */
-static ush cpdist[] = { /* Copy offsets for distance codes 0..29 */
- 1, 2, 3, 4, 5, 7, 9, 13, 17, 25, 33, 49, 65, 97, 129, 193,
- 257, 385, 513, 769, 1025, 1537, 2049, 3073, 4097, 6145,
- 8193, 12289, 16385, 24577};
-static ush cpdext[] = { /* Extra bits for distance codes */
- 0, 0, 0, 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6,
- 7, 7, 8, 8, 9, 9, 10, 10, 11, 11,
- 12, 12, 13, 13};
-
-
-
-/* Macros for inflate() bit peeking and grabbing.
- The usage is:
-
- NEEDBITS(j)
- x = b & mask_bits[j];
- DUMPBITS(j)
-
- where NEEDBITS makes sure that b has at least j bits in it, and
- DUMPBITS removes the bits from b. The macros use the variable k
- for the number of bits in b. Normally, b and k are register
- variables for speed, and are initialized at the beginning of a
- routine that uses these macros from a global bit buffer and count.
-
- If we assume that EOB will be the longest code, then we will never
- ask for bits with NEEDBITS that are beyond the end of the stream.
- So, NEEDBITS should not read any more bytes than are needed to
- meet the request. Then no bytes need to be "returned" to the buffer
- at the end of the last block.
-
- However, this assumption is not true for fixed blocks--the EOB code
- is 7 bits, but the other literal/length codes can be 8 or 9 bits.
- (The EOB code is shorter than other codes because fixed blocks are
- generally short. So, while a block always has an EOB, many other
- literal/length codes have a significantly lower probability of
- showing up at all.) However, by making the first table have a
- lookup of seven bits, the EOB code will be found in that first
- lookup, and so will not require that too many bits be pulled from
- the stream.
- */
-
-ulg bb; /* bit buffer */
-unsigned bk; /* bits in bit buffer */
-
-ush mask_bits[] = {
- 0x0000,
- 0x0001, 0x0003, 0x0007, 0x000f, 0x001f, 0x003f, 0x007f, 0x00ff,
- 0x01ff, 0x03ff, 0x07ff, 0x0fff, 0x1fff, 0x3fff, 0x7fff, 0xffff
-};
-
-#ifdef CRYPT
- uch cc;
-# define NEXTBYTE() \
- (decrypt ? (cc = get_byte(), zdecode(cc), cc) : get_byte())
-#else
-# define NEXTBYTE() (uch)get_byte()
-#endif
-#define NEEDBITS(n) {while(k<(n)){b|=((ulg)NEXTBYTE())<<k;k+=8;}}
-#define DUMPBITS(n) {b>>=(n);k-=(n);}
-
-
-/*
- Huffman code decoding is performed using a multi-level table lookup.
- The fastest way to decode is to simply build a lookup table whose
- size is determined by the longest code. However, the time it takes
- to build this table can also be a factor if the data being decoded
- is not very long. The most common codes are necessarily the
- shortest codes, so those codes dominate the decoding time, and hence
- the speed. The idea is you can have a shorter table that decodes the
- shorter, more probable codes, and then point to subsidiary tables for
- the longer codes. The time it costs to decode the longer codes is
- then traded against the time it takes to make longer tables.
-
- This results of this trade are in the variables lbits and dbits
- below. lbits is the number of bits the first level table for literal/
- length codes can decode in one step, and dbits is the same thing for
- the distance codes. Subsequent tables are also less than or equal to
- those sizes. These values may be adjusted either when all of the
- codes are shorter than that, in which case the longest code length in
- bits is used, or when the shortest code is *longer* than the requested
- table size, in which case the length of the shortest code in bits is
- used.
-
- There are two different values for the two tables, since they code a
- different number of possibilities each. The literal/length table
- codes 286 possible values, or in a flat code, a little over eight
- bits. The distance table codes 30 possible values, or a little less
- than five bits, flat. The optimum values for speed end up being
- about one bit more than those, so lbits is 8+1 and dbits is 5+1.
- The optimum values may differ though from machine to machine, and
- possibly even between compilers. Your mileage may vary.
- */
-
-
-int lbits = 9; /* bits in base literal/length lookup table */
-int dbits = 6; /* bits in base distance lookup table */
-
-
-/* If BMAX needs to be larger than 16, then h and x[] should be ulg. */
-#define BMAX 16 /* maximum bit length of any code (16 for explode) */
-#define N_MAX 288 /* maximum number of codes in any set */
-
-
-unsigned hufts; /* track memory usage */
-
-
-int huft_build(b, n, s, d, e, t, m)
-unsigned *b; /* code lengths in bits (all assumed <= BMAX) */
-unsigned n; /* number of codes (assumed <= N_MAX) */
-unsigned s; /* number of simple-valued codes (0..s-1) */
-ush *d; /* list of base values for non-simple codes */
-ush *e; /* list of extra bits for non-simple codes */
-struct huft **t; /* result: starting table */
-int *m; /* maximum lookup bits, returns actual */
-/* Given a list of code lengths and a maximum table size, make a set of
- tables to decode that set of codes. Return zero on success, one if
- the given code set is incomplete (the tables are still built in this
- case), two if the input is invalid (all zero length codes or an
- oversubscribed set of lengths), and three if not enough memory. */
-{
- unsigned a; /* counter for codes of length k */
- unsigned c[BMAX+1]; /* bit length count table */
- unsigned f; /* i repeats in table every f entries */
- int g; /* maximum code length */
- int h; /* table level */
- register unsigned i; /* counter, current code */
- register unsigned j; /* counter */
- register int k; /* number of bits in current code */
- int l; /* bits per table (returned in m) */
- register unsigned *p; /* pointer into c[], b[], or v[] */
- register struct huft *q; /* points to current table */
- struct huft r; /* table entry for structure assignment */
- struct huft *u[BMAX]; /* table stack */
- unsigned v[N_MAX]; /* values in order of bit length */
- register int w; /* bits before this table == (l * h) */
- unsigned x[BMAX+1]; /* bit offsets, then code stack */
- unsigned *xp; /* pointer into x */
- int y; /* number of dummy codes added */
- unsigned z; /* number of entries in current table */
-
-
- /* Generate counts for each bit length */
- memzero(c, sizeof(c));
- p = b; i = n;
- do {
- Tracecv(*p, (stderr, (n-i >= ' ' && n-i <= '~' ? "%c %d\n" : "0x%x %d\n"),
- n-i, *p));
- c[*p]++; /* assume all entries <= BMAX */
- p++; /* Can't combine with above line (Solaris bug) */
- } while (--i);
- if (c[0] == n) /* null input--all zero length codes */
- {
- *t = (struct huft *)NULL;
- *m = 0;
- return 2;
- }
-
-
- /* Find minimum and maximum length, bound *m by those */
- l = *m;
- for (j = 1; j <= BMAX; j++)
- if (c[j])
- break;
- k = j; /* minimum code length */
- if ((unsigned)l < j)
- l = j;
- for (i = BMAX; i; i--)
- if (c[i])
- break;
- g = i; /* maximum code length */
- if ((unsigned)l > i)
- l = i;
- *m = l;
-
-
- /* Adjust last length count to fill out codes, if needed */
- for (y = 1 << j; j < i; j++, y <<= 1)
- if ((y -= c[j]) < 0)
- return 2; /* bad input: more codes than bits */
- if ((y -= c[i]) < 0)
- return 2;
- c[i] += y;
-
-
- /* Generate starting offsets into the value table for each length */
- x[1] = j = 0;
- p = c + 1; xp = x + 2;
- while (--i) { /* note that i == g from above */
- *xp++ = (j += *p++);
- }
-
-
- /* Make a table of values in order of bit lengths */
- p = b; i = 0;
- do {
- if ((j = *p++) != 0)
- v[x[j]++] = i;
- } while (++i < n);
- n = x[g]; /* set n to length of v */
-
-
- /* Generate the Huffman codes and for each, make the table entries */
- x[0] = i = 0; /* first Huffman code is zero */
- p = v; /* grab values in bit order */
- h = -1; /* no tables yet--level -1 */
- w = -l; /* bits decoded == (l * h) */
- u[0] = (struct huft *)NULL; /* just to keep compilers happy */
- q = (struct huft *)NULL; /* ditto */
- z = 0; /* ditto */
-
- /* go through the bit lengths (k already is bits in shortest code) */
- for (; k <= g; k++)
- {
- a = c[k];
- while (a--)
- {
- /* here i is the Huffman code of length k bits for value *p */
- /* make tables up to required level */
- while (k > w + l)
- {
- h++;
- w += l; /* previous table always l bits */
-
- /* compute minimum size table less than or equal to l bits */
- z = (z = g - w) > (unsigned)l ? l : z; /* upper limit on table size */
- if ((f = 1 << (j = k - w)) > a + 1) /* try a k-w bit table */
- { /* too few codes for k-w bit table */
- f -= a + 1; /* deduct codes from patterns left */
- xp = c + k;
- if (j < z)
- while (++j < z) /* try smaller tables up to z bits */
- {
- if ((f <<= 1) <= *++xp)
- break; /* enough codes to use up j bits */
- f -= *xp; /* else deduct codes from patterns */
- }
- }
- z = 1 << j; /* table entries for j-bit table */
-
- /* allocate and link in new table */
- if ((q = (struct huft *)malloc((z + 1)*sizeof(struct huft))) ==
- (struct huft *)NULL)
- {
- if (h)
- huft_free(u[0]);
- return 3; /* not enough memory */
- }
- hufts += z + 1; /* track memory usage */
- *t = q + 1; /* link to list for huft_free() */
- *(t = &(q->v.t)) = (struct huft *)NULL;
- u[h] = ++q; /* table starts after link */
-
- /* connect to last table, if there is one */
- if (h)
- {
- x[h] = i; /* save pattern for backing up */
- r.b = (uch)l; /* bits to dump before this table */
- r.e = (uch)(16 + j); /* bits in this table */
- r.v.t = q; /* pointer to this table */
- j = i >> (w - l); /* (get around Turbo C bug) */
- u[h-1][j] = r; /* connect to last table */
- }
- }
-
- /* set up table entry in r */
- r.b = (uch)(k - w);
- if (p >= v + n)
- r.e = 99; /* out of values--invalid code */
- else if (*p < s)
- {
- r.e = (uch)(*p < 256 ? 16 : 15); /* 256 is end-of-block code */
- r.v.n = (ush)(*p); /* simple code is just the value */
- p++; /* one compiler does not like *p++ */
- }
- else
- {
- r.e = (uch)e[*p - s]; /* non-simple--look up in lists */
- r.v.n = d[*p++ - s];
- }
-
- /* fill code-like entries with r */
- f = 1 << (k - w);
- for (j = i >> w; j < z; j += f)
- q[j] = r;
-
- /* backwards increment the k-bit code i */
- for (j = 1 << (k - 1); i & j; j >>= 1)
- i ^= j;
- i ^= j;
-
- /* backup over finished tables */
- while ((i & ((1 << w) - 1)) != x[h])
- {
- h--; /* don't need to update q */
- w -= l;
- }
- }
- }
-
-
- /* Return true (1) if we were given an incomplete table */
- return y != 0 && g != 1;
-}
-
-
-
-int huft_free(t)
-struct huft *t; /* table to free */
-/* Free the malloc'ed tables built by huft_build(), which makes a linked
- list of the tables it made, with the links in a dummy first entry of
- each table. */
-{
- register struct huft *p, *q;
-
-
- /* Go through linked list, freeing from the malloced (t[-1]) address. */
- p = t;
- while (p != (struct huft *)NULL)
- {
- q = (--p)->v.t;
- free((char*)p);
- p = q;
- }
- return 0;
-}
-
-
-int inflate_codes(tl, td, bl, bd)
-struct huft *tl, *td; /* literal/length and distance decoder tables */
-int bl, bd; /* number of bits decoded by tl[] and td[] */
-/* inflate (decompress) the codes in a deflated (compressed) block.
- Return an error code or zero if it all goes ok. */
-{
- register unsigned e; /* table entry flag/number of extra bits */
- unsigned n, d; /* length and index for copy */
- unsigned w; /* current window position */
- struct huft *t; /* pointer to table entry */
- unsigned ml, md; /* masks for bl and bd bits */
- register ulg b; /* bit buffer */
- register unsigned k; /* number of bits in bit buffer */
-
-
- /* make local copies of globals */
- b = bb; /* initialize bit buffer */
- k = bk;
- w = wp; /* initialize window position */
-
- /* inflate the coded data */
- ml = mask_bits[bl]; /* precompute masks for speed */
- md = mask_bits[bd];
- for (;;) /* do until end of block */
- {
- NEEDBITS((unsigned)bl)
- if ((e = (t = tl + ((unsigned)b & ml))->e) > 16)
- do {
- if (e == 99)
- return 1;
- DUMPBITS(t->b)
- e -= 16;
- NEEDBITS(e)
- } while ((e = (t = t->v.t + ((unsigned)b & mask_bits[e]))->e) > 16);
- DUMPBITS(t->b)
- if (e == 16) /* then it's a literal */
- {
- slide[w++] = (uch)t->v.n;
- Tracevv((stderr, "%c", slide[w-1]));
- if (w == WSIZE)
- {
- flush_output(w);
- w = 0;
- }
- }
- else /* it's an EOB or a length */
- {
- /* exit if end of block */
- if (e == 15)
- break;
-
- /* get length of block to copy */
- NEEDBITS(e)
- n = t->v.n + ((unsigned)b & mask_bits[e]);
- DUMPBITS(e);
-
- /* decode distance of block to copy */
- NEEDBITS((unsigned)bd)
- if ((e = (t = td + ((unsigned)b & md))->e) > 16)
- do {
- if (e == 99)
- return 1;
- DUMPBITS(t->b)
- e -= 16;
- NEEDBITS(e)
- } while ((e = (t = t->v.t + ((unsigned)b & mask_bits[e]))->e) > 16);
- DUMPBITS(t->b)
- NEEDBITS(e)
- d = w - t->v.n - ((unsigned)b & mask_bits[e]);
- DUMPBITS(e)
- Tracevv((stderr,"\\[%d,%d]", w-d, n));
-
- /* do the copy */
- do {
- n -= (e = (e = WSIZE - ((d &= WSIZE-1) > w ? d : w)) > n ? n : e);
-#if !defined(NOMEMCPY) && !defined(DEBUG)
- if (w - d >= e) /* (this test assumes unsigned comparison) */
- {
- memcpy(slide + w, slide + d, e);
- w += e;
- d += e;
- }
- else /* do it slow to avoid memcpy() overlap */
-#endif /* !NOMEMCPY */
- do {
- slide[w++] = slide[d++];
- Tracevv((stderr, "%c", slide[w-1]));
- } while (--e);
- if (w == WSIZE)
- {
- flush_output(w);
- w = 0;
- }
- } while (n);
- }
- }
-
-
- /* restore the globals from the locals */
- wp = w; /* restore global window pointer */
- bb = b; /* restore global bit buffer */
- bk = k;
-
- /* done */
- return 0;
-}
-
-
-
-int inflate_stored()
-/* "decompress" an inflated type 0 (stored) block. */
-{
- unsigned n; /* number of bytes in block */
- unsigned w; /* current window position */
- register ulg b; /* bit buffer */
- register unsigned k; /* number of bits in bit buffer */
-
-
- /* make local copies of globals */
- b = bb; /* initialize bit buffer */
- k = bk;
- w = wp; /* initialize window position */
-
-
- /* go to byte boundary */
- n = k & 7;
- DUMPBITS(n);
-
-
- /* get the length and its complement */
- NEEDBITS(16)
- n = ((unsigned)b & 0xffff);
- DUMPBITS(16)
- NEEDBITS(16)
- if (n != (unsigned)((~b) & 0xffff))
- return 1; /* error in compressed data */
- DUMPBITS(16)
-
-
- /* read and output the compressed data */
- while (n--)
- {
- NEEDBITS(8)
- slide[w++] = (uch)b;
- if (w == WSIZE)
- {
- flush_output(w);
- w = 0;
- }
- DUMPBITS(8)
- }
-
-
- /* restore the globals from the locals */
- wp = w; /* restore global window pointer */
- bb = b; /* restore global bit buffer */
- bk = k;
- return 0;
-}
-
-
-
-int inflate_fixed()
-/* decompress an inflated type 1 (fixed Huffman codes) block. We should
- either replace this with a custom decoder, or at least precompute the
- Huffman tables. */
-{
- int i; /* temporary variable */
- struct huft *tl; /* literal/length code table */
- struct huft *td; /* distance code table */
- int bl; /* lookup bits for tl */
- int bd; /* lookup bits for td */
- unsigned l[288]; /* length list for huft_build */
-
-
- /* set up literal table */
- for (i = 0; i < 144; i++)
- l[i] = 8;
- for (; i < 256; i++)
- l[i] = 9;
- for (; i < 280; i++)
- l[i] = 7;
- for (; i < 288; i++) /* make a complete, but wrong code set */
- l[i] = 8;
- bl = 7;
- if ((i = huft_build(l, 288, 257, cplens, cplext, &tl, &bl)) != 0)
- return i;
-
-
- /* set up distance table */
- for (i = 0; i < 30; i++) /* make an incomplete code set */
- l[i] = 5;
- bd = 5;
- if ((i = huft_build(l, 30, 0, cpdist, cpdext, &td, &bd)) > 1)
- {
- huft_free(tl);
- return i;
- }
-
-
- /* decompress until an end-of-block code */
- if (inflate_codes(tl, td, bl, bd))
- return 1;
-
-
- /* free the decoding tables, return */
- huft_free(tl);
- huft_free(td);
- return 0;
-}
-
-
-
-int inflate_dynamic()
-/* decompress an inflated type 2 (dynamic Huffman codes) block. */
-{
- int i; /* temporary variables */
- unsigned j;
- unsigned l; /* last length */
- unsigned m; /* mask for bit lengths table */
- unsigned n; /* number of lengths to get */
- struct huft *tl; /* literal/length code table */
- struct huft *td; /* distance code table */
- int bl; /* lookup bits for tl */
- int bd; /* lookup bits for td */
- unsigned nb; /* number of bit length codes */
- unsigned nl; /* number of literal/length codes */
- unsigned nd; /* number of distance codes */
-#ifdef PKZIP_BUG_WORKAROUND
- unsigned ll[288+32]; /* literal/length and distance code lengths */
-#else
- unsigned ll[286+30]; /* literal/length and distance code lengths */
-#endif
- register ulg b; /* bit buffer */
- register unsigned k; /* number of bits in bit buffer */
-
-
- /* make local bit buffer */
- b = bb;
- k = bk;
-
-
- /* read in table lengths */
- NEEDBITS(5)
- nl = 257 + ((unsigned)b & 0x1f); /* number of literal/length codes */
- DUMPBITS(5)
- NEEDBITS(5)
- nd = 1 + ((unsigned)b & 0x1f); /* number of distance codes */
- DUMPBITS(5)
- NEEDBITS(4)
- nb = 4 + ((unsigned)b & 0xf); /* number of bit length codes */
- DUMPBITS(4)
-#ifdef PKZIP_BUG_WORKAROUND
- if (nl > 288 || nd > 32)
-#else
- if (nl > 286 || nd > 30)
-#endif
- return 1; /* bad lengths */
-
-
- /* read in bit-length-code lengths */
- for (j = 0; j < nb; j++)
- {
- NEEDBITS(3)
- ll[border[j]] = (unsigned)b & 7;
- DUMPBITS(3)
- }
- for (; j < 19; j++)
- ll[border[j]] = 0;
-
-
- /* build decoding table for trees--single level, 7 bit lookup */
- bl = 7;
- if ((i = huft_build(ll, 19, 19, NULL, NULL, &tl, &bl)) != 0)
- {
- if (i == 1)
- huft_free(tl);
- return i; /* incomplete code set */
- }
-
- if (tl == NULL) /* Grrrhhh */
- return 2;
-
- /* read in literal and distance code lengths */
- n = nl + nd;
- m = mask_bits[bl];
- i = l = 0;
- while ((unsigned)i < n)
- {
- NEEDBITS((unsigned)bl)
- j = (td = tl + ((unsigned)b & m))->b;
- DUMPBITS(j)
- j = td->v.n;
- if (j < 16) /* length of code in bits (0..15) */
- ll[i++] = l = j; /* save last length in l */
- else if (j == 16) /* repeat last length 3 to 6 times */
- {
- NEEDBITS(2)
- j = 3 + ((unsigned)b & 3);
- DUMPBITS(2)
- if ((unsigned)i + j > n)
- return 1;
- while (j--)
- ll[i++] = l;
- }
- else if (j == 17) /* 3 to 10 zero length codes */
- {
- NEEDBITS(3)
- j = 3 + ((unsigned)b & 7);
- DUMPBITS(3)
- if ((unsigned)i + j > n)
- return 1;
- while (j--)
- ll[i++] = 0;
- l = 0;
- }
- else /* j == 18: 11 to 138 zero length codes */
- {
- NEEDBITS(7)
- j = 11 + ((unsigned)b & 0x7f);
- DUMPBITS(7)
- if ((unsigned)i + j > n)
- return 1;
- while (j--)
- ll[i++] = 0;
- l = 0;
- }
- }
-
-
- /* free decoding table for trees */
- huft_free(tl);
-
-
- /* restore the global bit buffer */
- bb = b;
- bk = k;
-
-
- /* build the decoding tables for literal/length and distance codes */
- bl = lbits;
- if ((i = huft_build(ll, nl, 257, cplens, cplext, &tl, &bl)) != 0)
- {
- if (i == 1) {
- fprintf(stderr, " incomplete literal tree\n");
- huft_free(tl);
- }
- return i; /* incomplete code set */
- }
- bd = dbits;
- if ((i = huft_build(ll + nl, nd, 0, cpdist, cpdext, &td, &bd)) != 0)
- {
- if (i == 1) {
- fprintf(stderr, " incomplete distance tree\n");
-#ifdef PKZIP_BUG_WORKAROUND
- i = 0;
- }
-#else
- huft_free(td);
- }
- huft_free(tl);
- return i; /* incomplete code set */
-#endif
- }
-
-
- /* decompress until an end-of-block code */
- if (inflate_codes(tl, td, bl, bd))
- return 1;
-
-
- /* free the decoding tables, return */
- huft_free(tl);
- huft_free(td);
- return 0;
-}
-
-
-
-int inflate_block(e)
-int *e; /* last block flag */
-/* decompress an inflated block */
-{
- unsigned t; /* block type */
- register ulg b; /* bit buffer */
- register unsigned k; /* number of bits in bit buffer */
-
-
- /* make local bit buffer */
- b = bb;
- k = bk;
-
-
- /* read in last block bit */
- NEEDBITS(1)
- *e = (int)b & 1;
- DUMPBITS(1)
-
-
- /* read in block type */
- NEEDBITS(2)
- t = (unsigned)b & 3;
- DUMPBITS(2)
-
-
- /* restore the global bit buffer */
- bb = b;
- bk = k;
-
-
- /* inflate that block type */
- if (t == 2)
- return inflate_dynamic();
- if (t == 0)
- return inflate_stored();
- if (t == 1)
- return inflate_fixed();
-
-
- /* bad block type */
- return 2;
-}
-
-
-
-int inflate()
-/* decompress an inflated entry */
-{
- int e; /* last block flag */
- int r; /* result code */
- unsigned h; /* maximum struct huft's malloc'ed */
-
-
- /* initialize window, bit buffer */
- wp = 0;
- bk = 0;
- bb = 0;
-
-
- /* decompress until the last block */
- h = 0;
- do {
- hufts = 0;
- if ((r = inflate_block(&e)) != 0)
- return r;
- if (hufts > h)
- h = hufts;
- } while (!e);
-
- /* Undo too much lookahead. The next read will be byte aligned so we
- * can discard unused bits in the last meaningful byte.
- */
- while (bk >= 8) {
- bk -= 8;
- inptr--;
- }
-
- /* flush out slide */
- flush_output(wp);
-
-
- /* return success */
-#ifdef DEBUG
- fprintf(stderr, "<%u> ", h);
-#endif /* DEBUG */
- return 0;
-}
diff --git a/gnu/usr.bin/gzip/lzw.c b/gnu/usr.bin/gzip/lzw.c
deleted file mode 100644
index 934a8d9..0000000
--- a/gnu/usr.bin/gzip/lzw.c
+++ /dev/null
@@ -1,26 +0,0 @@
-/* lzw.c -- compress files in LZW format.
- * This is a dummy version avoiding patent problems.
- */
-
-#ifdef RCSID
-static char rcsid[] = "$FreeBSD$";
-#endif
-
-#include "tailor.h"
-#include "gzip.h"
-#include "lzw.h"
-
-static int msg_done = 0;
-
-/* Compress in to out with lzw method. */
-int lzw(in, out)
- int in, out;
-{
- if (msg_done) return ERROR;
- msg_done = 1;
- fprintf(stderr,"output in compress .Z format not supported\n");
- if (in != out) { /* avoid warnings on unused variables */
- exit_code = ERROR;
- }
- return ERROR;
-}
diff --git a/gnu/usr.bin/gzip/lzw.h b/gnu/usr.bin/gzip/lzw.h
deleted file mode 100644
index 4b7ac86..0000000
--- a/gnu/usr.bin/gzip/lzw.h
+++ /dev/null
@@ -1,42 +0,0 @@
-/* lzw.h -- define the lzw functions.
- * Copyright (C) 1992-1993 Jean-loup Gailly.
- * This is free software; you can redistribute it and/or modify it under the
- * terms of the GNU General Public License, see the file COPYING.
- */
-
-#if !defined(OF) && defined(lint)
-# include "gzip.h"
-#endif
-
-#ifndef BITS
-# define BITS 16
-#endif
-#define INIT_BITS 9 /* Initial number of bits per code */
-
-#define LZW_MAGIC "\037\235" /* Magic header for lzw files, 1F 9D */
-
-#define BIT_MASK 0x1f /* Mask for 'number of compression bits' */
-/* Mask 0x20 is reserved to mean a fourth header byte, and 0x40 is free.
- * It's a pity that old uncompress does not check bit 0x20. That makes
- * extension of the format actually undesirable because old compress
- * would just crash on the new format instead of giving a meaningful
- * error message. It does check the number of bits, but it's more
- * helpful to say "unsupported format, get a new version" than
- * "can only handle 16 bits".
- */
-
-#define BLOCK_MODE 0x80
-/* Block compression: if table is full and compression rate is dropping,
- * clear the dictionary.
- */
-
-#define LZW_RESERVED 0x60 /* reserved bits */
-
-#define CLEAR 256 /* flush the dictionary */
-#define FIRST (CLEAR+1) /* first free entry */
-
-extern int maxbits; /* max bits per code for LZW */
-extern int block_mode; /* block compress mode -C compatible with 2.0 */
-
-extern int lzw OF((int in, int out));
-extern int unlzw OF((int in, int out));
diff --git a/gnu/usr.bin/gzip/match.S b/gnu/usr.bin/gzip/match.S
deleted file mode 100644
index f283f86..0000000
--- a/gnu/usr.bin/gzip/match.S
+++ /dev/null
@@ -1,379 +0,0 @@
-/* match.s -- optional optimized asm version of longest match in deflate.c
- * Copyright (C) 1992-1993 Jean-loup Gailly
- * This is free software; you can redistribute it and/or modify it under the
- * terms of the GNU General Public License, see the file COPYING.
- *
- * The 68020 version has been written by Francesco Potorti` <pot@cnuce.cnr.it>
- * with adaptations by Carsten Steger <stegerc@informatik.tu-muenchen.de>,
- * Andreas Schwab <schwab@lamothe.informatik.uni-dortmund.de> and
- * Kristoffer Eriksson <ske@pkmab.se>
- */
-
-/* $FreeBSD$ */
-
-/* Preprocess with -DNO_UNDERLINE if your C compiler does not prefix
- * external symbols with an underline character '_'.
- */
-#ifdef NO_UNDERLINE
-# define _prev prev
-# define _window window
-# define _match_start match_start
-# define _prev_length prev_length
-# define _good_match good_match
-# define _nice_match nice_match
-# define _strstart strstart
-# define _max_chain_length max_chain_length
-
-# define _match_init match_init
-# define _longest_match longest_match
-#endif
-
-#ifdef DYN_ALLOC
- error: DYN_ALLOC not yet supported in match.s
-#endif
-
-#if defined(i386) || defined(_I386) || defined(__i386__)
-
-/* This version is for 386 Unix or OS/2 in 32 bit mode.
- * Warning: it uses the AT&T syntax: mov source,dest
- * This file is only optional. If you want to force the C version,
- * add -DNO_ASM to CFLAGS in Makefile and set OBJA to an empty string.
- * If you have reduced WSIZE in gzip.h, then change its value below.
- * This version assumes static allocation of the arrays (-DDYN_ALLOC not used).
- */
-
- .file "match.S"
-
-#define MAX_MATCH 258
-#define MAX_MATCH2 $128 /* MAX_MATCH/2-1 */
-#define MIN_MATCH 3
-#define WSIZE $32768
-#define MAX_DIST WSIZE - MAX_MATCH - MIN_MATCH - 1
-
- .globl _match_init
- .globl _longest_match
-
- .text
-
-_match_init:
- ret
-
-/*-----------------------------------------------------------------------
- * Set match_start to the longest match starting at the given string and
- * return its length. Matches shorter or equal to prev_length are discarded,
- * in which case the result is equal to prev_length and match_start is
- * garbage.
- * IN assertions: cur_match is the head of the hash chain for the current
- * string (strstart) and its distance is <= MAX_DIST, and prev_length >= 1
- */
-
-_longest_match: /* int longest_match(cur_match) */
-
-#define cur_match 20(%esp)
- /* return address */ /* esp+16 */
- push %ebp /* esp+12 */
- push %edi /* esp+8 */
- push %esi /* esp+4 */
- push %ebx /* esp */
-
-/*
- * match equ esi
- * scan equ edi
- * chain_length equ ebp
- * best_len equ ebx
- * limit equ edx
- */
- mov cur_match,%esi
- mov _max_chain_length,%ebp /* chain_length = max_chain_length */
- mov _strstart,%edi
- mov %edi,%edx
- sub MAX_DIST,%edx /* limit = strstart-MAX_DIST */
- jae limit_ok
- sub %edx,%edx /* limit = NIL */
-limit_ok:
- add $2+_window,%edi /* edi = offset(window+strstart+2) */
- mov _prev_length,%ebx /* best_len = prev_length */
- movw -3(%ebx,%edi),%ax /* ax = scan[best_len-1..best_len] */
- movw -2(%edi),%cx /* cx = scan[0..1] */
- cmp _good_match,%ebx /* do we have a good match already? */
- jb do_scan
- shr $2,%ebp /* chain_length >>= 2 */
- jmp do_scan
-
- .align 4
-long_loop:
-/* at this point, edi == scan+2, esi == cur_match */
- movw -3(%ebx,%edi),%ax /* ax = scan[best_len-1..best_len] */
- movw -2(%edi),%cx /* cx = scan[0..1] */
-short_loop:
-/*
- * at this point, di == scan+2, si == cur_match,
- * ax = scan[best_len-1..best_len] and cx = scan[0..1]
- */
- and WSIZE-1, %esi
- movw _prev(%esi,%esi),%si /* cur_match = prev[cur_match] */
- /* top word of esi is still 0 */
- cmp %edx,%esi /* cur_match <= limit ? */
- jbe the_end
- dec %ebp /* --chain_length */
- jz the_end
-do_scan:
- cmpw _window-1(%ebx,%esi),%ax/* check match at best_len-1 */
- jne short_loop
- cmpw _window(%esi),%cx /* check min_match_length match */
- jne short_loop
-
- lea _window+2(%esi),%esi /* si = match */
- mov %edi,%eax /* ax = scan+2 */
- mov MAX_MATCH2,%ecx /* scan for at most MAX_MATCH bytes */
- rep; cmpsw /* loop until mismatch */
- je maxmatch /* match of length MAX_MATCH? */
-mismatch:
- movb -2(%edi),%cl /* mismatch on first or second byte? */
- subb -2(%esi),%cl /* cl = 0 if first bytes equal */
- xchg %edi,%eax /* edi = scan+2, eax = end of scan */
- sub %edi,%eax /* eax = len */
- sub %eax,%esi /* esi = cur_match + 2 + offset(window) */
- sub $2+_window,%esi /* esi = cur_match */
- subb $1,%cl /* set carry if cl == 0 (cannot use DEC) */
- adc $0,%eax /* eax = carry ? len+1 : len */
- cmp %ebx,%eax /* len > best_len ? */
- jle long_loop
- mov %esi,_match_start /* match_start = cur_match */
- mov %eax,%ebx /* ebx = best_len = len */
- cmp _nice_match,%eax /* len >= nice_match ? */
- jl long_loop
-the_end:
- mov %ebx,%eax /* result = eax = best_len */
- pop %ebx
- pop %esi
- pop %edi
- pop %ebp
- ret
-maxmatch:
- cmpsb
- jmp mismatch
-
-#else
-
-/* ======================== 680x0 version ================================= */
-
-#if defined(m68k)||defined(mc68k)||defined(__mc68000__)||defined(__MC68000__)
-# ifndef mc68000
-# define mc68000
-# endif
-#endif
-
-#if defined(__mc68020__) || defined(__MC68020__) || defined(sysV68)
-# ifndef mc68020
-# define mc68020
-# endif
-#endif
-
-#if defined(mc68020) || defined(mc68000)
-
-#if (defined(mc68020) || defined(NeXT)) && !defined(UNALIGNED_OK)
-# define UNALIGNED_OK
-#endif
-
-#ifdef sysV68 /* Try Motorola Delta style */
-
-# define GLOBAL(symbol) global symbol
-# define TEXT text
-# define FILE(filename) file filename
-# define invert_maybe(src,dst) dst,src
-# define imm(data) &data
-# define reg(register) %register
-
-# define addl add.l
-# define addql addq.l
-# define blos blo.b
-# define bhis bhi.b
-# define bras bra.b
-# define clrl clr.l
-# define cmpmb cmpm.b
-# define cmpw cmp.w
-# define cmpl cmp.l
-# define lslw lsl.w
-# define lsrl lsr.l
-# define movel move.l
-# define movew move.w
-# define moveb move.b
-# define moveml movem.l
-# define subl sub.l
-# define subw sub.w
-# define subql subq.l
-
-# define IndBase(bd,An) (bd,An)
-# define IndBaseNdxl(bd,An,Xn) (bd,An,Xn.l)
-# define IndBaseNdxw(bd,An,Xn) (bd,An,Xn.w)
-# define predec(An) -(An)
-# define postinc(An) (An)+
-
-#else /* default style (Sun 3, NeXT, Amiga, Atari) */
-
-# define GLOBAL(symbol) .globl symbol
-# define TEXT .text
-# define FILE(filename) .even
-# define invert_maybe(src,dst) src,dst
-# if defined(sun) || defined(mc68k)
-# define imm(data) #data
-# else
-# define imm(data) \#data
-# endif
-# define reg(register) register
-
-# define blos bcss
-# if defined(sun) || defined(mc68k)
-# define movel movl
-# define movew movw
-# define moveb movb
-# endif
-# define IndBase(bd,An) An@(bd)
-# define IndBaseNdxl(bd,An,Xn) An@(bd,Xn:l)
-# define IndBaseNdxw(bd,An,Xn) An@(bd,Xn:w)
-# define predec(An) An@-
-# define postinc(An) An@+
-
-#endif /* styles */
-
-#define Best_Len reg(d0) /* unsigned */
-#define Cur_Match reg(d1) /* Ipos */
-#define Loop_Counter reg(d2) /* int */
-#define Scan_Start reg(d3) /* unsigned short */
-#define Scan_End reg(d4) /* unsigned short */
-#define Limit reg(d5) /* IPos */
-#define Chain_Length reg(d6) /* unsigned */
-#define Scan_Test reg(d7)
-#define Scan reg(a0) /* *uch */
-#define Match reg(a1) /* *uch */
-#define Prev_Address reg(a2) /* *Pos */
-#define Scan_Ini reg(a3) /* *uch */
-#define Match_Ini reg(a4) /* *uch */
-#define Stack_Pointer reg(sp)
-
-#define MAX_MATCH 258
-#define MIN_MATCH 3
-#define WSIZE 32768
-#define MAX_DIST (WSIZE - MAX_MATCH - MIN_MATCH - 1)
-
- GLOBAL (_match_init)
- GLOBAL (_longest_match)
-
- TEXT
-
- FILE ("match.S")
-
-_match_init:
- rts
-
-/*-----------------------------------------------------------------------
- * Set match_start to the longest match starting at the given string and
- * return its length. Matches shorter or equal to prev_length are discarded,
- * in which case the result is equal to prev_length and match_start is
- * garbage.
- * IN assertions: cur_match is the head of the hash chain for the current
- * string (strstart) and its distance is <= MAX_DIST, and prev_length >= 1
- */
-
-/* int longest_match (cur_match) */
-
-#ifdef UNALIGNED_OK
-# define pushreg 15928 /* d2-d6/a2-a4 */
-# define popreg 7292
-#else
-# define pushreg 16184 /* d2-d7/a2-a4 */
-# define popreg 7420
-#endif
-
-_longest_match:
- movel IndBase(4,Stack_Pointer),Cur_Match
- moveml imm(pushreg),predec(Stack_Pointer)
- movel _max_chain_length,Chain_Length
- movel _prev_length,Best_Len
- movel imm(_prev),Prev_Address
- movel imm(_window+MIN_MATCH),Match_Ini
- movel _strstart,Limit
- movel Match_Ini,Scan_Ini
- addl Limit,Scan_Ini
- subw imm(MAX_DIST),Limit
- bhis L__limit_ok
- clrl Limit
-L__limit_ok:
- cmpl invert_maybe(_good_match,Best_Len)
- blos L__length_ok
- lsrl imm(2),Chain_Length
-L__length_ok:
- subql imm(1),Chain_Length
-#ifdef UNALIGNED_OK
- movew IndBase(-MIN_MATCH,Scan_Ini),Scan_Start
- movew IndBaseNdxw(-MIN_MATCH-1,Scan_Ini,Best_Len),Scan_End
-#else
- moveb IndBase(-MIN_MATCH,Scan_Ini),Scan_Start
- lslw imm(8),Scan_Start
- moveb IndBase(-MIN_MATCH+1,Scan_Ini),Scan_Start
- moveb IndBaseNdxw(-MIN_MATCH-1,Scan_Ini,Best_Len),Scan_End
- lslw imm(8),Scan_End
- moveb IndBaseNdxw(-MIN_MATCH,Scan_Ini,Best_Len),Scan_End
-#endif
- bras L__do_scan
-
-L__long_loop:
-#ifdef UNALIGNED_OK
- movew IndBaseNdxw(-MIN_MATCH-1,Scan_Ini,Best_Len),Scan_End
-#else
- moveb IndBaseNdxw(-MIN_MATCH-1,Scan_Ini,Best_Len),Scan_End
- lslw imm(8),Scan_End
- moveb IndBaseNdxw(-MIN_MATCH,Scan_Ini,Best_Len),Scan_End
-#endif
-
-L__short_loop:
- lslw imm(1),Cur_Match
- movew IndBaseNdxl(0,Prev_Address,Cur_Match),Cur_Match
- cmpw invert_maybe(Limit,Cur_Match)
- dbls Chain_Length,L__do_scan
- bras L__return
-
-L__do_scan:
- movel Match_Ini,Match
- addl Cur_Match,Match
-#ifdef UNALIGNED_OK
- cmpw invert_maybe(IndBaseNdxw(-MIN_MATCH-1,Match,Best_Len),Scan_End)
- bne L__short_loop
- cmpw invert_maybe(IndBase(-MIN_MATCH,Match),Scan_Start)
- bne L__short_loop
-#else
- moveb IndBaseNdxw(-MIN_MATCH-1,Match,Best_Len),Scan_Test
- lslw imm(8),Scan_Test
- moveb IndBaseNdxw(-MIN_MATCH,Match,Best_Len),Scan_Test
- cmpw invert_maybe(Scan_Test,Scan_End)
- bne L__short_loop
- moveb IndBase(-MIN_MATCH,Match),Scan_Test
- lslw imm(8),Scan_Test
- moveb IndBase(-MIN_MATCH+1,Match),Scan_Test
- cmpw invert_maybe(Scan_Test,Scan_Start)
- bne L__short_loop
-#endif
-
- movew imm((MAX_MATCH-MIN_MATCH+1)-1),Loop_Counter
- movel Scan_Ini,Scan
-L__scan_loop:
- cmpmb postinc(Match),postinc(Scan)
- dbne Loop_Counter,L__scan_loop
-
- subl Scan_Ini,Scan
- addql imm(MIN_MATCH-1),Scan
- cmpl invert_maybe(Best_Len,Scan)
- bls L__short_loop
- movel Scan,Best_Len
- movel Cur_Match,_match_start
- cmpl invert_maybe(_nice_match,Best_Len)
- blos L__long_loop
-L__return:
- moveml postinc(Stack_Pointer),imm(popreg)
- rts
-
-#else
- error: this asm version is for 386 or 680x0 only
-#endif /* mc68000 || mc68020 */
-#endif /* i386 || _I386 */
diff --git a/gnu/usr.bin/gzip/revision.h b/gnu/usr.bin/gzip/revision.h
deleted file mode 100644
index 43b0885..0000000
--- a/gnu/usr.bin/gzip/revision.h
+++ /dev/null
@@ -1,16 +0,0 @@
-/* revision.h -- define the version number
- * Copyright (C) 1992-1993 Jean-loup Gailly.
- * This is free software; you can redistribute it and/or modify it under the
- * terms of the GNU General Public License, see the file COPYING.
- */
-
-#define VERSION "1.2.4"
-#define PATCHLEVEL 0
-#define REVDATE "18 Aug 93"
-
-/* This version does not support compression into old compress format: */
-#ifdef LZW
-# undef LZW
-#endif
-
-/* $FreeBSD$ */
diff --git a/gnu/usr.bin/gzip/tailor.h b/gnu/usr.bin/gzip/tailor.h
deleted file mode 100644
index abdde17..0000000
--- a/gnu/usr.bin/gzip/tailor.h
+++ /dev/null
@@ -1,328 +0,0 @@
-/* tailor.h -- target dependent definitions
- * Copyright (C) 1992-1993 Jean-loup Gailly.
- * This is free software; you can redistribute it and/or modify it under the
- * terms of the GNU General Public License, see the file COPYING.
- */
-
-/* The target dependent definitions should be defined here only.
- * The target dependent functions should be defined in tailor.c.
- */
-
-/* $FreeBSD$ */
-
-#if defined(__MSDOS__) && !defined(MSDOS)
-# define MSDOS
-#endif
-
-#if defined(__OS2__) && !defined(OS2)
-# define OS2
-#endif
-
-#if defined(OS2) && defined(MSDOS) /* MS C under OS/2 */
-# undef MSDOS
-#endif
-
-#ifdef MSDOS
-# ifdef __GNUC__
- /* DJGPP version 1.09+ on MS-DOS.
- * The DJGPP 1.09 stat() function must be upgraded before gzip will
- * fully work.
- * No need for DIRENT, since <unistd.h> defines POSIX_SOURCE which
- * implies DIRENT.
- */
-# define near
-# else
-# define MAXSEG_64K
-# ifdef __TURBOC__
-# define NO_OFF_T
-# ifdef __BORLANDC__
-# define DIRENT
-# else
-# define NO_UTIME
-# endif
-# else /* MSC */
-# define HAVE_SYS_UTIME_H
-# define NO_UTIME_H
-# endif
-# endif
-# define PATH_SEP2 '\\'
-# define PATH_SEP3 ':'
-# define MAX_PATH_LEN 128
-# define NO_MULTIPLE_DOTS
-# define MAX_EXT_CHARS 3
-# define Z_SUFFIX "z"
-# define NO_CHOWN
-# define PROTO
-# define STDC_HEADERS
-# define NO_SIZE_CHECK
-# define casemap(c) tolow(c) /* Force file names to lower case */
-# include <io.h>
-# define OS_CODE 0x00
-# define SET_BINARY_MODE(fd) setmode(fd, O_BINARY)
-# if !defined(NO_ASM) && !defined(ASMV)
-# define ASMV
-# endif
-#else
-# define near
-#endif
-
-#ifdef OS2
-# define PATH_SEP2 '\\'
-# define PATH_SEP3 ':'
-# define MAX_PATH_LEN 260
-# ifdef OS2FAT
-# define NO_MULTIPLE_DOTS
-# define MAX_EXT_CHARS 3
-# define Z_SUFFIX "z"
-# define casemap(c) tolow(c)
-# endif
-# define NO_CHOWN
-# define PROTO
-# define STDC_HEADERS
-# include <io.h>
-# define OS_CODE 0x06
-# define SET_BINARY_MODE(fd) setmode(fd, O_BINARY)
-# ifdef _MSC_VER
-# define HAVE_SYS_UTIME_H
-# define NO_UTIME_H
-# define MAXSEG_64K
-# undef near
-# define near _near
-# endif
-# ifdef __EMX__
-# define HAVE_SYS_UTIME_H
-# define NO_UTIME_H
-# define DIRENT
-# define EXPAND(argc,argv) \
- {_response(&argc, &argv); _wildcard(&argc, &argv);}
-# endif
-# ifdef __BORLANDC__
-# define DIRENT
-# endif
-# ifdef __ZTC__
-# define NO_DIR
-# define NO_UTIME_H
-# include <dos.h>
-# define EXPAND(argc,argv) \
- {response_expand(&argc, &argv);}
-# endif
-#endif
-
-#ifdef WIN32 /* Windows NT */
-# define HAVE_SYS_UTIME_H
-# define NO_UTIME_H
-# define PATH_SEP2 '\\'
-# define PATH_SEP3 ':'
-# define MAX_PATH_LEN 260
-# define NO_CHOWN
-# define PROTO
-# define STDC_HEADERS
-# define SET_BINARY_MODE(fd) setmode(fd, O_BINARY)
-# include <io.h>
-# include <malloc.h>
-# ifdef NTFAT
-# define NO_MULTIPLE_DOTS
-# define MAX_EXT_CHARS 3
-# define Z_SUFFIX "z"
-# define casemap(c) tolow(c) /* Force file names to lower case */
-# endif
-# define OS_CODE 0x0b
-#endif
-
-#ifdef MSDOS
-# ifdef __TURBOC__
-# include <alloc.h>
-# define DYN_ALLOC
- /* Turbo C 2.0 does not accept static allocations of large arrays */
- void * fcalloc (unsigned items, unsigned size);
- void fcfree (void *ptr);
-# else /* MSC */
-# include <malloc.h>
-# define fcalloc(nitems,itemsize) halloc((long)(nitems),(itemsize))
-# define fcfree(ptr) hfree(ptr)
-# endif
-#else
-# ifdef MAXSEG_64K
-# define fcalloc(items,size) calloc((items),(size))
-# else
-# define fcalloc(items,size) malloc((size_t)(items)*(size_t)(size))
-# endif
-# define fcfree(ptr) free(ptr)
-#endif
-
-#if defined(VAXC) || defined(VMS)
-# define PATH_SEP ']'
-# define PATH_SEP2 ':'
-# define SUFFIX_SEP ';'
-# define NO_MULTIPLE_DOTS
-# define Z_SUFFIX "-gz"
-# define RECORD_IO 1
-# define casemap(c) tolow(c)
-# define OS_CODE 0x02
-# define OPTIONS_VAR "GZIP_OPT"
-# define STDC_HEADERS
-# define NO_UTIME
-# define EXPAND(argc,argv) vms_expand_args(&argc,&argv);
-# include <file.h>
-# define unlink delete
-# ifdef VAXC
-# define NO_FCNTL_H
-# include <unixio.h>
-# endif
-#endif
-
-#ifdef AMIGA
-# define PATH_SEP2 ':'
-# define STDC_HEADERS
-# define OS_CODE 0x01
-# define ASMV
-# ifdef __GNUC__
-# define DIRENT
-# define HAVE_UNISTD_H
-# else /* SASC */
-# define NO_STDIN_FSTAT
-# define SYSDIR
-# define NO_SYMLINK
-# define NO_CHOWN
-# define NO_FCNTL_H
-# include <fcntl.h> /* for read() and write() */
-# define direct dirent
- extern void _expand_args(int *argc, char ***argv);
-# define EXPAND(argc,argv) _expand_args(&argc,&argv);
-# undef O_BINARY /* disable useless --ascii option */
-# endif
-#endif
-
-#if defined(ATARI) || defined(atarist)
-# ifndef STDC_HEADERS
-# define STDC_HEADERS
-# define HAVE_UNISTD_H
-# define DIRENT
-# endif
-# define ASMV
-# define OS_CODE 0x05
-# ifdef TOSFS
-# define PATH_SEP2 '\\'
-# define PATH_SEP3 ':'
-# define MAX_PATH_LEN 128
-# define NO_MULTIPLE_DOTS
-# define MAX_EXT_CHARS 3
-# define Z_SUFFIX "z"
-# define NO_CHOWN
-# define casemap(c) tolow(c) /* Force file names to lower case */
-# define NO_SYMLINK
-# endif
-#endif
-
-#ifdef MACOS
-# define PATH_SEP ':'
-# define DYN_ALLOC
-# define PROTO
-# define NO_STDIN_FSTAT
-# define NO_CHOWN
-# define NO_UTIME
-# define chmod(file, mode) (0)
-# define OPEN(name, flags, mode) open(name, flags)
-# define OS_CODE 0x07
-# ifdef MPW
-# define isatty(fd) ((fd) <= 2)
-# endif
-#endif
-
-#ifdef __50SERIES /* Prime/PRIMOS */
-# define PATH_SEP '>'
-# define STDC_HEADERS
-# define NO_MEMORY_H
-# define NO_UTIME_H
-# define NO_UTIME
-# define NO_CHOWN
-# define NO_STDIN_FSTAT
-# define NO_SIZE_CHECK
-# define NO_SYMLINK
-# define RECORD_IO 1
-# define casemap(c) tolow(c) /* Force file names to lower case */
-# define put_char(c) put_byte((c) & 0x7F)
-# define get_char(c) ascii2pascii(get_byte())
-# define OS_CODE 0x0F /* temporary, subject to change */
-# ifdef SIGTERM
-# undef SIGTERM /* We don't want a signal handler for SIGTERM */
-# endif
-#endif
-
-#if defined(pyr) && !defined(NOMEMCPY) /* Pyramid */
-# define NOMEMCPY /* problem with overlapping copies */
-#endif
-
-#ifdef TOPS20
-# define OS_CODE 0x0a
-#endif
-
-#ifndef unix
-# define NO_ST_INO /* don't rely on inode numbers */
-#endif
-
-
- /* Common defaults */
-
-#ifndef OS_CODE
-# define OS_CODE 0x03 /* assume Unix */
-#endif
-
-#ifndef PATH_SEP
-# define PATH_SEP '/'
-#endif
-
-#ifndef casemap
-# define casemap(c) (c)
-#endif
-
-#ifndef OPTIONS_VAR
-# define OPTIONS_VAR "GZIP"
-#endif
-
-#ifndef Z_SUFFIX
-# define Z_SUFFIX ".gz"
-#endif
-
-#ifdef MAX_EXT_CHARS
-# define MAX_SUFFIX MAX_EXT_CHARS
-#else
-# define MAX_SUFFIX 30
-#endif
-
-#ifndef MAKE_LEGAL_NAME
-# ifdef NO_MULTIPLE_DOTS
-# define MAKE_LEGAL_NAME(name) make_simple_name(name)
-# else
-# define MAKE_LEGAL_NAME(name)
-# endif
-#endif
-
-#ifndef MIN_PART
-# define MIN_PART 3
- /* keep at least MIN_PART chars between dots in a file name. */
-#endif
-
-#ifndef EXPAND
-# define EXPAND(argc,argv)
-#endif
-
-#ifndef RECORD_IO
-# define RECORD_IO 0
-#endif
-
-#ifndef SET_BINARY_MODE
-# define SET_BINARY_MODE(fd)
-#endif
-
-#ifndef OPEN
-# define OPEN(name, flags, mode) open(name, flags, mode)
-#endif
-
-#ifndef get_char
-# define get_char() get_byte()
-#endif
-
-#ifndef put_char
-# define put_char(c) put_byte(c)
-#endif
diff --git a/gnu/usr.bin/gzip/trees.c b/gnu/usr.bin/gzip/trees.c
deleted file mode 100644
index fe2405e..0000000
--- a/gnu/usr.bin/gzip/trees.c
+++ /dev/null
@@ -1,1075 +0,0 @@
-/* trees.c -- output deflated data using Huffman coding
- * Copyright (C) 1992-1993 Jean-loup Gailly
- * This is free software; you can redistribute it and/or modify it under the
- * terms of the GNU General Public License, see the file COPYING.
- */
-
-/*
- * PURPOSE
- *
- * Encode various sets of source values using variable-length
- * binary code trees.
- *
- * DISCUSSION
- *
- * The PKZIP "deflation" process uses several Huffman trees. The more
- * common source values are represented by shorter bit sequences.
- *
- * Each code tree is stored in the ZIP file in a compressed form
- * which is itself a Huffman encoding of the lengths of
- * all the code strings (in ascending order by source values).
- * The actual code strings are reconstructed from the lengths in
- * the UNZIP process, as described in the "application note"
- * (APPNOTE.TXT) distributed as part of PKWARE's PKZIP program.
- *
- * REFERENCES
- *
- * Lynch, Thomas J.
- * Data Compression: Techniques and Applications, pp. 53-55.
- * Lifetime Learning Publications, 1985. ISBN 0-534-03418-7.
- *
- * Storer, James A.
- * Data Compression: Methods and Theory, pp. 49-50.
- * Computer Science Press, 1988. ISBN 0-7167-8156-5.
- *
- * Sedgewick, R.
- * Algorithms, p290.
- * Addison-Wesley, 1983. ISBN 0-201-06672-6.
- *
- * INTERFACE
- *
- * void ct_init (ush *attr, int *methodp)
- * Allocate the match buffer, initialize the various tables and save
- * the location of the internal file attribute (ascii/binary) and
- * method (DEFLATE/STORE)
- *
- * void ct_tally (int dist, int lc);
- * Save the match info and tally the frequency counts.
- *
- * long flush_block (char *buf, ulg stored_len, int eof)
- * Determine the best encoding for the current block: dynamic trees,
- * static trees or store, and output the encoded block to the zip
- * file. Returns the total compressed length for the file so far.
- *
- */
-
-#include <ctype.h>
-
-#include "tailor.h"
-#include "gzip.h"
-
-#ifdef RCSID
-static char rcsid[] = "$FreeBSD$";
-#endif
-
-/* ===========================================================================
- * Constants
- */
-
-#define MAX_BITS 15
-/* All codes must not exceed MAX_BITS bits */
-
-#define MAX_BL_BITS 7
-/* Bit length codes must not exceed MAX_BL_BITS bits */
-
-#define LENGTH_CODES 29
-/* number of length codes, not counting the special END_BLOCK code */
-
-#define LITERALS 256
-/* number of literal bytes 0..255 */
-
-#define END_BLOCK 256
-/* end of block literal code */
-
-#define L_CODES (LITERALS+1+LENGTH_CODES)
-/* number of Literal or Length codes, including the END_BLOCK code */
-
-#define D_CODES 30
-/* number of distance codes */
-
-#define BL_CODES 19
-/* number of codes used to transfer the bit lengths */
-
-
-local int near extra_lbits[LENGTH_CODES] /* extra bits for each length code */
- = {0,0,0,0,0,0,0,0,1,1,1,1,2,2,2,2,3,3,3,3,4,4,4,4,5,5,5,5,0};
-
-local int near extra_dbits[D_CODES] /* extra bits for each distance code */
- = {0,0,0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,13,13};
-
-local int near extra_blbits[BL_CODES]/* extra bits for each bit length code */
- = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,2,3,7};
-
-#define STORED_BLOCK 0
-#define STATIC_TREES 1
-#define DYN_TREES 2
-/* The three kinds of block type */
-
-#ifndef LIT_BUFSIZE
-# ifdef SMALL_MEM
-# define LIT_BUFSIZE 0x2000
-# else
-# ifdef MEDIUM_MEM
-# define LIT_BUFSIZE 0x4000
-# else
-# define LIT_BUFSIZE 0x8000
-# endif
-# endif
-#endif
-#ifndef DIST_BUFSIZE
-# define DIST_BUFSIZE LIT_BUFSIZE
-#endif
-/* Sizes of match buffers for literals/lengths and distances. There are
- * 4 reasons for limiting LIT_BUFSIZE to 64K:
- * - frequencies can be kept in 16 bit counters
- * - if compression is not successful for the first block, all input data is
- * still in the window so we can still emit a stored block even when input
- * comes from standard input. (This can also be done for all blocks if
- * LIT_BUFSIZE is not greater than 32K.)
- * - if compression is not successful for a file smaller than 64K, we can
- * even emit a stored file instead of a stored block (saving 5 bytes).
- * - creating new Huffman trees less frequently may not provide fast
- * adaptation to changes in the input data statistics. (Take for
- * example a binary file with poorly compressible code followed by
- * a highly compressible string table.) Smaller buffer sizes give
- * fast adaptation but have of course the overhead of transmitting trees
- * more frequently.
- * - I can't count above 4
- * The current code is general and allows DIST_BUFSIZE < LIT_BUFSIZE (to save
- * memory at the expense of compression). Some optimizations would be possible
- * if we rely on DIST_BUFSIZE == LIT_BUFSIZE.
- */
-#if LIT_BUFSIZE > INBUFSIZ
- error cannot overlay l_buf and inbuf
-#endif
-
-#define REP_3_6 16
-/* repeat previous bit length 3-6 times (2 bits of repeat count) */
-
-#define REPZ_3_10 17
-/* repeat a zero length 3-10 times (3 bits of repeat count) */
-
-#define REPZ_11_138 18
-/* repeat a zero length 11-138 times (7 bits of repeat count) */
-
-/* ===========================================================================
- * Local data
- */
-
-/* Data structure describing a single value and its code string. */
-typedef struct ct_data {
- union {
- ush freq; /* frequency count */
- ush code; /* bit string */
- } fc;
- union {
- ush dad; /* father node in Huffman tree */
- ush len; /* length of bit string */
- } dl;
-} ct_data;
-
-#define Freq fc.freq
-#define Code fc.code
-#define Dad dl.dad
-#define Len dl.len
-
-#define HEAP_SIZE (2*L_CODES+1)
-/* maximum heap size */
-
-local ct_data near dyn_ltree[HEAP_SIZE]; /* literal and length tree */
-local ct_data near dyn_dtree[2*D_CODES+1]; /* distance tree */
-
-local ct_data near static_ltree[L_CODES+2];
-/* The static literal tree. Since the bit lengths are imposed, there is no
- * need for the L_CODES extra codes used during heap construction. However
- * The codes 286 and 287 are needed to build a canonical tree (see ct_init
- * below).
- */
-
-local ct_data near static_dtree[D_CODES];
-/* The static distance tree. (Actually a trivial tree since all codes use
- * 5 bits.)
- */
-
-local ct_data near bl_tree[2*BL_CODES+1];
-/* Huffman tree for the bit lengths */
-
-typedef struct tree_desc {
- ct_data near *dyn_tree; /* the dynamic tree */
- ct_data near *static_tree; /* corresponding static tree or NULL */
- int near *extra_bits; /* extra bits for each code or NULL */
- int extra_base; /* base index for extra_bits */
- int elems; /* max number of elements in the tree */
- int max_length; /* max bit length for the codes */
- int max_code; /* largest code with non zero frequency */
-} tree_desc;
-
-local tree_desc near l_desc =
-{dyn_ltree, static_ltree, extra_lbits, LITERALS+1, L_CODES, MAX_BITS, 0};
-
-local tree_desc near d_desc =
-{dyn_dtree, static_dtree, extra_dbits, 0, D_CODES, MAX_BITS, 0};
-
-local tree_desc near bl_desc =
-{bl_tree, (ct_data near *)0, extra_blbits, 0, BL_CODES, MAX_BL_BITS, 0};
-
-
-local ush near bl_count[MAX_BITS+1];
-/* number of codes at each bit length for an optimal tree */
-
-local uch near bl_order[BL_CODES]
- = {16,17,18,0,8,7,9,6,10,5,11,4,12,3,13,2,14,1,15};
-/* The lengths of the bit length codes are sent in order of decreasing
- * probability, to avoid transmitting the lengths for unused bit length codes.
- */
-
-local int near heap[2*L_CODES+1]; /* heap used to build the Huffman trees */
-local int heap_len; /* number of elements in the heap */
-local int heap_max; /* element of largest frequency */
-/* The sons of heap[n] are heap[2*n] and heap[2*n+1]. heap[0] is not used.
- * The same heap array is used to build all trees.
- */
-
-local uch near depth[2*L_CODES+1];
-/* Depth of each subtree used as tie breaker for trees of equal frequency */
-
-local uch length_code[MAX_MATCH-MIN_MATCH+1];
-/* length code for each normalized match length (0 == MIN_MATCH) */
-
-local uch dist_code[512];
-/* distance codes. The first 256 values correspond to the distances
- * 3 .. 258, the last 256 values correspond to the top 8 bits of
- * the 15 bit distances.
- */
-
-local int near base_length[LENGTH_CODES];
-/* First normalized length for each code (0 = MIN_MATCH) */
-
-local int near base_dist[D_CODES];
-/* First normalized distance for each code (0 = distance of 1) */
-
-#define l_buf inbuf
-/* DECLARE(uch, l_buf, LIT_BUFSIZE); buffer for literals or lengths */
-
-/* DECLARE(ush, d_buf, DIST_BUFSIZE); buffer for distances */
-
-local uch near flag_buf[(LIT_BUFSIZE/8)];
-/* flag_buf is a bit array distinguishing literals from lengths in
- * l_buf, thus indicating the presence or absence of a distance.
- */
-
-local unsigned last_lit; /* running index in l_buf */
-local unsigned last_dist; /* running index in d_buf */
-local unsigned last_flags; /* running index in flag_buf */
-local uch flags; /* current flags not yet saved in flag_buf */
-local uch flag_bit; /* current bit used in flags */
-/* bits are filled in flags starting at bit 0 (least significant).
- * Note: these flags are overkill in the current code since we don't
- * take advantage of DIST_BUFSIZE == LIT_BUFSIZE.
- */
-
-local ulg opt_len; /* bit length of current block with optimal trees */
-local ulg static_len; /* bit length of current block with static trees */
-
-local ulg compressed_len; /* total bit length of compressed file */
-
-local ulg input_len; /* total byte length of input file */
-/* input_len is for debugging only since we can get it by other means. */
-
-ush *file_type; /* pointer to UNKNOWN, BINARY or ASCII */
-int *file_method; /* pointer to DEFLATE or STORE */
-
-#ifdef DEBUG
-extern ulg bits_sent; /* bit length of the compressed data */
-extern long isize; /* byte length of input file */
-#endif
-
-extern long block_start; /* window offset of current block */
-extern unsigned near strstart; /* window offset of current string */
-
-/* ===========================================================================
- * Local (static) routines in this file.
- */
-
-local void init_block OF((void));
-local void pqdownheap OF((ct_data near *tree, int k));
-local void gen_bitlen OF((tree_desc near *desc));
-local void gen_codes OF((ct_data near *tree, int max_code));
-local void build_tree OF((tree_desc near *desc));
-local void scan_tree OF((ct_data near *tree, int max_code));
-local void send_tree OF((ct_data near *tree, int max_code));
-local int build_bl_tree OF((void));
-local void send_all_trees OF((int lcodes, int dcodes, int blcodes));
-local void compress_block OF((ct_data near *ltree, ct_data near *dtree));
-local void set_file_type OF((void));
-
-
-#ifndef DEBUG
-# define send_code(c, tree) send_bits(tree[c].Code, tree[c].Len)
- /* Send a code of the given tree. c and tree must not have side effects */
-
-#else /* DEBUG */
-# define send_code(c, tree) \
- { if (verbose>1) fprintf(stderr,"\ncd %3d ",(c)); \
- send_bits(tree[c].Code, tree[c].Len); }
-#endif
-
-#define d_code(dist) \
- ((dist) < 256 ? dist_code[dist] : dist_code[256+((dist)>>7)])
-/* Mapping from a distance to a distance code. dist is the distance - 1 and
- * must not have side effects. dist_code[256] and dist_code[257] are never
- * used.
- */
-
-#define MAX(a,b) (a >= b ? a : b)
-/* the arguments must not have side effects */
-
-/* ===========================================================================
- * Allocate the match buffer, initialize the various tables and save the
- * location of the internal file attribute (ascii/binary) and method
- * (DEFLATE/STORE).
- */
-void ct_init(attr, methodp)
- ush *attr; /* pointer to internal file attribute */
- int *methodp; /* pointer to compression method */
-{
- int n; /* iterates over tree elements */
- int bits; /* bit counter */
- int length; /* length value */
- int code; /* code value */
- int dist; /* distance index */
-
- file_type = attr;
- file_method = methodp;
- compressed_len = input_len = 0L;
-
- if (static_dtree[0].Len != 0) return; /* ct_init already called */
-
- /* Initialize the mapping length (0..255) -> length code (0..28) */
- length = 0;
- for (code = 0; code < LENGTH_CODES-1; code++) {
- base_length[code] = length;
- for (n = 0; n < (1<<extra_lbits[code]); n++) {
- length_code[length++] = (uch)code;
- }
- }
- Assert (length == 256, "ct_init: length != 256");
- /* Note that the length 255 (match length 258) can be represented
- * in two different ways: code 284 + 5 bits or code 285, so we
- * overwrite length_code[255] to use the best encoding:
- */
- length_code[length-1] = (uch)code;
-
- /* Initialize the mapping dist (0..32K) -> dist code (0..29) */
- dist = 0;
- for (code = 0 ; code < 16; code++) {
- base_dist[code] = dist;
- for (n = 0; n < (1<<extra_dbits[code]); n++) {
- dist_code[dist++] = (uch)code;
- }
- }
- Assert (dist == 256, "ct_init: dist != 256");
- dist >>= 7; /* from now on, all distances are divided by 128 */
- for ( ; code < D_CODES; code++) {
- base_dist[code] = dist << 7;
- for (n = 0; n < (1<<(extra_dbits[code]-7)); n++) {
- dist_code[256 + dist++] = (uch)code;
- }
- }
- Assert (dist == 256, "ct_init: 256+dist != 512");
-
- /* Construct the codes of the static literal tree */
- for (bits = 0; bits <= MAX_BITS; bits++) bl_count[bits] = 0;
- n = 0;
- while (n <= 143) static_ltree[n++].Len = 8, bl_count[8]++;
- while (n <= 255) static_ltree[n++].Len = 9, bl_count[9]++;
- while (n <= 279) static_ltree[n++].Len = 7, bl_count[7]++;
- while (n <= 287) static_ltree[n++].Len = 8, bl_count[8]++;
- /* Codes 286 and 287 do not exist, but we must include them in the
- * tree construction to get a canonical Huffman tree (longest code
- * all ones)
- */
- gen_codes((ct_data near *)static_ltree, L_CODES+1);
-
- /* The static distance tree is trivial: */
- for (n = 0; n < D_CODES; n++) {
- static_dtree[n].Len = 5;
- static_dtree[n].Code = bi_reverse(n, 5);
- }
-
- /* Initialize the first block of the first file: */
- init_block();
-}
-
-/* ===========================================================================
- * Initialize a new block.
- */
-local void init_block()
-{
- int n; /* iterates over tree elements */
-
- /* Initialize the trees. */
- for (n = 0; n < L_CODES; n++) dyn_ltree[n].Freq = 0;
- for (n = 0; n < D_CODES; n++) dyn_dtree[n].Freq = 0;
- for (n = 0; n < BL_CODES; n++) bl_tree[n].Freq = 0;
-
- dyn_ltree[END_BLOCK].Freq = 1;
- opt_len = static_len = 0L;
- last_lit = last_dist = last_flags = 0;
- flags = 0; flag_bit = 1;
-}
-
-#define SMALLEST 1
-/* Index within the heap array of least frequent node in the Huffman tree */
-
-
-/* ===========================================================================
- * Remove the smallest element from the heap and recreate the heap with
- * one less element. Updates heap and heap_len.
- */
-#define pqremove(tree, top) \
-{\
- top = heap[SMALLEST]; \
- heap[SMALLEST] = heap[heap_len--]; \
- pqdownheap(tree, SMALLEST); \
-}
-
-/* ===========================================================================
- * Compares to subtrees, using the tree depth as tie breaker when
- * the subtrees have equal frequency. This minimizes the worst case length.
- */
-#define smaller(tree, n, m) \
- (tree[n].Freq < tree[m].Freq || \
- (tree[n].Freq == tree[m].Freq && depth[n] <= depth[m]))
-
-/* ===========================================================================
- * Restore the heap property by moving down the tree starting at node k,
- * exchanging a node with the smallest of its two sons if necessary, stopping
- * when the heap property is re-established (each father smaller than its
- * two sons).
- */
-local void pqdownheap(tree, k)
- ct_data near *tree; /* the tree to restore */
- int k; /* node to move down */
-{
- int v = heap[k];
- int j = k << 1; /* left son of k */
- while (j <= heap_len) {
- /* Set j to the smallest of the two sons: */
- if (j < heap_len && smaller(tree, heap[j+1], heap[j])) j++;
-
- /* Exit if v is smaller than both sons */
- if (smaller(tree, v, heap[j])) break;
-
- /* Exchange v with the smallest son */
- heap[k] = heap[j]; k = j;
-
- /* And continue down the tree, setting j to the left son of k */
- j <<= 1;
- }
- heap[k] = v;
-}
-
-/* ===========================================================================
- * Compute the optimal bit lengths for a tree and update the total bit length
- * for the current block.
- * IN assertion: the fields freq and dad are set, heap[heap_max] and
- * above are the tree nodes sorted by increasing frequency.
- * OUT assertions: the field len is set to the optimal bit length, the
- * array bl_count contains the frequencies for each bit length.
- * The length opt_len is updated; static_len is also updated if stree is
- * not null.
- */
-local void gen_bitlen(desc)
- tree_desc near *desc; /* the tree descriptor */
-{
- ct_data near *tree = desc->dyn_tree;
- int near *extra = desc->extra_bits;
- int base = desc->extra_base;
- int max_code = desc->max_code;
- int max_length = desc->max_length;
- ct_data near *stree = desc->static_tree;
- int h; /* heap index */
- int n, m; /* iterate over the tree elements */
- int bits; /* bit length */
- int xbits; /* extra bits */
- ush f; /* frequency */
- int overflow = 0; /* number of elements with bit length too large */
-
- for (bits = 0; bits <= MAX_BITS; bits++) bl_count[bits] = 0;
-
- /* In a first pass, compute the optimal bit lengths (which may
- * overflow in the case of the bit length tree).
- */
- tree[heap[heap_max]].Len = 0; /* root of the heap */
-
- for (h = heap_max+1; h < HEAP_SIZE; h++) {
- n = heap[h];
- bits = tree[tree[n].Dad].Len + 1;
- if (bits > max_length) bits = max_length, overflow++;
- tree[n].Len = (ush)bits;
- /* We overwrite tree[n].Dad which is no longer needed */
-
- if (n > max_code) continue; /* not a leaf node */
-
- bl_count[bits]++;
- xbits = 0;
- if (n >= base) xbits = extra[n-base];
- f = tree[n].Freq;
- opt_len += (ulg)f * (bits + xbits);
- if (stree) static_len += (ulg)f * (stree[n].Len + xbits);
- }
- if (overflow == 0) return;
-
- Trace((stderr,"\nbit length overflow\n"));
- /* This happens for example on obj2 and pic of the Calgary corpus */
-
- /* Find the first bit length which could increase: */
- do {
- bits = max_length-1;
- while (bl_count[bits] == 0) bits--;
- bl_count[bits]--; /* move one leaf down the tree */
- bl_count[bits+1] += 2; /* move one overflow item as its brother */
- bl_count[max_length]--;
- /* The brother of the overflow item also moves one step up,
- * but this does not affect bl_count[max_length]
- */
- overflow -= 2;
- } while (overflow > 0);
-
- /* Now recompute all bit lengths, scanning in increasing frequency.
- * h is still equal to HEAP_SIZE. (It is simpler to reconstruct all
- * lengths instead of fixing only the wrong ones. This idea is taken
- * from 'ar' written by Haruhiko Okumura.)
- */
- for (bits = max_length; bits != 0; bits--) {
- n = bl_count[bits];
- while (n != 0) {
- m = heap[--h];
- if (m > max_code) continue;
- if (tree[m].Len != (unsigned) bits) {
- Trace((stderr,"code %d bits %d->%d\n", m, tree[m].Len, bits));
- opt_len += ((long)bits-(long)tree[m].Len)*(long)tree[m].Freq;
- tree[m].Len = (ush)bits;
- }
- n--;
- }
- }
-}
-
-/* ===========================================================================
- * Generate the codes for a given tree and bit counts (which need not be
- * optimal).
- * IN assertion: the array bl_count contains the bit length statistics for
- * the given tree and the field len is set for all tree elements.
- * OUT assertion: the field code is set for all tree elements of non
- * zero code length.
- */
-local void gen_codes (tree, max_code)
- ct_data near *tree; /* the tree to decorate */
- int max_code; /* largest code with non zero frequency */
-{
- ush next_code[MAX_BITS+1]; /* next code value for each bit length */
- ush code = 0; /* running code value */
- int bits; /* bit index */
- int n; /* code index */
-
- /* The distribution counts are first used to generate the code values
- * without bit reversal.
- */
- for (bits = 1; bits <= MAX_BITS; bits++) {
- next_code[bits] = code = (code + bl_count[bits-1]) << 1;
- }
- /* Check that the bit counts in bl_count are consistent. The last code
- * must be all ones.
- */
- Assert (code + bl_count[MAX_BITS]-1 == (1<<MAX_BITS)-1,
- "inconsistent bit counts");
- Tracev((stderr,"\ngen_codes: max_code %d ", max_code));
-
- for (n = 0; n <= max_code; n++) {
- int len = tree[n].Len;
- if (len == 0) continue;
- /* Now reverse the bits */
- tree[n].Code = bi_reverse(next_code[len]++, len);
-
- Tracec(tree != static_ltree, (stderr,"\nn %3d %c l %2d c %4x (%x) ",
- n, (isgraph(n) ? n : ' '), len, tree[n].Code, next_code[len]-1));
- }
-}
-
-/* ===========================================================================
- * Construct one Huffman tree and assigns the code bit strings and lengths.
- * Update the total bit length for the current block.
- * IN assertion: the field freq is set for all tree elements.
- * OUT assertions: the fields len and code are set to the optimal bit length
- * and corresponding code. The length opt_len is updated; static_len is
- * also updated if stree is not null. The field max_code is set.
- */
-local void build_tree(desc)
- tree_desc near *desc; /* the tree descriptor */
-{
- ct_data near *tree = desc->dyn_tree;
- ct_data near *stree = desc->static_tree;
- int elems = desc->elems;
- int n, m; /* iterate over heap elements */
- int max_code = -1; /* largest code with non zero frequency */
- int node = elems; /* next internal node of the tree */
-
- /* Construct the initial heap, with least frequent element in
- * heap[SMALLEST]. The sons of heap[n] are heap[2*n] and heap[2*n+1].
- * heap[0] is not used.
- */
- heap_len = 0, heap_max = HEAP_SIZE;
-
- for (n = 0; n < elems; n++) {
- if (tree[n].Freq != 0) {
- heap[++heap_len] = max_code = n;
- depth[n] = 0;
- } else {
- tree[n].Len = 0;
- }
- }
-
- /* The pkzip format requires that at least one distance code exists,
- * and that at least one bit should be sent even if there is only one
- * possible code. So to avoid special checks later on we force at least
- * two codes of non zero frequency.
- */
- while (heap_len < 2) {
- int new = heap[++heap_len] = (max_code < 2 ? ++max_code : 0);
- tree[new].Freq = 1;
- depth[new] = 0;
- opt_len--; if (stree) static_len -= stree[new].Len;
- /* new is 0 or 1 so it does not have extra bits */
- }
- desc->max_code = max_code;
-
- /* The elements heap[heap_len/2+1 .. heap_len] are leaves of the tree,
- * establish sub-heaps of increasing lengths:
- */
- for (n = heap_len/2; n >= 1; n--) pqdownheap(tree, n);
-
- /* Construct the Huffman tree by repeatedly combining the least two
- * frequent nodes.
- */
- do {
- pqremove(tree, n); /* n = node of least frequency */
- m = heap[SMALLEST]; /* m = node of next least frequency */
-
- heap[--heap_max] = n; /* keep the nodes sorted by frequency */
- heap[--heap_max] = m;
-
- /* Create a new node father of n and m */
- tree[node].Freq = tree[n].Freq + tree[m].Freq;
- depth[node] = (uch) (MAX(depth[n], depth[m]) + 1);
- tree[n].Dad = tree[m].Dad = (ush)node;
-#ifdef DUMP_BL_TREE
- if (tree == bl_tree) {
- fprintf(stderr,"\nnode %d(%d), sons %d(%d) %d(%d)",
- node, tree[node].Freq, n, tree[n].Freq, m, tree[m].Freq);
- }
-#endif
- /* and insert the new node in the heap */
- heap[SMALLEST] = node++;
- pqdownheap(tree, SMALLEST);
-
- } while (heap_len >= 2);
-
- heap[--heap_max] = heap[SMALLEST];
-
- /* At this point, the fields freq and dad are set. We can now
- * generate the bit lengths.
- */
- gen_bitlen((tree_desc near *)desc);
-
- /* The field len is now set, we can generate the bit codes */
- gen_codes ((ct_data near *)tree, max_code);
-}
-
-/* ===========================================================================
- * Scan a literal or distance tree to determine the frequencies of the codes
- * in the bit length tree. Updates opt_len to take into account the repeat
- * counts. (The contribution of the bit length codes will be added later
- * during the construction of bl_tree.)
- */
-local void scan_tree (tree, max_code)
- ct_data near *tree; /* the tree to be scanned */
- int max_code; /* and its largest code of non zero frequency */
-{
- int n; /* iterates over all tree elements */
- int prevlen = -1; /* last emitted length */
- int curlen; /* length of current code */
- int nextlen = tree[0].Len; /* length of next code */
- int count = 0; /* repeat count of the current code */
- int max_count = 7; /* max repeat count */
- int min_count = 4; /* min repeat count */
-
- if (nextlen == 0) max_count = 138, min_count = 3;
- tree[max_code+1].Len = (ush)0xffff; /* guard */
-
- for (n = 0; n <= max_code; n++) {
- curlen = nextlen; nextlen = tree[n+1].Len;
- if (++count < max_count && curlen == nextlen) {
- continue;
- } else if (count < min_count) {
- bl_tree[curlen].Freq += count;
- } else if (curlen != 0) {
- if (curlen != prevlen) bl_tree[curlen].Freq++;
- bl_tree[REP_3_6].Freq++;
- } else if (count <= 10) {
- bl_tree[REPZ_3_10].Freq++;
- } else {
- bl_tree[REPZ_11_138].Freq++;
- }
- count = 0; prevlen = curlen;
- if (nextlen == 0) {
- max_count = 138, min_count = 3;
- } else if (curlen == nextlen) {
- max_count = 6, min_count = 3;
- } else {
- max_count = 7, min_count = 4;
- }
- }
-}
-
-/* ===========================================================================
- * Send a literal or distance tree in compressed form, using the codes in
- * bl_tree.
- */
-local void send_tree (tree, max_code)
- ct_data near *tree; /* the tree to be scanned */
- int max_code; /* and its largest code of non zero frequency */
-{
- int n; /* iterates over all tree elements */
- int prevlen = -1; /* last emitted length */
- int curlen; /* length of current code */
- int nextlen = tree[0].Len; /* length of next code */
- int count = 0; /* repeat count of the current code */
- int max_count = 7; /* max repeat count */
- int min_count = 4; /* min repeat count */
-
- /* tree[max_code+1].Len = -1; */ /* guard already set */
- if (nextlen == 0) max_count = 138, min_count = 3;
-
- for (n = 0; n <= max_code; n++) {
- curlen = nextlen; nextlen = tree[n+1].Len;
- if (++count < max_count && curlen == nextlen) {
- continue;
- } else if (count < min_count) {
- do { send_code(curlen, bl_tree); } while (--count != 0);
-
- } else if (curlen != 0) {
- if (curlen != prevlen) {
- send_code(curlen, bl_tree); count--;
- }
- Assert(count >= 3 && count <= 6, " 3_6?");
- send_code(REP_3_6, bl_tree); send_bits(count-3, 2);
-
- } else if (count <= 10) {
- send_code(REPZ_3_10, bl_tree); send_bits(count-3, 3);
-
- } else {
- send_code(REPZ_11_138, bl_tree); send_bits(count-11, 7);
- }
- count = 0; prevlen = curlen;
- if (nextlen == 0) {
- max_count = 138, min_count = 3;
- } else if (curlen == nextlen) {
- max_count = 6, min_count = 3;
- } else {
- max_count = 7, min_count = 4;
- }
- }
-}
-
-/* ===========================================================================
- * Construct the Huffman tree for the bit lengths and return the index in
- * bl_order of the last bit length code to send.
- */
-local int build_bl_tree()
-{
- int max_blindex; /* index of last bit length code of non zero freq */
-
- /* Determine the bit length frequencies for literal and distance trees */
- scan_tree((ct_data near *)dyn_ltree, l_desc.max_code);
- scan_tree((ct_data near *)dyn_dtree, d_desc.max_code);
-
- /* Build the bit length tree: */
- build_tree((tree_desc near *)(&bl_desc));
- /* opt_len now includes the length of the tree representations, except
- * the lengths of the bit lengths codes and the 5+5+4 bits for the counts.
- */
-
- /* Determine the number of bit length codes to send. The pkzip format
- * requires that at least 4 bit length codes be sent. (appnote.txt says
- * 3 but the actual value used is 4.)
- */
- for (max_blindex = BL_CODES-1; max_blindex >= 3; max_blindex--) {
- if (bl_tree[bl_order[max_blindex]].Len != 0) break;
- }
- /* Update opt_len to include the bit length tree and counts */
- opt_len += 3*(max_blindex+1) + 5+5+4;
- Tracev((stderr, "\ndyn trees: dyn %ld, stat %ld", opt_len, static_len));
-
- return max_blindex;
-}
-
-/* ===========================================================================
- * Send the header for a block using dynamic Huffman trees: the counts, the
- * lengths of the bit length codes, the literal tree and the distance tree.
- * IN assertion: lcodes >= 257, dcodes >= 1, blcodes >= 4.
- */
-local void send_all_trees(lcodes, dcodes, blcodes)
- int lcodes, dcodes, blcodes; /* number of codes for each tree */
-{
- int rank; /* index in bl_order */
-
- Assert (lcodes >= 257 && dcodes >= 1 && blcodes >= 4, "not enough codes");
- Assert (lcodes <= L_CODES && dcodes <= D_CODES && blcodes <= BL_CODES,
- "too many codes");
- Tracev((stderr, "\nbl counts: "));
- send_bits(lcodes-257, 5); /* not +255 as stated in appnote.txt */
- send_bits(dcodes-1, 5);
- send_bits(blcodes-4, 4); /* not -3 as stated in appnote.txt */
- for (rank = 0; rank < blcodes; rank++) {
- Tracev((stderr, "\nbl code %2d ", bl_order[rank]));
- send_bits(bl_tree[bl_order[rank]].Len, 3);
- }
- Tracev((stderr, "\nbl tree: sent %ld", bits_sent));
-
- send_tree((ct_data near *)dyn_ltree, lcodes-1); /* send the literal tree */
- Tracev((stderr, "\nlit tree: sent %ld", bits_sent));
-
- send_tree((ct_data near *)dyn_dtree, dcodes-1); /* send the distance tree */
- Tracev((stderr, "\ndist tree: sent %ld", bits_sent));
-}
-
-/* ===========================================================================
- * Determine the best encoding for the current block: dynamic trees, static
- * trees or store, and output the encoded block to the zip file. This function
- * returns the total compressed length for the file so far.
- */
-ulg flush_block(buf, stored_len, eof)
- char *buf; /* input block, or NULL if too old */
- ulg stored_len; /* length of input block */
- int eof; /* true if this is the last block for a file */
-{
- ulg opt_lenb, static_lenb; /* opt_len and static_len in bytes */
- int max_blindex; /* index of last bit length code of non zero freq */
-
- flag_buf[last_flags] = flags; /* Save the flags for the last 8 items */
-
- /* Check if the file is ascii or binary */
- if (*file_type == (ush)UNKNOWN) set_file_type();
-
- /* Construct the literal and distance trees */
- build_tree((tree_desc near *)(&l_desc));
- Tracev((stderr, "\nlit data: dyn %ld, stat %ld", opt_len, static_len));
-
- build_tree((tree_desc near *)(&d_desc));
- Tracev((stderr, "\ndist data: dyn %ld, stat %ld", opt_len, static_len));
- /* At this point, opt_len and static_len are the total bit lengths of
- * the compressed block data, excluding the tree representations.
- */
-
- /* Build the bit length tree for the above two trees, and get the index
- * in bl_order of the last bit length code to send.
- */
- max_blindex = build_bl_tree();
-
- /* Determine the best encoding. Compute first the block length in bytes */
- opt_lenb = (opt_len+3+7)>>3;
- static_lenb = (static_len+3+7)>>3;
- input_len += stored_len; /* for debugging only */
-
- Trace((stderr, "\nopt %lu(%lu) stat %lu(%lu) stored %lu lit %u dist %u ",
- opt_lenb, opt_len, static_lenb, static_len, stored_len,
- last_lit, last_dist));
-
- if (static_lenb <= opt_lenb) opt_lenb = static_lenb;
-
- /* If compression failed and this is the first and last block,
- * and if the zip file can be seeked (to rewrite the local header),
- * the whole file is transformed into a stored file:
- */
-#ifdef FORCE_METHOD
- if (level == 1 && eof && compressed_len == 0L) { /* force stored file */
-#else
- if (stored_len <= opt_lenb && eof && compressed_len == 0L && seekable()) {
-#endif
- /* Since LIT_BUFSIZE <= 2*WSIZE, the input data must be there: */
- if (buf == (char*)0) error ("block vanished");
-
- copy_block(buf, (unsigned)stored_len, 0); /* without header */
- compressed_len = stored_len << 3;
- *file_method = STORED;
-
-#ifdef FORCE_METHOD
- } else if (level == 2 && buf != (char*)0) { /* force stored block */
-#else
- } else if (stored_len+4 <= opt_lenb && buf != (char*)0) {
- /* 4: two words for the lengths */
-#endif
- /* The test buf != NULL is only necessary if LIT_BUFSIZE > WSIZE.
- * Otherwise we can't have processed more than WSIZE input bytes since
- * the last block flush, because compression would have been
- * successful. If LIT_BUFSIZE <= WSIZE, it is never too late to
- * transform a block into a stored block.
- */
- send_bits((STORED_BLOCK<<1)+eof, 3); /* send block type */
- compressed_len = (compressed_len + 3 + 7) & ~7L;
- compressed_len += (stored_len + 4) << 3;
-
- copy_block(buf, (unsigned)stored_len, 1); /* with header */
-
-#ifdef FORCE_METHOD
- } else if (level == 3) { /* force static trees */
-#else
- } else if (static_lenb == opt_lenb) {
-#endif
- send_bits((STATIC_TREES<<1)+eof, 3);
- compress_block((ct_data near *)static_ltree, (ct_data near *)static_dtree);
- compressed_len += 3 + static_len;
- } else {
- send_bits((DYN_TREES<<1)+eof, 3);
- send_all_trees(l_desc.max_code+1, d_desc.max_code+1, max_blindex+1);
- compress_block((ct_data near *)dyn_ltree, (ct_data near *)dyn_dtree);
- compressed_len += 3 + opt_len;
- }
- Assert (compressed_len == bits_sent, "bad compressed size");
- init_block();
-
- if (eof) {
- Assert (input_len == isize, "bad input size");
- bi_windup();
- compressed_len += 7; /* align on byte boundary */
- }
- Tracev((stderr,"\ncomprlen %lu(%lu) ", compressed_len>>3,
- compressed_len-7*eof));
-
- return compressed_len >> 3;
-}
-
-/* ===========================================================================
- * Save the match info and tally the frequency counts. Return true if
- * the current block must be flushed.
- */
-int ct_tally (dist, lc)
- int dist; /* distance of matched string */
- int lc; /* match length-MIN_MATCH or unmatched char (if dist==0) */
-{
- l_buf[last_lit++] = (uch)lc;
- if (dist == 0) {
- /* lc is the unmatched char */
- dyn_ltree[lc].Freq++;
- } else {
- /* Here, lc is the match length - MIN_MATCH */
- dist--; /* dist = match distance - 1 */
- Assert((ush)dist < (ush)MAX_DIST &&
- (ush)lc <= (ush)(MAX_MATCH-MIN_MATCH) &&
- (ush)d_code(dist) < (ush)D_CODES, "ct_tally: bad match");
-
- dyn_ltree[length_code[lc]+LITERALS+1].Freq++;
- dyn_dtree[d_code(dist)].Freq++;
-
- d_buf[last_dist++] = (ush)dist;
- flags |= flag_bit;
- }
- flag_bit <<= 1;
-
- /* Output the flags if they fill a byte: */
- if ((last_lit & 7) == 0) {
- flag_buf[last_flags++] = flags;
- flags = 0, flag_bit = 1;
- }
- /* Try to guess if it is profitable to stop the current block here */
- if (level > 2 && (last_lit & 0xfff) == 0) {
- /* Compute an upper bound for the compressed length */
- ulg out_length = (ulg)last_lit*8L;
- ulg in_length = (ulg)strstart-block_start;
- int dcode;
- for (dcode = 0; dcode < D_CODES; dcode++) {
- out_length += (ulg)dyn_dtree[dcode].Freq*(5L+extra_dbits[dcode]);
- }
- out_length >>= 3;
- Trace((stderr,"\nlast_lit %u, last_dist %u, in %ld, out ~%ld(%ld%%) ",
- last_lit, last_dist, in_length, out_length,
- 100L - out_length*100L/in_length));
- if (last_dist < last_lit/2 && out_length < in_length/2) return 1;
- }
- return (last_lit == LIT_BUFSIZE-1 || last_dist == DIST_BUFSIZE);
- /* We avoid equality with LIT_BUFSIZE because of wraparound at 64K
- * on 16 bit machines and because stored blocks are restricted to
- * 64K-1 bytes.
- */
-}
-
-/* ===========================================================================
- * Send the block data compressed using the given Huffman trees
- */
-local void compress_block(ltree, dtree)
- ct_data near *ltree; /* literal tree */
- ct_data near *dtree; /* distance tree */
-{
- unsigned dist; /* distance of matched string */
- int lc; /* match length or unmatched char (if dist == 0) */
- unsigned lx = 0; /* running index in l_buf */
- unsigned dx = 0; /* running index in d_buf */
- unsigned fx = 0; /* running index in flag_buf */
- uch flag = 0; /* current flags */
- unsigned code; /* the code to send */
- int extra; /* number of extra bits to send */
-
- if (last_lit != 0) do {
- if ((lx & 7) == 0) flag = flag_buf[fx++];
- lc = l_buf[lx++];
- if ((flag & 1) == 0) {
- send_code(lc, ltree); /* send a literal byte */
- Tracecv(isgraph(lc), (stderr," '%c' ", lc));
- } else {
- /* Here, lc is the match length - MIN_MATCH */
- code = length_code[lc];
- send_code(code+LITERALS+1, ltree); /* send the length code */
- extra = extra_lbits[code];
- if (extra != 0) {
- lc -= base_length[code];
- send_bits(lc, extra); /* send the extra length bits */
- }
- dist = d_buf[dx++];
- /* Here, dist is the match distance - 1 */
- code = d_code(dist);
- Assert (code < D_CODES, "bad d_code");
-
- send_code(code, dtree); /* send the distance code */
- extra = extra_dbits[code];
- if (extra != 0) {
- dist -= base_dist[code];
- send_bits(dist, extra); /* send the extra distance bits */
- }
- } /* literal or match pair ? */
- flag >>= 1;
- } while (lx < last_lit);
-
- send_code(END_BLOCK, ltree);
-}
-
-/* ===========================================================================
- * Set the file type to ASCII or BINARY, using a crude approximation:
- * binary if more than 20% of the bytes are <= 6 or >= 128, ascii otherwise.
- * IN assertion: the fields freq of dyn_ltree are set and the total of all
- * frequencies does not exceed 64K (to fit in an int on 16 bit machines).
- */
-local void set_file_type()
-{
- int n = 0;
- unsigned ascii_freq = 0;
- unsigned bin_freq = 0;
- while (n < 7) bin_freq += dyn_ltree[n++].Freq;
- while (n < 128) ascii_freq += dyn_ltree[n++].Freq;
- while (n < LITERALS) bin_freq += dyn_ltree[n++].Freq;
- *file_type = bin_freq > (ascii_freq >> 2) ? BINARY : ASCII;
- if (*file_type == BINARY && translate_eol) {
- WARN((stderr, "-l used on binary file"));
- }
-}
diff --git a/gnu/usr.bin/gzip/unlzh.c b/gnu/usr.bin/gzip/unlzh.c
deleted file mode 100644
index 3f7b228..0000000
--- a/gnu/usr.bin/gzip/unlzh.c
+++ /dev/null
@@ -1,405 +0,0 @@
-/* unlzh.c -- decompress files in SCO compress -H (LZH) format.
- * The code in this file is directly derived from the public domain 'ar002'
- * written by Haruhiko Okumura.
- */
-
-#ifdef RCSID
-static char rcsid[] = "$FreeBSD$";
-#endif
-
-#include <stdio.h>
-
-#include "tailor.h"
-#include "gzip.h"
-#include "lzw.h" /* just for consistency checking */
-
-/* decode.c */
-
-local unsigned decode OF((unsigned count, uch buffer[]));
-local void decode_start OF((void));
-
-/* huf.c */
-local void huf_decode_start OF((void));
-local unsigned decode_c OF((void));
-local unsigned decode_p OF((void));
-local void read_pt_len OF((int nn, int nbit, int i_special));
-local void read_c_len OF((void));
-
-/* io.c */
-local void fillbuf OF((int n));
-local unsigned getbits OF((int n));
-local void init_getbits OF((void));
-
-/* maketbl.c */
-
-local void make_table OF((int nchar, uch bitlen[],
- int tablebits, ush table[]));
-
-
-#define DICBIT 13 /* 12(-lh4-) or 13(-lh5-) */
-#define DICSIZ ((unsigned) 1 << DICBIT)
-
-#ifndef CHAR_BIT
-# define CHAR_BIT 8
-#endif
-
-#ifndef UCHAR_MAX
-# define UCHAR_MAX 255
-#endif
-
-#define BITBUFSIZ (CHAR_BIT * 2 * sizeof(char))
-/* Do not use CHAR_BIT * sizeof(bitbuf), does not work on machines
- * for which short is not on 16 bits (Cray).
- */
-
-/* encode.c and decode.c */
-
-#define MAXMATCH 256 /* formerly F (not more than UCHAR_MAX + 1) */
-#define THRESHOLD 3 /* choose optimal value */
-
-/* huf.c */
-
-#define NC (UCHAR_MAX + MAXMATCH + 2 - THRESHOLD)
- /* alphabet = {0, 1, 2, ..., NC - 1} */
-#define CBIT 9 /* $\lfloor \log_2 NC \rfloor + 1$ */
-#define CODE_BIT 16 /* codeword length */
-
-#define NP (DICBIT + 1)
-#define NT (CODE_BIT + 3)
-#define PBIT 4 /* smallest integer such that (1U << PBIT) > NP */
-#define TBIT 5 /* smallest integer such that (1U << TBIT) > NT */
-#if NT > NP
-# define NPT NT
-#else
-# define NPT NP
-#endif
-
-/* local ush left[2 * NC - 1]; */
-/* local ush right[2 * NC - 1]; */
-#define left prev
-#define right head
-#if NC > (1<<(BITS-2))
- error cannot overlay left+right and prev
-#endif
-
-/* local uch c_len[NC]; */
-#define c_len outbuf
-#if NC > OUTBUFSIZ
- error cannot overlay c_len and outbuf
-#endif
-
-local uch pt_len[NPT];
-local unsigned blocksize;
-local ush pt_table[256];
-
-/* local ush c_table[4096]; */
-#define c_table d_buf
-#if (DIST_BUFSIZE-1) < 4095
- error cannot overlay c_table and d_buf
-#endif
-
-/***********************************************************
- io.c -- input/output
-***********************************************************/
-
-local ush bitbuf;
-local unsigned subbitbuf;
-local int bitcount;
-
-local void fillbuf(n) /* Shift bitbuf n bits left, read n bits */
- int n;
-{
- bitbuf <<= n;
- while (n > bitcount) {
- bitbuf |= subbitbuf << (n -= bitcount);
- subbitbuf = (unsigned)try_byte();
- if ((int)subbitbuf == EOF) subbitbuf = 0;
- bitcount = CHAR_BIT;
- }
- bitbuf |= subbitbuf >> (bitcount -= n);
-}
-
-local unsigned getbits(n)
- int n;
-{
- unsigned x;
-
- x = bitbuf >> (BITBUFSIZ - n); fillbuf(n);
- return x;
-}
-
-local void init_getbits()
-{
- bitbuf = 0; subbitbuf = 0; bitcount = 0;
- fillbuf(BITBUFSIZ);
-}
-
-/***********************************************************
- maketbl.c -- make table for decoding
-***********************************************************/
-
-local void make_table(nchar, bitlen, tablebits, table)
- int nchar;
- uch bitlen[];
- int tablebits;
- ush table[];
-{
- ush count[17], weight[17], start[18], *p;
- unsigned i, k, len, ch, jutbits, avail, nextcode, mask;
-
- for (i = 1; i <= 16; i++) count[i] = 0;
- for (i = 0; i < (unsigned)nchar; i++) {
- if (bitlen[i] > 16)
- error("Bad table (case a)\n");
- else count[bitlen[i]]++;
- }
-
- start[1] = 0;
- for (i = 1; i <= 16; i++)
- start[i + 1] = start[i] + (count[i] << (16 - i));
- if ((start[17] & 0xffff) != 0 || tablebits > 16) /* 16 for weight below */
- error("Bad table (case b)\n");
-
- jutbits = 16 - tablebits;
- for (i = 1; i <= (unsigned)tablebits; i++) {
- start[i] >>= jutbits;
- weight[i] = (unsigned) 1 << (tablebits - i);
- }
- while (i <= 16) {
- weight[i] = (unsigned) 1 << (16 - i);
- i++;
- }
-
- i = start[tablebits + 1] >> jutbits;
- if (i != 0) {
- k = MIN(1 << tablebits, DIST_BUFSIZE);
- while (i < k) table[i++] = 0;
- }
-
- avail = nchar;
- mask = (unsigned) 1 << (15 - tablebits);
- for (ch = 0; ch < (unsigned)nchar; ch++) {
- if ((len = bitlen[ch]) == 0) continue;
- nextcode = MIN(start[len] + weight[len], DIST_BUFSIZE);
- if (len <= (unsigned)tablebits) {
- for (i = start[len]; i < nextcode; i++) table[i] = ch;
- } else {
- k = start[len];
- p = &table[k >> jutbits];
- i = len - tablebits;
- while (i != 0) {
- if (*p == 0) {
- right[avail] = left[avail] = 0;
- *p = avail++;
- }
- if (k & mask) p = &right[*p];
- else p = &left[*p];
- k <<= 1; i--;
- }
- *p = ch;
- }
- start[len] = nextcode;
- }
-}
-
-/***********************************************************
- huf.c -- static Huffman
-***********************************************************/
-
-local void read_pt_len(nn, nbit, i_special)
- int nn;
- int nbit;
- int i_special;
-{
- int i, c, n;
- unsigned mask;
-
- n = getbits(nbit);
- if (n == 0) {
- c = getbits(nbit);
- for (i = 0; i < nn; i++) pt_len[i] = 0;
- for (i = 0; i < 256; i++) pt_table[i] = c;
- } else {
- i = 0;
- while (i < MIN(n,NPT)) {
- c = bitbuf >> (BITBUFSIZ - 3);
- if (c == 7) {
- mask = (unsigned) 1 << (BITBUFSIZ - 1 - 3);
- while (mask & bitbuf) { mask >>= 1; c++; }
- }
- fillbuf((c < 7) ? 3 : c - 3);
- pt_len[i++] = c;
- if (i == i_special) {
- c = getbits(2);
- while (--c >= 0 && i < NPT) pt_len[i++] = 0;
- }
- }
- while (i < nn) pt_len[i++] = 0;
- make_table(nn, pt_len, 8, pt_table);
- }
-}
-
-local void read_c_len()
-{
- int i, c, n;
- unsigned mask;
-
- n = getbits(CBIT);
- if (n == 0) {
- c = getbits(CBIT);
- for (i = 0; i < NC; i++) c_len[i] = 0;
- for (i = 0; i < 4096; i++) c_table[i] = c;
- } else {
- i = 0;
- while (i < MIN(n,NC)) {
- c = pt_table[bitbuf >> (BITBUFSIZ - 8)];
- if (c >= NT) {
- mask = (unsigned) 1 << (BITBUFSIZ - 1 - 8);
- do {
- if (bitbuf & mask) c = right[c];
- else c = left [c];
- mask >>= 1;
- } while (c >= NT && (mask || c != left[c]));
- }
- fillbuf((int) pt_len[c]);
- if (c <= 2) {
- if (c == 0) c = 1;
- else if (c == 1) c = getbits(4) + 3;
- else c = getbits(CBIT) + 20;
- while (--c >= 0 && i < NC) c_len[i++] = 0;
- } else c_len[i++] = c - 2;
- }
- while (i < NC) c_len[i++] = 0;
- make_table(NC, c_len, 12, c_table);
- }
-}
-
-local unsigned decode_c()
-{
- unsigned j, mask;
-
- if (blocksize == 0) {
- blocksize = getbits(16);
- if (blocksize == 0) {
- return NC; /* end of file */
- }
- read_pt_len(NT, TBIT, 3);
- read_c_len();
- read_pt_len(NP, PBIT, -1);
- }
- blocksize--;
- j = c_table[bitbuf >> (BITBUFSIZ - 12)];
- if (j >= NC) {
- mask = (unsigned) 1 << (BITBUFSIZ - 1 - 12);
- do {
- if (bitbuf & mask) j = right[j];
- else j = left [j];
- mask >>= 1;
- } while (j >= NC && (mask || j != left[j]));
- }
- fillbuf((int) c_len[j]);
- return j;
-}
-
-local unsigned decode_p()
-{
- unsigned j, mask;
-
- j = pt_table[bitbuf >> (BITBUFSIZ - 8)];
- if (j >= NP) {
- mask = (unsigned) 1 << (BITBUFSIZ - 1 - 8);
- do {
- if (bitbuf & mask) j = right[j];
- else j = left [j];
- mask >>= 1;
- } while (j >= NP && (mask || j != left[j]));
- }
- fillbuf((int) pt_len[j]);
- if (j != 0) j = ((unsigned) 1 << (j - 1)) + getbits((int) (j - 1));
- return j;
-}
-
-local void huf_decode_start()
-{
- init_getbits(); blocksize = 0;
-}
-
-/***********************************************************
- decode.c
-***********************************************************/
-
-local int j; /* remaining bytes to copy */
-local int done; /* set at end of input */
-
-local void decode_start()
-{
- huf_decode_start();
- j = 0;
- done = 0;
-}
-
-/* Decode the input and return the number of decoded bytes put in buffer
- */
-local unsigned decode(count, buffer)
- unsigned count;
- uch buffer[];
- /* The calling function must keep the number of
- bytes to be processed. This function decodes
- either 'count' bytes or 'DICSIZ' bytes, whichever
- is smaller, into the array 'buffer[]' of size
- 'DICSIZ' or more.
- Call decode_start() once for each new file
- before calling this function.
- */
-{
- local unsigned i;
- unsigned r, c;
-
- r = 0;
- while (--j >= 0) {
- buffer[r] = buffer[i];
- i = (i + 1) & (DICSIZ - 1);
- if (++r >= count) return r;
- }
- for ( ; ; ) {
- c = decode_c();
- if (c == NC) {
- done = 1;
- return r;
- }
- if (c <= UCHAR_MAX) {
- buffer[r] = c;
- if (++r >= count) return r;
- } else {
- j = c - (UCHAR_MAX + 1 - THRESHOLD);
- i = (r - decode_p() - 1) & (DICSIZ - 1);
- while (--j >= 0) {
- buffer[r] = buffer[i];
- i = (i + 1) & (DICSIZ - 1);
- if (++r >= count) return r;
- }
- }
- }
-}
-
-
-/* ===========================================================================
- * Unlzh in to out. Return OK or ERROR.
- */
-int unlzh(in, out)
- int in;
- int out;
-{
- unsigned n;
- ifd = in;
- ofd = out;
-
- decode_start();
- while (!done) {
- n = decode((unsigned) DICSIZ, window);
- if (!test && n > 0) {
- write_buf(out, (char*)window, n);
- }
- }
- return OK;
-}
diff --git a/gnu/usr.bin/gzip/unlzw.c b/gnu/usr.bin/gzip/unlzw.c
deleted file mode 100644
index 7e89ca4..0000000
--- a/gnu/usr.bin/gzip/unlzw.c
+++ /dev/null
@@ -1,377 +0,0 @@
-/* unlzw.c -- decompress files in LZW format.
- * The code in this file is directly derived from the public domain 'compress'
- * written by Spencer Thomas, Joe Orost, James Woods, Jim McKie, Steve Davies,
- * Ken Turkowski, Dave Mack and Peter Jannesen.
- *
- * This is a temporary version which will be rewritten in some future version
- * to accommodate in-memory decompression.
- */
-
-#ifdef RCSID
-static char rcsid[] = "$FreeBSD$";
-#endif
-
-#include <sys/types.h>
-
-#include "tailor.h"
-
-#ifdef HAVE_UNISTD_H
-# include <unistd.h>
-#endif
-#ifndef NO_FCNTL_H
-# include <fcntl.h>
-#endif
-
-#include "gzip.h"
-#include "lzw.h"
-
-typedef unsigned char char_type;
-typedef long code_int;
-typedef unsigned long count_int;
-typedef unsigned short count_short;
-typedef unsigned long cmp_code_int;
-
-#define MAXCODE(n) (1L << (n))
-
-#ifndef REGISTERS
-# define REGISTERS 2
-#endif
-#define REG1
-#define REG2
-#define REG3
-#define REG4
-#define REG5
-#define REG6
-#define REG7
-#define REG8
-#define REG9
-#define REG10
-#define REG11
-#define REG12
-#define REG13
-#define REG14
-#define REG15
-#define REG16
-#if REGISTERS >= 1
-# undef REG1
-# define REG1 register
-#endif
-#if REGISTERS >= 2
-# undef REG2
-# define REG2 register
-#endif
-#if REGISTERS >= 3
-# undef REG3
-# define REG3 register
-#endif
-#if REGISTERS >= 4
-# undef REG4
-# define REG4 register
-#endif
-#if REGISTERS >= 5
-# undef REG5
-# define REG5 register
-#endif
-#if REGISTERS >= 6
-# undef REG6
-# define REG6 register
-#endif
-#if REGISTERS >= 7
-# undef REG7
-# define REG7 register
-#endif
-#if REGISTERS >= 8
-# undef REG8
-# define REG8 register
-#endif
-#if REGISTERS >= 9
-# undef REG9
-# define REG9 register
-#endif
-#if REGISTERS >= 10
-# undef REG10
-# define REG10 register
-#endif
-#if REGISTERS >= 11
-# undef REG11
-# define REG11 register
-#endif
-#if REGISTERS >= 12
-# undef REG12
-# define REG12 register
-#endif
-#if REGISTERS >= 13
-# undef REG13
-# define REG13 register
-#endif
-#if REGISTERS >= 14
-# undef REG14
-# define REG14 register
-#endif
-#if REGISTERS >= 15
-# undef REG15
-# define REG15 register
-#endif
-#if REGISTERS >= 16
-# undef REG16
-# define REG16 register
-#endif
-
-#ifndef BYTEORDER
-# define BYTEORDER 0000
-#endif
-
-#ifndef NOALLIGN
-# define NOALLIGN 0
-#endif
-
-
-union bytes {
- long word;
- struct {
-#if BYTEORDER == 4321
- char_type b1;
- char_type b2;
- char_type b3;
- char_type b4;
-#else
-#if BYTEORDER == 1234
- char_type b4;
- char_type b3;
- char_type b2;
- char_type b1;
-#else
-# undef BYTEORDER
- int dummy;
-#endif
-#endif
- } bytes;
-};
-
-#if BYTEORDER == 4321 && NOALLIGN == 1
-# define input(b,o,c,n,m){ \
- (c) = (*(long *)(&(b)[(o)>>3])>>((o)&0x7))&(m); \
- (o) += (n); \
- }
-#else
-# define input(b,o,c,n,m){ \
- REG1 char_type *p = &(b)[(o)>>3]; \
- (c) = ((((long)(p[0]))|((long)(p[1])<<8)| \
- ((long)(p[2])<<16))>>((o)&0x7))&(m); \
- (o) += (n); \
- }
-#endif
-
-#ifndef MAXSEG_64K
- /* DECLARE(ush, tab_prefix, (1<<BITS)); -- prefix code */
-# define tab_prefixof(i) tab_prefix[i]
-# define clear_tab_prefixof() memzero(tab_prefix, 256);
-#else
- /* DECLARE(ush, tab_prefix0, (1<<(BITS-1)); -- prefix for even codes */
- /* DECLARE(ush, tab_prefix1, (1<<(BITS-1)); -- prefix for odd codes */
- ush *tab_prefix[2];
-# define tab_prefixof(i) tab_prefix[(i)&1][(i)>>1]
-# define clear_tab_prefixof() \
- memzero(tab_prefix0, 128), \
- memzero(tab_prefix1, 128);
-#endif
-#define de_stack ((char_type *)(&d_buf[DIST_BUFSIZE-1]))
-#define tab_suffixof(i) tab_suffix[i]
-
-int block_mode = BLOCK_MODE; /* block compress mode -C compatible with 2.0 */
-
-/* ============================================================================
- * Decompress in to out. This routine adapts to the codes in the
- * file building the "string" table on-the-fly; requiring no table to
- * be stored in the compressed file.
- * IN assertions: the buffer inbuf contains already the beginning of
- * the compressed data, from offsets iptr to insize-1 included.
- * The magic header has already been checked and skipped.
- * bytes_in and bytes_out have been initialized.
- */
-int unlzw(in, out)
- int in, out; /* input and output file descriptors */
-{
- REG2 char_type *stackp;
- REG3 code_int code;
- REG4 int finchar;
- REG5 code_int oldcode;
- REG6 code_int incode;
- REG7 long inbits;
- REG8 long posbits;
- REG9 int outpos;
-/* REG10 int insize; (global) */
- REG11 unsigned bitmask;
- REG12 code_int free_ent;
- REG13 code_int maxcode;
- REG14 code_int maxmaxcode;
- REG15 int n_bits;
- REG16 int rsize;
-
-#ifdef MAXSEG_64K
- tab_prefix[0] = tab_prefix0;
- tab_prefix[1] = tab_prefix1;
-#endif
- maxbits = get_byte();
- block_mode = maxbits & BLOCK_MODE;
- if ((maxbits & LZW_RESERVED) != 0) {
- WARN((stderr, "\n%s: %s: warning, unknown flags 0x%x\n",
- progname, ifname, maxbits & LZW_RESERVED));
- }
- maxbits &= BIT_MASK;
- maxmaxcode = MAXCODE(maxbits);
-
- if (maxbits > BITS) {
- fprintf(stderr,
- "\n%s: %s: compressed with %d bits, can only handle %d bits\n",
- progname, ifname, maxbits, BITS);
- exit_code = ERROR;
- return ERROR;
- }
- rsize = insize;
- maxcode = MAXCODE(n_bits = INIT_BITS)-1;
- bitmask = (1<<n_bits)-1;
- oldcode = -1;
- finchar = 0;
- outpos = 0;
- posbits = inptr<<3;
-
- free_ent = ((block_mode) ? FIRST : 256);
-
- clear_tab_prefixof(); /* Initialize the first 256 entries in the table. */
-
- for (code = 255 ; code >= 0 ; --code) {
- tab_suffixof(code) = (char_type)code;
- }
- do {
- REG1 int i;
- int e;
- int o;
-
- resetbuf:
- e = insize-(o = (posbits>>3));
-
- for (i = 0 ; i < e ; ++i) {
- inbuf[i] = inbuf[i+o];
- }
- insize = e;
- posbits = 0;
-
- if (insize < INBUF_EXTRA) {
- if ((rsize = read(in, (char*)inbuf+insize, INBUFSIZ)) == EOF) {
- read_error();
- }
- insize += rsize;
- bytes_in += (ulg)rsize;
- }
- inbits = ((rsize != 0) ? ((long)insize - insize%n_bits)<<3 :
- ((long)insize<<3)-(n_bits-1));
-
- while (inbits > posbits) {
- if (free_ent > maxcode) {
- posbits = ((posbits-1) +
- ((n_bits<<3)-(posbits-1+(n_bits<<3))%(n_bits<<3)));
- ++n_bits;
- if (n_bits == maxbits) {
- maxcode = maxmaxcode;
- } else {
- maxcode = MAXCODE(n_bits)-1;
- }
- bitmask = (1<<n_bits)-1;
- goto resetbuf;
- }
- input(inbuf,posbits,code,n_bits,bitmask);
- Tracev((stderr, "%d ", code));
-
- if (oldcode == -1) {
- if (code >= 256) error("corrupt input.");
- outbuf[outpos++] = (char_type)(finchar = (int)(oldcode=code));
- continue;
- }
- if (code == CLEAR && block_mode) {
- clear_tab_prefixof();
- free_ent = FIRST - 1;
- posbits = ((posbits-1) +
- ((n_bits<<3)-(posbits-1+(n_bits<<3))%(n_bits<<3)));
- maxcode = MAXCODE(n_bits = INIT_BITS)-1;
- bitmask = (1<<n_bits)-1;
- goto resetbuf;
- }
- incode = code;
- stackp = de_stack;
-
- if (code >= free_ent) { /* Special case for KwKwK string. */
- if (code > free_ent) {
-#ifdef DEBUG
- char_type *p;
-
- posbits -= n_bits;
- p = &inbuf[posbits>>3];
- fprintf(stderr,
- "code:%ld free_ent:%ld n_bits:%d insize:%u\n",
- code, free_ent, n_bits, insize);
- fprintf(stderr,
- "posbits:%ld inbuf:%02X %02X %02X %02X %02X\n",
- posbits, p[-1],p[0],p[1],p[2],p[3]);
-#endif
- if (!test && outpos > 0) {
- write_buf(out, (char*)outbuf, outpos);
- bytes_out += (ulg)outpos;
- }
- error(to_stdout ? "corrupt input." :
- "corrupt input. Use zcat to recover some data.");
- }
- *--stackp = (char_type)finchar;
- code = oldcode;
- }
-
- while ((cmp_code_int)code >= (cmp_code_int)256) {
- /* Generate output characters in reverse order */
- *--stackp = tab_suffixof(code);
- code = tab_prefixof(code);
- }
- *--stackp = (char_type)(finchar = tab_suffixof(code));
-
- /* And put them out in forward order */
- {
- REG1 int i;
-
- if (outpos+(i = (de_stack-stackp)) >= OUTBUFSIZ) {
- do {
- if (i > OUTBUFSIZ-outpos) i = OUTBUFSIZ-outpos;
-
- if (i > 0) {
- memcpy(outbuf+outpos, stackp, i);
- outpos += i;
- }
- if (outpos >= OUTBUFSIZ) {
- if (!test) {
- write_buf(out, (char*)outbuf, outpos);
- bytes_out += (ulg)outpos;
- }
- outpos = 0;
- }
- stackp+= i;
- } while ((i = (de_stack-stackp)) > 0);
- } else {
- memcpy(outbuf+outpos, stackp, i);
- outpos += i;
- }
- }
-
- if ((code = free_ent) < maxmaxcode) { /* Generate the new entry. */
-
- tab_prefixof(code) = (unsigned short)oldcode;
- tab_suffixof(code) = (char_type)finchar;
- free_ent = code+1;
- }
- oldcode = incode; /* Remember previous code. */
- }
- } while (rsize != 0);
-
- if (!test && outpos > 0) {
- write_buf(out, (char*)outbuf, outpos);
- bytes_out += (ulg)outpos;
- }
- return OK;
-}
diff --git a/gnu/usr.bin/gzip/unpack.c b/gnu/usr.bin/gzip/unpack.c
deleted file mode 100644
index b62d810..0000000
--- a/gnu/usr.bin/gzip/unpack.c
+++ /dev/null
@@ -1,238 +0,0 @@
-/* unpack.c -- decompress files in pack format.
- * Copyright (C) 1992-1993 Jean-loup Gailly
- * This is free software; you can redistribute it and/or modify it under the
- * terms of the GNU General Public License, see the file COPYING.
- */
-
-#ifdef RCSID
-static char rcsid[] = "$FreeBSD$";
-#endif
-
-#include "tailor.h"
-#include "gzip.h"
-#include "crypt.h"
-
-/* The arguments must not have side effects. */
-
-#define MAX_BITLEN 25
-/* Maximum length of Huffman codes. (Minor modifications to the code
- * would be needed to support 32 bits codes, but pack never generates
- * more than 24 bits anyway.)
- */
-
-#define LITERALS 256
-/* Number of literals, excluding the End of Block (EOB) code */
-
-#define MAX_PEEK 12
-/* Maximum number of 'peek' bits used to optimize traversal of the
- * Huffman tree.
- */
-
-local ulg orig_len; /* original uncompressed length */
-local int max_len; /* maximum bit length of Huffman codes */
-
-local uch literal[LITERALS];
-/* The literal bytes present in the Huffman tree. The EOB code is not
- * represented.
- */
-
-local int lit_base[MAX_BITLEN+1];
-/* All literals of a given bit length are contiguous in literal[] and
- * have contiguous codes. literal[code+lit_base[len]] is the literal
- * for a code of len bits.
- */
-
-local int leaves [MAX_BITLEN+1]; /* Number of leaves for each bit length */
-local int parents[MAX_BITLEN+1]; /* Number of parents for each bit length */
-
-local int peek_bits; /* Number of peek bits currently used */
-
-/* local uch prefix_len[1 << MAX_PEEK]; */
-#define prefix_len outbuf
-/* For each bit pattern b of peek_bits bits, prefix_len[b] is the length
- * of the Huffman code starting with a prefix of b (upper bits), or 0
- * if all codes of prefix b have more than peek_bits bits. It is not
- * necessary to have a huge table (large MAX_PEEK) because most of the
- * codes encountered in the input stream are short codes (by construction).
- * So for most codes a single lookup will be necessary.
- */
-#if (1<<MAX_PEEK) > OUTBUFSIZ
- error cannot overlay prefix_len and outbuf
-#endif
-
-local ulg bitbuf;
-/* Bits are added on the low part of bitbuf and read from the high part. */
-
-local int valid; /* number of valid bits in bitbuf */
-/* all bits above the last valid bit are always zero */
-
-/* Set code to the next 'bits' input bits without skipping them. code
- * must be the name of a simple variable and bits must not have side effects.
- * IN assertions: bits <= 25 (so that we still have room for an extra byte
- * when valid is only 24), and mask = (1<<bits)-1.
- */
-#define look_bits(code,bits,mask) \
-{ \
- while (valid < (bits)) bitbuf = (bitbuf<<8) | (ulg)get_byte(), valid += 8; \
- code = (bitbuf >> (valid-(bits))) & (mask); \
-}
-
-/* Skip the given number of bits (after having peeked at them): */
-#define skip_bits(bits) (valid -= (bits))
-
-#define clear_bitbuf() (valid = 0, bitbuf = 0)
-
-/* Local functions */
-
-local void read_tree OF((void));
-local void build_tree OF((void));
-
-/* ===========================================================================
- * Read the Huffman tree.
- */
-local void read_tree()
-{
- int len; /* bit length */
- int base; /* base offset for a sequence of leaves */
- int n;
-
- /* Read the original input size, MSB first */
- orig_len = 0;
- for (n = 1; n <= 4; n++) orig_len = (orig_len << 8) | (ulg)get_byte();
-
- max_len = (int)get_byte(); /* maximum bit length of Huffman codes */
- if (max_len > MAX_BITLEN) {
- error("invalid compressed data -- Huffman code > 32 bits");
- }
-
- /* Get the number of leaves at each bit length */
- n = 0;
- for (len = 1; len <= max_len; len++) {
- leaves[len] = (int)get_byte();
- n += leaves[len];
- }
- if (n > LITERALS) {
- error("too many leaves in Huffman tree");
- }
- Trace((stderr, "orig_len %ld, max_len %d, leaves %d\n",
- orig_len, max_len, n));
- /* There are at least 2 and at most 256 leaves of length max_len.
- * (Pack arbitrarily rejects empty files and files consisting of
- * a single byte even repeated.) To fit the last leaf count in a
- * byte, it is offset by 2. However, the last literal is the EOB
- * code, and is not transmitted explicitly in the tree, so we must
- * adjust here by one only.
- */
- leaves[max_len]++;
-
- /* Now read the leaves themselves */
- base = 0;
- for (len = 1; len <= max_len; len++) {
- /* Remember where the literals of this length start in literal[] : */
- lit_base[len] = base;
- /* And read the literals: */
- for (n = leaves[len]; n > 0 && base < LITERALS; n--) {
- literal[base++] = (uch)get_byte();
- }
- }
- leaves[max_len]++; /* Now include the EOB code in the Huffman tree */
-}
-
-/* ===========================================================================
- * Build the Huffman tree and the prefix table.
- */
-local void build_tree()
-{
- int nodes = 0; /* number of nodes (parents+leaves) at current bit length */
- int len; /* current bit length */
- uch *prefixp; /* pointer in prefix_len */
-
- for (len = max_len; len >= 1; len--) {
- /* The number of parent nodes at this level is half the total
- * number of nodes at parent level:
- */
- nodes >>= 1;
- parents[len] = nodes;
- /* Update lit_base by the appropriate bias to skip the parent nodes
- * (which are not represented in the literal array):
- */
- lit_base[len] -= nodes;
- /* Restore nodes to be parents+leaves: */
- nodes += leaves[len];
- }
- /* Construct the prefix table, from shortest leaves to longest ones.
- * The shortest code is all ones, so we start at the end of the table.
- */
- peek_bits = MIN(max_len, MAX_PEEK);
- prefixp = &prefix_len[1<<peek_bits];
- for (len = 1; len <= peek_bits; len++) {
- int prefixes = leaves[len] << (peek_bits-len); /* may be 0 */
- while (prefixes-- && prefixp > prefix_len) *--prefixp = (uch)len;
- }
- /* The length of all other codes is unknown: */
- while (prefixp > prefix_len) *--prefixp = 0;
-}
-
-/* ===========================================================================
- * Unpack in to out. This routine does not support the old pack format
- * with magic header \037\037.
- *
- * IN assertions: the buffer inbuf contains already the beginning of
- * the compressed data, from offsets inptr to insize-1 included.
- * The magic header has already been checked. The output buffer is cleared.
- */
-int unpack(in, out)
- int in, out; /* input and output file descriptors */
-{
- int len; /* Bit length of current code */
- unsigned eob; /* End Of Block code */
- register unsigned peek; /* lookahead bits */
- unsigned peek_mask; /* Mask for peek_bits bits */
-
- ifd = in;
- ofd = out;
-
- read_tree(); /* Read the Huffman tree */
- build_tree(); /* Build the prefix table */
- clear_bitbuf(); /* Initialize bit input */
- peek_mask = (1<<peek_bits)-1;
-
- /* The eob code is the largest code among all leaves of maximal length: */
- eob = leaves[max_len]-1;
- Trace((stderr, "eob %d %x\n", max_len, eob));
-
- /* Decode the input data: */
- for (;;) {
- /* Since eob is the longest code and not shorter than max_len,
- * we can peek at max_len bits without having the risk of reading
- * beyond the end of file.
- */
- look_bits(peek, peek_bits, peek_mask);
- len = prefix_len[peek];
- if (len > 0) {
- peek >>= peek_bits - len; /* discard the extra bits */
- } else {
- /* Code of more than peek_bits bits, we must traverse the tree */
- ulg mask = peek_mask;
- len = peek_bits;
- do {
- len++, mask = (mask<<1)+1;
- look_bits(peek, len, mask);
- } while (peek < (unsigned)parents[len]);
- /* loop as long as peek is a parent node */
- }
- /* At this point, peek is the next complete code, of len bits */
- if (peek == eob && len == max_len) break; /* end of file? */
- put_ubyte(literal[peek+lit_base[len]]);
- Tracev((stderr,"%02d %04x %c\n", len, peek,
- literal[peek+lit_base[len]]));
- skip_bits(len);
- } /* for (;;) */
-
- flush_window();
- Trace((stderr, "bytes_out %ld\n", bytes_out));
- if (orig_len != (ulg)bytes_out) {
- error("invalid compressed data--length error");
- }
- return OK;
-}
diff --git a/gnu/usr.bin/gzip/unzip.c b/gnu/usr.bin/gzip/unzip.c
deleted file mode 100644
index b103a7f..0000000
--- a/gnu/usr.bin/gzip/unzip.c
+++ /dev/null
@@ -1,205 +0,0 @@
-/* unzip.c -- decompress files in gzip or pkzip format.
- * Copyright (C) 1992-1993 Jean-loup Gailly
- * This is free software; you can redistribute it and/or modify it under the
- * terms of the GNU General Public License, see the file COPYING.
- *
- * The code in this file is derived from the file funzip.c written
- * and put in the public domain by Mark Adler.
- */
-
-/*
- This version can extract files in gzip or pkzip format.
- For the latter, only the first entry is extracted, and it has to be
- either deflated or stored.
- */
-
-#ifdef RCSID
-static char rcsid[] = "$Id: unzip.c,v 0.13 1993/06/10 13:29:00 jloup Exp $";
-#endif
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-#include "tailor.h"
-#include "gzip.h"
-#include "crypt.h"
-
-/* PKZIP header definitions */
-#define LOCSIG 0x04034b50L /* four-byte lead-in (lsb first) */
-#define LOCFLG 6 /* offset of bit flag */
-#define CRPFLG 1 /* bit for encrypted entry */
-#define EXTFLG 8 /* bit for extended local header */
-#define LOCHOW 8 /* offset of compression method */
-#define LOCTIM 10 /* file mod time (for decryption) */
-#define LOCCRC 14 /* offset of crc */
-#define LOCSIZ 18 /* offset of compressed size */
-#define LOCLEN 22 /* offset of uncompressed length */
-#define LOCFIL 26 /* offset of file name field length */
-#define LOCEXT 28 /* offset of extra field length */
-#define LOCHDR 30 /* size of local header, including sig */
-#define EXTHDR 16 /* size of extended local header, inc sig */
-#define RAND_HEAD_LEN 12 /* length of encryption random header */
-
-
-/* Globals */
-
-int decrypt; /* flag to turn on decryption */
-char *key; /* not used--needed to link crypt.c */
-int pkzip = 0; /* set for a pkzip file */
-int ext_header = 0; /* set if extended local header */
-
-/* ===========================================================================
- * Check zip file and advance inptr to the start of the compressed data.
- * Get ofname from the local header if necessary.
- */
-int check_zipfile(in)
- int in; /* input file descriptors */
-{
- uch *h = inbuf + inptr; /* first local header */
-
- ifd = in;
-
- /* Check validity of local header, and skip name and extra fields */
- inptr += LOCHDR + SH(h + LOCFIL) + SH(h + LOCEXT);
-
- if (inptr > insize || LG(h) != LOCSIG) {
- fprintf(stderr, "\n%s: %s: not a valid zip file\n",
- progname, ifname);
- exit_code = ERROR;
- return ERROR;
- }
- method = h[LOCHOW];
- if (method != STORED && method != DEFLATED) {
- fprintf(stderr,
- "\n%s: %s: first entry not deflated or stored -- use unzip\n",
- progname, ifname);
- exit_code = ERROR;
- return ERROR;
- }
-
- /* If entry encrypted, decrypt and validate encryption header */
- if ((decrypt = h[LOCFLG] & CRPFLG) != 0) {
- fprintf(stderr, "\n%s: %s: encrypted file -- use unzip\n",
- progname, ifname);
- exit_code = ERROR;
- return ERROR;
- }
-
- /* Save flags for unzip() */
- ext_header = (h[LOCFLG] & EXTFLG) != 0;
- pkzip = 1;
-
- /* Get ofname and time stamp from local header (to be done) */
- return OK;
-}
-
-/* ===========================================================================
- * Unzip in to out. This routine works on both gzip and pkzip files.
- *
- * IN assertions: the buffer inbuf contains already the beginning of
- * the compressed data, from offsets inptr to insize-1 included.
- * The magic header has already been checked. The output buffer is cleared.
- */
-int unzip(in, out)
- int in, out; /* input and output file descriptors */
-{
- ulg orig_crc = 0; /* original crc */
- ulg orig_len = 0; /* original uncompressed length */
- int n;
- uch buf[EXTHDR]; /* extended local header */
- int err = OK;
-
- ifd = in;
- ofd = out;
-
- updcrc(NULL, 0); /* initialize crc */
-
- if (pkzip && !ext_header) { /* crc and length at the end otherwise */
- orig_crc = LG(inbuf + LOCCRC);
- orig_len = LG(inbuf + LOCLEN);
- }
-
- /* Decompress */
- if (method == DEFLATED) {
-
- int res = inflate();
-
- if (res == 3) {
- error("out of memory");
- } else if (res != 0) {
- error("invalid compressed data--format violated");
- }
-
- } else if (pkzip && method == STORED) {
-
- register ulg n = LG(inbuf + LOCLEN);
-
- if (n != LG(inbuf + LOCSIZ) - (decrypt ? RAND_HEAD_LEN : 0)) {
-
- fprintf(stderr, "len %ld, siz %ld\n", n, LG(inbuf + LOCSIZ));
- error("invalid compressed data--length mismatch");
- }
- while (n--) {
- uch c = (uch)get_byte();
- put_ubyte(c);
- }
- flush_window();
- } else {
- error("internal error, invalid method");
- }
-
- /* Get the crc and original length */
- if (!pkzip) {
- /* crc32 (see algorithm.doc)
- * uncompressed input size modulo 2^32
- */
- for (n = 0; n < 8; n++) {
- buf[n] = (uch)get_byte(); /* may cause an error if EOF */
- }
- orig_crc = LG(buf);
- orig_len = LG(buf+4);
-
- } else if (ext_header) { /* If extended header, check it */
- /* signature - 4bytes: 0x50 0x4b 0x07 0x08
- * CRC-32 value
- * compressed size 4-bytes
- * uncompressed size 4-bytes
- */
- for (n = 0; n < EXTHDR; n++) {
- buf[n] = (uch)get_byte(); /* may cause an error if EOF */
- }
- orig_crc = LG(buf+4);
- orig_len = LG(buf+12);
- }
-
- /* Validate decompression */
- if (orig_crc != updcrc(outbuf, 0)) {
- fprintf(stderr, "\n%s: %s: invalid compressed data--crc error\n",
- progname, ifname);
- err = ERROR;
- }
- if (((orig_len - (ulg)bytes_out) & 0x0ffffffffL) != 0) {
- fprintf(stderr, "\n%s: %s: invalid compressed data--length error\n",
- progname, ifname);
- err = ERROR;
- }
-
- /* Check if there are more entries in a pkzip file */
- if (pkzip && inptr + 4 < insize && LG(inbuf+inptr) == LOCSIG) {
- if (to_stdout) {
- WARN((stderr,
- "%s: %s has more than one entry--rest ignored\n",
- progname, ifname));
- } else {
- /* Don't destroy the input zip file */
- fprintf(stderr,
- "%s: %s has more than one entry -- unchanged\n",
- progname, ifname);
- err = ERROR;
- }
- }
- ext_header = pkzip = 0; /* for next file */
- if (err == OK) return OK;
- exit_code = ERROR;
- if (!test) abort_gzip();
- return err;
-}
diff --git a/gnu/usr.bin/gzip/util.c b/gnu/usr.bin/gzip/util.c
deleted file mode 100644
index 684cc5d..0000000
--- a/gnu/usr.bin/gzip/util.c
+++ /dev/null
@@ -1,456 +0,0 @@
-/* util.c -- utility functions for gzip support
- * Copyright (C) 1992-1993 Jean-loup Gailly
- * This is free software; you can redistribute it and/or modify it under the
- * terms of the GNU General Public License, see the file COPYING.
- */
-
-#ifdef RCSID
-static char rcsid[] = "$FreeBSD$";
-#endif
-
-#include <ctype.h>
-#include <errno.h>
-#include <sys/types.h>
-
-#include "tailor.h"
-
-#ifdef HAVE_UNISTD_H
-# include <unistd.h>
-#endif
-#ifndef NO_FCNTL_H
-# include <fcntl.h>
-#endif
-
-#if defined(STDC_HEADERS) || !defined(NO_STDLIB_H)
-# include <stdlib.h>
-#else
- extern int errno;
-#endif
-
-#include "gzip.h"
-#include "crypt.h"
-
-extern ulg crc_32_tab[]; /* crc table, defined below */
-
-/* ===========================================================================
- * Copy input to output unchanged: zcat == cat with --force.
- * IN assertion: insize bytes have already been read in inbuf.
- */
-int copy(in, out)
- int in, out; /* input and output file descriptors */
-{
- errno = 0;
- while (insize != 0 && (int)insize != EOF) {
- write_buf(out, (char*)inbuf, insize);
- bytes_out += insize;
- insize = read(in, (char*)inbuf, INBUFSIZ);
- }
- if ((int)insize == EOF && errno != 0) {
- read_error();
- }
- bytes_in = bytes_out;
- return OK;
-}
-
-/* ===========================================================================
- * Run a set of bytes through the crc shift register. If s is a NULL
- * pointer, then initialize the crc shift register contents instead.
- * Return the current crc in either case.
- */
-ulg updcrc(s, n)
- uch *s; /* pointer to bytes to pump through */
- unsigned n; /* number of bytes in s[] */
-{
- register ulg c; /* temporary variable */
-
- static ulg crc = (ulg)0xffffffffL; /* shift register contents */
-
- if (s == NULL) {
- c = 0xffffffffL;
- } else {
- c = crc;
- if (n) do {
- c = crc_32_tab[((int)c ^ (*s++)) & 0xff] ^ (c >> 8);
- } while (--n);
- }
- crc = c;
- return c ^ 0xffffffffL; /* (instead of ~c for 64-bit machines) */
-}
-
-/* ===========================================================================
- * Clear input and output buffers
- */
-void clear_bufs()
-{
- outcnt = 0;
- insize = inptr = 0;
- bytes_in = bytes_out = 0L;
-}
-
-/* ===========================================================================
- * Fill the input buffer. This is called only when the buffer is empty.
- */
-int fill_inbuf(eof_ok)
- int eof_ok; /* set if EOF acceptable as a result */
-{
- int len;
-
- /* Read as much as possible */
- insize = 0;
- errno = 0;
- do {
- len = read(ifd, (char*)inbuf+insize, INBUFSIZ-insize);
- if (len == 0 || len == EOF) break;
- insize += len;
- } while (insize < INBUFSIZ);
-
- if (insize == 0) {
- if (eof_ok) return EOF;
- read_error();
- }
- bytes_in += (ulg)insize;
- inptr = 1;
- return inbuf[0];
-}
-
-/* ===========================================================================
- * Write the output buffer outbuf[0..outcnt-1] and update bytes_out.
- * (used for the compressed data only)
- */
-void flush_outbuf()
-{
- if (outcnt == 0) return;
-
- write_buf(ofd, (char *)outbuf, outcnt);
- bytes_out += (ulg)outcnt;
- outcnt = 0;
-}
-
-/* ===========================================================================
- * Write the output window window[0..outcnt-1] and update crc and bytes_out.
- * (Used for the decompressed data only.)
- */
-void flush_window()
-{
- if (outcnt == 0) return;
- updcrc(window, outcnt);
-
- if (!test) {
- write_buf(ofd, (char *)window, outcnt);
- }
- bytes_out += (ulg)outcnt;
- outcnt = 0;
-}
-
-/* ===========================================================================
- * Does the same as write(), but also handles partial pipe writes and checks
- * for error return.
- */
-void write_buf(fd, buf, cnt)
- int fd;
- voidp buf;
- unsigned cnt;
-{
- unsigned n;
-
- while ((n = write(fd, buf, cnt)) != cnt) {
- if (n == (unsigned)(-1)) {
- write_error();
- }
- cnt -= n;
- buf = (voidp)((char*)buf+n);
- }
-}
-
-/* ========================================================================
- * Put string s in lower case, return s.
- */
-char *strlwr(s)
- char *s;
-{
- char *t;
- for (t = s; *t; t++) *t = tolow(*t);
- return s;
-}
-
-/* ========================================================================
- * Return the base name of a file (remove any directory prefix and
- * any version suffix). For systems with file names that are not
- * case sensitive, force the base name to lower case.
- */
-char *basename(fname)
- char *fname;
-{
- char *p;
-
- if ((p = strrchr(fname, PATH_SEP)) != NULL) fname = p+1;
-#ifdef PATH_SEP2
- if ((p = strrchr(fname, PATH_SEP2)) != NULL) fname = p+1;
-#endif
-#ifdef PATH_SEP3
- if ((p = strrchr(fname, PATH_SEP3)) != NULL) fname = p+1;
-#endif
-#ifdef SUFFIX_SEP
- if ((p = strrchr(fname, SUFFIX_SEP)) != NULL) *p = '\0';
-#endif
- if (casemap('A') == 'a') strlwr(fname);
- return fname;
-}
-
-/* ========================================================================
- * Make a file name legal for file systems not allowing file names with
- * multiple dots or starting with a dot (such as MSDOS), by changing
- * all dots except the last one into underlines. A target dependent
- * function can be used instead of this simple function by defining the macro
- * MAKE_LEGAL_NAME in tailor.h and providing the function in a target
- * dependent module.
- */
-void make_simple_name(name)
- char *name;
-{
- char *p = strrchr(name, '.');
- if (p == NULL) return;
- if (p == name) p++;
- do {
- if (*--p == '.') *p = '_';
- } while (p != name);
-}
-
-
-#if defined(NO_STRING_H) && !defined(STDC_HEADERS)
-
-/* Provide missing strspn and strcspn functions. */
-
-# ifndef __STDC__
-# define const
-# endif
-
-int strspn OF((const char *s, const char *accept));
-int strcspn OF((const char *s, const char *reject));
-
-/* ========================================================================
- * Return the length of the maximum initial segment
- * of s which contains only characters in accept.
- */
-int strspn(s, accept)
- const char *s;
- const char *accept;
-{
- register const char *p;
- register const char *a;
- register int count = 0;
-
- for (p = s; *p != '\0'; ++p) {
- for (a = accept; *a != '\0'; ++a) {
- if (*p == *a) break;
- }
- if (*a == '\0') return count;
- ++count;
- }
- return count;
-}
-
-/* ========================================================================
- * Return the length of the maximum inital segment of s
- * which contains no characters from reject.
- */
-int strcspn(s, reject)
- const char *s;
- const char *reject;
-{
- register int count = 0;
-
- while (*s != '\0') {
- if (strchr(reject, *s++) != NULL) return count;
- ++count;
- }
- return count;
-}
-
-#endif /* NO_STRING_H */
-
-/* ========================================================================
- * Add an environment variable (if any) before argv, and update argc.
- * Return the expanded environment variable to be freed later, or NULL
- * if no options were added to argv.
- */
-#define SEPARATOR " \t" /* separators in env variable */
-
-char *add_envopt(argcp, argvp, env)
- int *argcp; /* pointer to argc */
- char ***argvp; /* pointer to argv */
- char *env; /* name of environment variable */
-{
- char *p; /* running pointer through env variable */
- char **oargv; /* runs through old argv array */
- char **nargv; /* runs through new argv array */
- int oargc = *argcp; /* old argc */
- int nargc = 0; /* number of arguments in env variable */
-
- env = (char*)getenv(env);
- if (env == NULL) return NULL;
-
- p = (char*)xmalloc(strlen(env)+1);
- env = strcpy(p, env); /* keep env variable intact */
-
- for (p = env; *p; nargc++ ) { /* move through env */
- p += strspn(p, SEPARATOR); /* skip leading separators */
- if (*p == '\0') break;
-
- p += strcspn(p, SEPARATOR); /* find end of word */
- if (*p) *p++ = '\0'; /* mark it */
- }
- if (nargc == 0) {
- free(env);
- return NULL;
- }
- *argcp += nargc;
- /* Allocate the new argv array, with an extra element just in case
- * the original arg list did not end with a NULL.
- */
- nargv = (char**)calloc(*argcp+1, sizeof(char *));
- if (nargv == NULL) error("out of memory");
- oargv = *argvp;
- *argvp = nargv;
-
- /* Copy the program name first */
- if (oargc-- < 0) error("argc<=0");
- *(nargv++) = *(oargv++);
-
- /* Then copy the environment args */
- for (p = env; nargc > 0; nargc--) {
- p += strspn(p, SEPARATOR); /* skip separators */
- *(nargv++) = p; /* store start */
- while (*p++) ; /* skip over word */
- }
-
- /* Finally copy the old args and add a NULL (usual convention) */
- while (oargc--) *(nargv++) = *(oargv++);
- *nargv = NULL;
- return env;
-}
-
-/* ========================================================================
- * Error handlers.
- */
-void error(m)
- char *m;
-{
- fprintf(stderr, "\n%s: %s: %s\n", progname, ifname, m);
- abort_gzip();
-}
-
-void read_error()
-{
- fprintf(stderr, "\n%s: ", progname);
- if (errno != 0) {
- perror(ifname);
- } else {
- fprintf(stderr, "%s: unexpected end of file\n", ifname);
- }
- abort_gzip();
-}
-
-void write_error()
-{
- fprintf(stderr, "\n%s: ", progname);
- perror(ofname);
- abort_gzip();
-}
-
-/* ========================================================================
- * Display compression ratio on the given stream on 6 characters.
- */
-void display_ratio(num, den, file)
- long num;
- long den;
- FILE *file;
-{
- long ratio; /* 1000 times the compression ratio */
-
- if (den == 0) {
- ratio = 0; /* no compression */
- } else if (den < 2147483L) { /* (2**31 -1)/1000 */
- ratio = 1000L*num/den;
- } else {
- ratio = num/(den/1000L);
- }
- if (ratio < 0) {
- putc('-', file);
- ratio = -ratio;
- } else {
- putc(' ', file);
- }
- fprintf(file, "%2ld.%1ld%%", ratio / 10L, ratio % 10L);
-}
-
-
-/* ========================================================================
- * Semi-safe malloc -- never returns NULL.
- */
-voidp xmalloc (size)
- unsigned size;
-{
- voidp cp = (voidp)malloc (size);
-
- if (cp == NULL) error("out of memory");
- return cp;
-}
-
-/* ========================================================================
- * Table of CRC-32's of all single-byte values (made by makecrc.c)
- */
-ulg crc_32_tab[] = {
- 0x00000000L, 0x77073096L, 0xee0e612cL, 0x990951baL, 0x076dc419L,
- 0x706af48fL, 0xe963a535L, 0x9e6495a3L, 0x0edb8832L, 0x79dcb8a4L,
- 0xe0d5e91eL, 0x97d2d988L, 0x09b64c2bL, 0x7eb17cbdL, 0xe7b82d07L,
- 0x90bf1d91L, 0x1db71064L, 0x6ab020f2L, 0xf3b97148L, 0x84be41deL,
- 0x1adad47dL, 0x6ddde4ebL, 0xf4d4b551L, 0x83d385c7L, 0x136c9856L,
- 0x646ba8c0L, 0xfd62f97aL, 0x8a65c9ecL, 0x14015c4fL, 0x63066cd9L,
- 0xfa0f3d63L, 0x8d080df5L, 0x3b6e20c8L, 0x4c69105eL, 0xd56041e4L,
- 0xa2677172L, 0x3c03e4d1L, 0x4b04d447L, 0xd20d85fdL, 0xa50ab56bL,
- 0x35b5a8faL, 0x42b2986cL, 0xdbbbc9d6L, 0xacbcf940L, 0x32d86ce3L,
- 0x45df5c75L, 0xdcd60dcfL, 0xabd13d59L, 0x26d930acL, 0x51de003aL,
- 0xc8d75180L, 0xbfd06116L, 0x21b4f4b5L, 0x56b3c423L, 0xcfba9599L,
- 0xb8bda50fL, 0x2802b89eL, 0x5f058808L, 0xc60cd9b2L, 0xb10be924L,
- 0x2f6f7c87L, 0x58684c11L, 0xc1611dabL, 0xb6662d3dL, 0x76dc4190L,
- 0x01db7106L, 0x98d220bcL, 0xefd5102aL, 0x71b18589L, 0x06b6b51fL,
- 0x9fbfe4a5L, 0xe8b8d433L, 0x7807c9a2L, 0x0f00f934L, 0x9609a88eL,
- 0xe10e9818L, 0x7f6a0dbbL, 0x086d3d2dL, 0x91646c97L, 0xe6635c01L,
- 0x6b6b51f4L, 0x1c6c6162L, 0x856530d8L, 0xf262004eL, 0x6c0695edL,
- 0x1b01a57bL, 0x8208f4c1L, 0xf50fc457L, 0x65b0d9c6L, 0x12b7e950L,
- 0x8bbeb8eaL, 0xfcb9887cL, 0x62dd1ddfL, 0x15da2d49L, 0x8cd37cf3L,
- 0xfbd44c65L, 0x4db26158L, 0x3ab551ceL, 0xa3bc0074L, 0xd4bb30e2L,
- 0x4adfa541L, 0x3dd895d7L, 0xa4d1c46dL, 0xd3d6f4fbL, 0x4369e96aL,
- 0x346ed9fcL, 0xad678846L, 0xda60b8d0L, 0x44042d73L, 0x33031de5L,
- 0xaa0a4c5fL, 0xdd0d7cc9L, 0x5005713cL, 0x270241aaL, 0xbe0b1010L,
- 0xc90c2086L, 0x5768b525L, 0x206f85b3L, 0xb966d409L, 0xce61e49fL,
- 0x5edef90eL, 0x29d9c998L, 0xb0d09822L, 0xc7d7a8b4L, 0x59b33d17L,
- 0x2eb40d81L, 0xb7bd5c3bL, 0xc0ba6cadL, 0xedb88320L, 0x9abfb3b6L,
- 0x03b6e20cL, 0x74b1d29aL, 0xead54739L, 0x9dd277afL, 0x04db2615L,
- 0x73dc1683L, 0xe3630b12L, 0x94643b84L, 0x0d6d6a3eL, 0x7a6a5aa8L,
- 0xe40ecf0bL, 0x9309ff9dL, 0x0a00ae27L, 0x7d079eb1L, 0xf00f9344L,
- 0x8708a3d2L, 0x1e01f268L, 0x6906c2feL, 0xf762575dL, 0x806567cbL,
- 0x196c3671L, 0x6e6b06e7L, 0xfed41b76L, 0x89d32be0L, 0x10da7a5aL,
- 0x67dd4accL, 0xf9b9df6fL, 0x8ebeeff9L, 0x17b7be43L, 0x60b08ed5L,
- 0xd6d6a3e8L, 0xa1d1937eL, 0x38d8c2c4L, 0x4fdff252L, 0xd1bb67f1L,
- 0xa6bc5767L, 0x3fb506ddL, 0x48b2364bL, 0xd80d2bdaL, 0xaf0a1b4cL,
- 0x36034af6L, 0x41047a60L, 0xdf60efc3L, 0xa867df55L, 0x316e8eefL,
- 0x4669be79L, 0xcb61b38cL, 0xbc66831aL, 0x256fd2a0L, 0x5268e236L,
- 0xcc0c7795L, 0xbb0b4703L, 0x220216b9L, 0x5505262fL, 0xc5ba3bbeL,
- 0xb2bd0b28L, 0x2bb45a92L, 0x5cb36a04L, 0xc2d7ffa7L, 0xb5d0cf31L,
- 0x2cd99e8bL, 0x5bdeae1dL, 0x9b64c2b0L, 0xec63f226L, 0x756aa39cL,
- 0x026d930aL, 0x9c0906a9L, 0xeb0e363fL, 0x72076785L, 0x05005713L,
- 0x95bf4a82L, 0xe2b87a14L, 0x7bb12baeL, 0x0cb61b38L, 0x92d28e9bL,
- 0xe5d5be0dL, 0x7cdcefb7L, 0x0bdbdf21L, 0x86d3d2d4L, 0xf1d4e242L,
- 0x68ddb3f8L, 0x1fda836eL, 0x81be16cdL, 0xf6b9265bL, 0x6fb077e1L,
- 0x18b74777L, 0x88085ae6L, 0xff0f6a70L, 0x66063bcaL, 0x11010b5cL,
- 0x8f659effL, 0xf862ae69L, 0x616bffd3L, 0x166ccf45L, 0xa00ae278L,
- 0xd70dd2eeL, 0x4e048354L, 0x3903b3c2L, 0xa7672661L, 0xd06016f7L,
- 0x4969474dL, 0x3e6e77dbL, 0xaed16a4aL, 0xd9d65adcL, 0x40df0b66L,
- 0x37d83bf0L, 0xa9bcae53L, 0xdebb9ec5L, 0x47b2cf7fL, 0x30b5ffe9L,
- 0xbdbdf21cL, 0xcabac28aL, 0x53b39330L, 0x24b4a3a6L, 0xbad03605L,
- 0xcdd70693L, 0x54de5729L, 0x23d967bfL, 0xb3667a2eL, 0xc4614ab8L,
- 0x5d681b02L, 0x2a6f2b94L, 0xb40bbe37L, 0xc30c8ea1L, 0x5a05df1bL,
- 0x2d02ef8dL
-};
diff --git a/gnu/usr.bin/gzip/zdiff b/gnu/usr.bin/gzip/zdiff
deleted file mode 100644
index 310a201..0000000
--- a/gnu/usr.bin/gzip/zdiff
+++ /dev/null
@@ -1,71 +0,0 @@
-#!/bin/sh
-# sh is buggy on RS/6000 AIX 3.2. Replace above line with #!/bin/ksh
-
-# Zcmp and zdiff are used to invoke the cmp or the diff pro-
-# gram on compressed files. All options specified are passed
-# directly to cmp or diff. If only 1 file is specified, then
-# the files compared are file1 and an uncompressed file1.gz.
-# If two files are specified, then they are uncompressed (if
-# necessary) and fed to cmp or diff. The exit status from cmp
-# or diff is preserved.
-#
-# $FreeBSD$
-
-prog=`echo $0 | sed 's|.*/||'`
-case "$prog" in
- *cmp) comp=${CMP-cmp} ;;
- *) comp=${DIFF-diff} ;;
-esac
-
-OPTIONS=
-FILES=
-for ARG
-do
- case "$ARG" in
- -*) OPTIONS="$OPTIONS $ARG";;
- *) if test -f "$ARG"; then
- FILES="$FILES $ARG"
- else
- echo "${prog}: $ARG not found or not a regular file"
- exit 1
- fi ;;
- esac
-done
-if test -z "$FILES"; then
- echo "Usage: $prog [${comp}_options] file [file]"
- exit 1
-fi
-set $FILES
-if test $# -eq 1; then
- FILE=`echo "$1" | sed 's/[-.][zZtga]*$//'`
- gzip -cd "$1" | $comp $OPTIONS - "$FILE"
- STAT="$?"
-
-elif test $# -eq 2; then
- case "$1" in
- *[-.]gz* | *[-.][zZ] | *.t[ga]z)
- case "$2" in
- *[-.]gz* | *[-.][zZ] | *.t[ga]z)
- F=`echo "$2" | sed 's|.*/||;s|[-.][zZtga]*||'`
- tmp=`mktemp -t "$F"`
- gzip -cdfq "$2" > "$tmp"
- gzip -cdfq "$1" | $comp $OPTIONS - "$tmp"
- STAT="$?"
- /bin/rm -f "$tmp";;
-
- *) gzip -cdfq "$1" | $comp $OPTIONS - "$2"
- STAT="$?";;
- esac;;
- *) case "$2" in
- *[-.]gz* | *[-.][zZ] | *.t[ga]z)
- gzip -cdfq "$2" | $comp $OPTIONS "$1" -
- STAT="$?";;
- *) $comp $OPTIONS "$1" "$2"
- STAT="$?";;
- esac;;
- esac
- exit "$STAT"
-else
- echo "Usage: $prog [${comp}_options] file [file]"
- exit 1
-fi
diff --git a/gnu/usr.bin/gzip/zdiff.1 b/gnu/usr.bin/gzip/zdiff.1
deleted file mode 100644
index ea3bf41..0000000
--- a/gnu/usr.bin/gzip/zdiff.1
+++ /dev/null
@@ -1,44 +0,0 @@
-.TH ZDIFF 1
-.SH NAME
-zcmp, zdiff \- compare compressed files
-.SH SYNOPSIS
-.B zcmp
-[ cmp_options ] file1
-[ file2 ]
-.br
-.B zdiff
-[ diff_options ] file1
-[ file2 ]
-.SH DESCRIPTION
-.I Zcmp
-and
-.I zdiff
-are used to invoke the
-.I cmp
-or the
-.I diff
-program on compressed files. All options specified are passed directly to
-.I cmp
-or
-.IR diff "."
-If only 1 file is specified, then the files compared are
-.I file1
-and an uncompressed
-.IR file1 ".gz."
-If two files are specified, then they are uncompressed if necessary and fed to
-.I cmp
-or
-.IR diff "."
-The exit status from
-.I cmp
-or
-.I diff
-is preserved.
-.SH "SEE ALSO"
-cmp(1), diff(1), zmore(1), zgrep(1), znew(1), zforce(1), gzip(1), gzexe(1)
-.SH BUGS
-Messages from the
-.I cmp
-or
-.I diff
-programs refer to temporary filenames instead of those specified.
diff --git a/gnu/usr.bin/gzip/zforce b/gnu/usr.bin/gzip/zforce
deleted file mode 100644
index 146db92..0000000
--- a/gnu/usr.bin/gzip/zforce
+++ /dev/null
@@ -1,38 +0,0 @@
-#!/bin/sh
-# zforce: force a gz extension on all gzip files so that gzip will not
-# compress them twice.
-#
-# This can be useful for files with names truncated after a file transfer.
-# foo is renamed to foo.gz
-#
-# $FreeBSD$
-
-x=`basename $0`
-if test $# = 0; then
- echo "force a '.gz' extension on all gzip files"
- echo usage: $x files...
- exit 1
-fi
-
-res=0
-for i do
- if test ! -f "$i" ; then
- echo ${x}: $i not a file
- res=1
- continue
- fi
- test `expr "$i" : '.*[.-]z$'` -eq 0 || continue
- test `expr "$i" : '.*[.-]gz$'` -eq 0 || continue
- test `expr "$i" : '.*[.]t[ag]z$'` -eq 0 || continue
-
- if gzip -lv < "$i" 2>/dev/null | grep '^defl' > /dev/null; then
-
- new="$i.gz"
- if mv "$i" "$new" 2>/dev/null; then
- echo $i -- replaced with $new
- continue
- fi
- res=1; echo ${x}: cannot rename $i to $new
- fi
-done
-exit $res
diff --git a/gnu/usr.bin/gzip/zforce.1 b/gnu/usr.bin/gzip/zforce.1
deleted file mode 100644
index 2bfb20d..0000000
--- a/gnu/usr.bin/gzip/zforce.1
+++ /dev/null
@@ -1,18 +0,0 @@
-.TH ZFORCE 1
-.SH NAME
-zforce \- force a '.gz' extension on all gzip files
-.SH SYNOPSIS
-.B zforce
-name ...
-.SH DESCRIPTION
-.I zforce
-forces a .gz extension on all
-.I gzip
-files so that
-.I gzip
-will not compress them twice.
-This can be useful for files with names truncated after a file transfer.
-For example, 12345678901 is renamed to 12345678901.gz.
-A file name such as foo.tgz is left intact.
-.SH "SEE ALSO"
-gzip(1), znew(1), zmore(1), zgrep(1), zdiff(1), gzexe(1)
diff --git a/gnu/usr.bin/gzip/zgrep b/gnu/usr.bin/gzip/zgrep
deleted file mode 100644
index fe5efb9..0000000
--- a/gnu/usr.bin/gzip/zgrep
+++ /dev/null
@@ -1,72 +0,0 @@
-#!/bin/sh
-
-# zgrep -- a wrapper around a grep program that decompresses files as needed
-# Adapted from a version sent by Charles Levert <charles@comm.polymtl.ca>
-#
-# $FreeBSD$
-
-prog=`echo $0 | sed 's|.*/||'`
-case "$prog" in
- *egrep) grep=${EGREP-egrep} ;;
- *fgrep) grep=${FGREP-fgrep} ;;
- *) grep=${GREP-grep} ;;
-esac
-A=
-fileno=0
-pat=""
-while test $# -ne 0; do
- case "$1" in
- -e | -f) opt="$opt $1"; shift; pat="$1"
- if test "$grep" = grep; then # grep is buggy with -e on SVR4
- grep=egrep
- fi;;
- -*) opt="$opt $1";;
- *) if test -z "$pat"; then
- pat="$1"
- else
- fileno=`expr $fileno + 1`
- eval A$fileno=\$1
- A="$A \"\$A$fileno\""
- fi
- ;;
- esac
- shift
-done
-
-if test -z "$pat"; then
- echo "grep through gzip files"
- echo "usage: $prog [grep_options] pattern [files]"
- exit 1
-fi
-
-list=0
-silent=0
-op=`echo "$opt" | sed -e 's/ //g' -e 's/-//g'`
-case "$op" in
- *l*) list=1
-esac
-case "$op" in
- *h*) silent=1
-esac
-
-if test $fileno -eq 0; then
- gzip -cdfq | $grep $opt "$pat"
- exit $?
-fi
-eval set "$A" # files in $1, $2 ...
-
-res=0
-for i do
- if test $list -eq 1; then
- gzip -cdfq "$i" | $grep $opt "$pat" > /dev/null && echo $i
- r=$?
- elif test $# -eq 1 -o $silent -eq 1; then
- gzip -cdfq "$i" | $grep $opt "$pat"
- r=$?
- else
- gzip -cdfq "$i" | $grep $opt "$pat" | sed "s|^|${i}:|"
- r=$?
- fi
- test "$r" -ne 0 && res="$r"
-done
-exit $res
diff --git a/gnu/usr.bin/gzip/zgrep.1 b/gnu/usr.bin/gzip/zgrep.1
deleted file mode 100644
index a52a88a..0000000
--- a/gnu/usr.bin/gzip/zgrep.1
+++ /dev/null
@@ -1,44 +0,0 @@
-.TH ZGREP 1
-.SH NAME
-zgrep \- search possibly compressed files for a regular expression
-.SH SYNOPSIS
-.B zgrep
-[ grep_options ]
-.BI [\ -e\ ] " pattern"
-.IR filename ".\|.\|."
-.SH DESCRIPTION
-.IR Zgrep
-is used to invoke the
-.I grep
-on compress'ed or gzip'ed files. All options specified are passed directly to
-.I grep.
-If no file is specified, then the standard input is decompressed
-if necessary and fed to grep.
-Otherwise the given files are uncompressed if necessary and fed to
-.I grep.
-.PP
-If
-.I zgrep
-is invoked as
-.I zegrep
-or
-.I zfgrep
-then
-.I egrep
-or
-.I fgrep
-is used instead of
-.I grep.
-If the GREP environment variable is set,
-.I zgrep
-uses it as the
-.I grep
-program to be invoked. For example:
-
- for sh: GREP=fgrep zgrep string files
- for csh: (setenv GREP fgrep; zgrep string files)
-.SH AUTHOR
-Charles Levert (charles@comm.polymtl.ca)
-.SH "SEE ALSO"
-grep(1), egrep(1), fgrep(1), zdiff(1), zmore(1), znew(1), zforce(1),
-gzip(1), gzexe(1)
diff --git a/gnu/usr.bin/gzip/zgrep.getopt b/gnu/usr.bin/gzip/zgrep.getopt
deleted file mode 100644
index e6811b7..0000000
--- a/gnu/usr.bin/gzip/zgrep.getopt
+++ /dev/null
@@ -1,94 +0,0 @@
-#!/bin/sh
-#
-# Copyright (c) April 1996 Wolfram Schneider <wosch@FreeBSD.org>. Berlin.
-# All rights reserved.
-#
-# Redistribution and use in source and binary forms, with or without
-# modification, are permitted provided that the following conditions
-# are met:
-# 1. Redistributions of source code must retain the above copyright
-# notice, this list of conditions and the following disclaimer.
-# 2. Redistributions in binary form must reproduce the above copyright
-# notice, this list of conditions and the following disclaimer in the
-# documentation and/or other materials provided with the distribution.
-#
-# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
-# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-# ARE DISCLAIMED. IN NO EVENT SHALL [your name] OR CONTRIBUTORS BE LIABLE
-# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
-# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
-# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
-# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
-# SUCH DAMAGE.
-#
-# zgrep - search possibly compressed files for a regular expression
-#
-# $FreeBSD$
-
-
-PATH=/bin:/usr/bin:$PATH; export PATH
-
-# grep variant
-case "$0" in
- *egrep) grep=${EGREP-egrep} ;;
- *fgrep) grep=${FGREP-fgrep} ;;
- *) grep=${GREP-grep} ;;
-esac
-
-gzip=gzip gzipopt="-cdfq" pattern= grepopt= files= line= header=
-
-# check options
-while getopts "0123456789A:B:CEFGVX:bce:f:hiLlnqsvwxy" option
-do
- case "$option" in
- e|f) pattern="-$option $OPTARG";; # -f file
- l|L) line=-$option; grepopt="$grepopt -$option";;
- h|q) header=-h; grepopt="$grepopt -$option";;
- # rest
- [0-9CEFGVbchiLlnqsvwxy]) grepopt="$grepopt -$option";;
- [ABXef]) grepopt="$grepopt -$option $OPTARG";;
- esac
-done
-shift $(($OPTIND - 1))
-
-# check pattern
-case X"$pattern" in
- X) case $# in
- 0) echo "usage: $0 [grep_options] pattern [files]"; exit 1;;
- *) pattern=$1; shift;;
- esac
-esac
-
-
-files="$@"
-# no shell loop neccessary for option -q or -h
-# and a single file or reading from stdin
-case "$header"X"$#" in
- -h*|-q*|X0|X1) $gzip $gzipopt -- $files | $grep $grepopt -- "$pattern"
- exit $?;;
-esac
-
-for f in $files
-do
- case "$line" in
- -l) if $gzip $gzipopt -- $f |
- $grep $grepopt -- "$pattern" >/dev/null
- then
- echo $f
- fi
- ;;
- -L) if $gzip $gzipopt -- $f |
- $grep $grepopt -- "$pattern" >/dev/null; then :
- else
- echo $f
- fi
- ;;
-
- *) $gzip $gzipopt -- $f | $grep $grepopt -- "$pattern" |
- sed "s%^%${f}:%"
- ;;
- esac
-done
diff --git a/gnu/usr.bin/gzip/zgrep.libz b/gnu/usr.bin/gzip/zgrep.libz
deleted file mode 100644
index 3001efa..0000000
--- a/gnu/usr.bin/gzip/zgrep.libz
+++ /dev/null
@@ -1,18 +0,0 @@
-#!/bin/sh
-# Copyright (c) Dec 1997 Wolfram Schneider <wosch@FreeBSD.org>. Berlin.
-# Public Domain.
-#
-# zgrep - Search possibly compressed files for a regular expression. This
-# version of zgrep(1) depend on a grep(1) linked with libz.
-#
-# $FreeBSD$
-
-PATH=/bin:/usr/bin; export PATH
-
-case "$0" in # grep variant
- *egrep) grep=${EGREP-egrep};;
- *fgrep) grep=${FGREP-fgrep};;
- *) grep=${GREP-grep};;
-esac
-
-exec ${grep} -Z "$@"
diff --git a/gnu/usr.bin/gzip/zip.c b/gnu/usr.bin/gzip/zip.c
deleted file mode 100644
index c5b985e..0000000
--- a/gnu/usr.bin/gzip/zip.c
+++ /dev/null
@@ -1,117 +0,0 @@
-/* zip.c -- compress files to the gzip or pkzip format
- * Copyright (C) 1992-1993 Jean-loup Gailly
- * This is free software; you can redistribute it and/or modify it under the
- * terms of the GNU General Public License, see the file COPYING.
- */
-
-#ifdef RCSID
-static char rcsid[] = "$FreeBSD$";
-#endif
-
-#include <ctype.h>
-#include <sys/types.h>
-
-#include "tailor.h"
-#include "gzip.h"
-#include "crypt.h"
-
-#ifdef HAVE_UNISTD_H
-# include <unistd.h>
-#endif
-#ifndef NO_FCNTL_H
-# include <fcntl.h>
-#endif
-
-local ulg crc; /* crc on uncompressed file data */
-long header_bytes; /* number of bytes in gzip header */
-
-/* ===========================================================================
- * Deflate in to out.
- * IN assertions: the input and output buffers are cleared.
- * The variables time_stamp and save_orig_name are initialized.
- */
-int zip(in, out)
- int in, out; /* input and output file descriptors */
-{
- uch flags = 0; /* general purpose bit flags */
- ush attr = 0; /* ascii/binary flag */
- ush deflate_flags = 0; /* pkzip -es, -en or -ex equivalent */
-
- ifd = in;
- ofd = out;
- outcnt = 0;
-
- /* Write the header to the gzip file. See algorithm.doc for the format */
-
- method = DEFLATED;
- put_byte(GZIP_MAGIC[0]); /* magic header */
- put_byte(GZIP_MAGIC[1]);
- put_byte(DEFLATED); /* compression method */
-
- if (save_orig_name) {
- flags |= ORIG_NAME;
- }
- put_byte(flags); /* general flags */
- put_long(time_stamp);
-
- /* Write deflated file to zip file */
- crc = updcrc(0, 0);
-
- bi_init(out);
- ct_init(&attr, &method);
- lm_init(level, &deflate_flags);
-
- put_byte((uch)deflate_flags); /* extra flags */
- put_byte(OS_CODE); /* OS identifier */
-
- if (save_orig_name) {
- char *p = basename(ifname); /* Don't save the directory part. */
- do {
- put_char(*p);
- } while (*p++);
- }
- header_bytes = (long)outcnt;
-
- (void)deflate();
-
-#if !defined(NO_SIZE_CHECK) && !defined(RECORD_IO)
- /* Check input size (but not in VMS -- variable record lengths mess it up)
- * and not on MSDOS -- diet in TSR mode reports an incorrect file size)
- */
- if (ifile_size != -1L && isize != (ulg)ifile_size) {
- Trace((stderr, " actual=%ld, read=%ld ", ifile_size, isize));
- fprintf(stderr, "%s: %s: file size changed while zipping\n",
- progname, ifname);
- }
-#endif
-
- /* Write the crc and uncompressed size */
- put_long(crc);
- put_long(isize);
- header_bytes += 2*sizeof(long);
-
- flush_outbuf();
- return OK;
-}
-
-
-/* ===========================================================================
- * Read a new buffer from the current input file, perform end-of-line
- * translation, and update the crc and input file size.
- * IN assertion: size >= 2 (for end-of-line translation)
- */
-int file_read(buf, size)
- char *buf;
- unsigned size;
-{
- unsigned len;
-
- Assert(insize == 0, "inbuf not empty");
-
- len = read(ifd, buf, size);
- if (len == (unsigned)(-1) || len == 0) return (int)len;
-
- crc = updcrc((uch*)buf, len);
- isize += (ulg)len;
- return (int)len;
-}
diff --git a/gnu/usr.bin/gzip/zmore b/gnu/usr.bin/gzip/zmore
deleted file mode 100644
index f5c2d5f..0000000
--- a/gnu/usr.bin/gzip/zmore
+++ /dev/null
@@ -1,52 +0,0 @@
-#!/bin/sh
-#
-# $FreeBSD$
-
-if test "`echo -n a`" = "-n a"; then
- # looks like a SysV system:
- n1=''; n2='\c'
-else
- n1='-n'; n2=''
-fi
-oldtty=`stty -g 2>/dev/null`
-if stty -cbreak 2>/dev/null; then
- cb='cbreak'; ncb='-cbreak'
-else
- # 'stty min 1' resets eof to ^a on both SunOS and SysV!
- cb='min 1 -icanon'; ncb='icanon eof ^d'
-fi
-if test $? -eq 0 -a -n "$oldtty"; then
- trap 'stty $oldtty 2>/dev/null; exit' 0 2 3 5 10 13 15
-else
- trap 'stty $ncb echo 2>/dev/null; exit' 0 2 3 5 10 13 15
-fi
-
-if test $# = 0; then
- if test -t 0; then
- echo usage: zmore files...
- else
- gzip -cdfq | eval ${PAGER-more}
- fi
-else
- FIRST=1
- for FILE
- do
- if test $FIRST -eq 0; then
- echo $n1 "--More--(Next file: $FILE)$n2"
- stty $cb -echo 2>/dev/null
- ANS=`dd bs=1 count=1 2>/dev/null`
- stty $ncb echo 2>/dev/null
- echo " "
- if test "$ANS" = 'e' -o "$ANS" = 'q'; then
- exit
- fi
- fi
- if test "$ANS" != 's'; then
- echo "------> $FILE <------"
- gzip -cdfq "$FILE" | eval ${PAGER-more}
- fi
- if test -t; then
- FIRST=0
- fi
- done
-fi
diff --git a/gnu/usr.bin/gzip/zmore.1 b/gnu/usr.bin/gzip/zmore.1
deleted file mode 100644
index b8157e5..0000000
--- a/gnu/usr.bin/gzip/zmore.1
+++ /dev/null
@@ -1,147 +0,0 @@
-.\" $FreeBSD$
-.\"
-.TH ZMORE 1
-.SH NAME
-zmore \- file perusal filter for crt viewing of compressed text
-.SH SYNOPSIS
-.B zmore
-[ name ... ]
-.SH DESCRIPTION
-.I Zmore
-is a filter which allows examination of compressed or plain text files
-one screenful at a time on a soft-copy terminal.
-.I zmore
-works on files compressed with
-.I compress, pack
-or
-.I gzip,
-and also on uncompressed files.
-If a file does not exist,
-.I zmore
-looks for a file of the same name with the addition of a .gz, .z or .Z suffix.
-.PP
-.I Zmore
-normally pauses after each screenful, printing --More--
-at the bottom of the screen.
-If the user then types a carriage return, one more line is displayed.
-If the user hits a space,
-another screenful is displayed. Other possibilities are enumerated later.
-.PP
-.I Zmore
-looks in the file
-.I /usr/share/misc/termcap
-to determine terminal characteristics,
-and to determine the default window size.
-On a terminal capable of displaying 24 lines,
-the default window size is 22 lines.
-To use a pager other than the default
-.I more,
-set environment variable PAGER to the name of the desired program, such as
-.I less.
-.PP
-Other sequences which may be typed when
-.I zmore
-pauses, and their effects, are as follows (\fIi\fP is an optional integer
-argument, defaulting to 1) :
-.PP
-.IP \fIi\|\fP<space>
-display
-.I i
-more lines, (or another screenful if no argument is given)
-.PP
-.IP ^D
-display 11 more lines (a ``scroll'').
-If
-.I i
-is given, then the scroll size is set to \fIi\|\fP.
-.PP
-.IP d
-same as ^D (control-D)
-.PP
-.IP \fIi\|\fPz
-same as typing a space except that \fIi\|\fP, if present, becomes the new
-window size. Note that the window size reverts back to the default at the
-end of the current file.
-.PP
-.IP \fIi\|\fPs
-skip \fIi\|\fP lines and print a screenful of lines
-.PP
-.IP \fIi\|\fPf
-skip \fIi\fP screenfuls and print a screenful of lines
-.PP
-.IP "q or Q"
-quit reading the current file; go on to the next (if any)
-.PP
-.IP "e or q"
-When the prompt --More--(Next file:
-.IR file )
-is printed, this command causes zmore to exit.
-.PP
-.IP s
-When the prompt --More--(Next file:
-.IR file )
-is printed, this command causes zmore to skip the next file and continue.
-.PP
-.IP =
-Display the current line number.
-.PP
-.IP \fIi\|\fP/expr
-search for the \fIi\|\fP-th occurrence of the regular expression \fIexpr.\fP
-If the pattern is not found,
-.I zmore
-goes on to the next file (if any).
-Otherwise, a screenful is displayed, starting two lines before the place
-where the expression was found.
-The user's erase and kill characters may be used to edit the regular
-expression.
-Erasing back past the first column cancels the search command.
-.PP
-.IP \fIi\|\fPn
-search for the \fIi\|\fP-th occurrence of the last regular expression entered.
-.PP
-.IP !command
-invoke a shell with \fIcommand\|\fP.
-The character `!' in "command" are replaced with the
-previous shell command. The sequence "\\!" is replaced by "!".
-.PP
-.IP ":q or :Q"
-quit reading the current file; go on to the next (if any)
-(same as q or Q).
-.PP
-.IP .
-(dot) repeat the previous command.
-.PP
-The commands take effect immediately, i.e., it is not necessary to
-type a carriage return.
-Up to the time when the command character itself is given,
-the user may hit the line kill character to cancel the numerical
-argument being formed.
-In addition, the user may hit the erase character to redisplay the
---More-- message.
-.PP
-At any time when output is being sent to the terminal, the user can
-hit the quit key (normally control\-\\).
-.I Zmore
-will stop sending output, and will display the usual --More--
-prompt.
-The user may then enter one of the above commands in the normal manner.
-Unfortunately, some output is lost when this is done, due to the
-fact that any characters waiting in the terminal's output queue
-are flushed when the quit signal occurs.
-.PP
-The terminal is set to
-.I noecho
-mode by this program so that the output can be continuous.
-What you type will thus not show on your terminal, except for the / and !
-commands.
-.PP
-If the standard output is not a teletype, then
-.I zmore
-acts just like
-.I zcat,
-except that a header is printed before each file.
-.SH FILES
-.DT
-/etc/termcap Terminal data base
-.SH "SEE ALSO"
-more(1), gzip(1), zdiff(1), zgrep(1), znew(1), zforce(1), gzexe(1)
diff --git a/gnu/usr.bin/gzip/znew b/gnu/usr.bin/gzip/znew
deleted file mode 100644
index 52b0ae9..0000000
--- a/gnu/usr.bin/gzip/znew
+++ /dev/null
@@ -1,150 +0,0 @@
-#!/bin/sh
-#
-# $FreeBSD$
-
-check=0
-pipe=0
-opt=
-files=
-keep=0
-res=0
-old=0
-new=0
-block=1024
-# block is the disk block size (best guess, need not be exact)
-
-warn="(does not preserve modes and timestamp)"
-tmp=`mktemp -d -t znew`
-if test -z "$tmp"; then
- echo znew: could not create temporary directory
- exit 1
-fi
-echo hi > $tmp/1
-echo hi > $tmp/2
-if test -z "`(${CPMOD-cpmod} $tmp/1 $tmp/2) 2>&1`"; then
- cpmod=${CPMOD-cpmod}
- warn=""
-fi
-
-if test -z "$cpmod" && ${TOUCH-touch} -r $tmp/1 $tmp/2 2>/dev/null; then
- cpmod="${TOUCH-touch}"
- cpmodarg="-r"
- warn="(does not preserve file modes)"
-fi
-
-# check if GZIP env. variable uses -S or --suffix
-gzip -q $tmp/1
-ext=`echo $tmp/1* | sed "s|$tmp/1||"`
-rm -rf $tmp
-if test -z "$ext"; then
- echo znew: error determining gzip extension
- exit 1
-fi
-if test "$ext" = ".Z"; then
- echo znew: cannot use .Z as gzip extension.
- exit 1
-fi
-
-for arg
-do
- case "$arg" in
- -*) opt="$opt $arg"; shift;;
- *) break;;
- esac
-done
-
-if test $# -eq 0; then
- echo "recompress .Z files into $ext (gzip) files"
- echo usage: `echo $0 | sed 's,^.*/,,'` "[-tv9KP]" file.Z...
- echo " -t tests the new files before deleting originals"
- echo " -v be verbose"
- echo " -9 use the slowest compression method (optimal compression)"
- echo " -K keep a .Z file when it is smaller than the $ext file"
- echo " -P use pipes for the conversion $warn"
- exit 1
-fi
-
-opt=`echo "$opt" | sed -e 's/ //g' -e 's/-//g'`
-case "$opt" in
- *t*) check=1; opt=`echo "$opt" | sed 's/t//g'`
-esac
-case "$opt" in
- *K*) keep=1; opt=`echo "$opt" | sed 's/K//g'`
-esac
-case "$opt" in
- *P*) pipe=1; opt=`echo "$opt" | sed 's/P//g'`
-esac
-if test -n "$opt"; then
- opt="-$opt"
-fi
-
-for i do
- n=`echo $i | sed 's/.Z$//'`
- if test ! -f "$n.Z" ; then
- echo $n.Z not found
- res=1; continue
- fi
- test $keep -eq 1 && old=`wc -c < "$n.Z"`
- if test $pipe -eq 1; then
- if gzip -d < "$n.Z" | gzip $opt > "$n$ext"; then
- # Copy file attributes from old file to new one, if possible.
- test -n "$cpmod" && $cpmod $cpmodarg "$n.Z" "$n$ext" 2> /dev/null
- else
- echo error while recompressing $n.Z
- res=1; continue
- fi
- else
- if test $check -eq 1; then
- if cp -p "$n.Z" "$n.$$" 2> /dev/null || cp "$n.Z" "$n.$$"; then
- :
- else
- echo cannot backup "$n.Z"
- res=1; continue
- fi
- fi
- if gzip -d "$n.Z"; then
- :
- else
- test $check -eq 1 && mv "$n.$$" "$n.Z"
- echo error while uncompressing $n.Z
- res=1; continue
- fi
- if gzip $opt "$n"; then
- :
- else
- if test $check -eq 1; then
- mv "$n.$$" "$n.Z" && rm -f "$n"
- echo error while recompressing $n
- else
- # compress $n (might be dangerous if disk full)
- echo error while recompressing $n, left uncompressed
- fi
- res=1; continue
- fi
- fi
- test $keep -eq 1 && new=`wc -c < "$n$ext"`
- if test $keep -eq 1 -a `expr \( $old + $block - 1 \) / $block` -lt \
- `expr \( $new + $block - 1 \) / $block`; then
- if test $pipe -eq 1; then
- rm -f "$n$ext"
- elif test $check -eq 1; then
- mv "$n.$$" "$n.Z" && rm -f "$n$ext"
- else
- gzip -d "$n$ext" && compress "$n" && rm -f "$n$ext"
- fi
- echo "$n.Z smaller than $n$ext -- unchanged"
-
- elif test $check -eq 1; then
- if gzip -t "$n$ext" ; then
- rm -f "$n.$$" "$n.Z"
- else
- test $pipe -eq 0 && mv "$n.$$" "$n.Z"
- rm -f "$n$ext"
- echo error while testing $n$ext, $n.Z unchanged
- res=1; continue
- fi
- elif test $pipe -eq 1; then
- rm -f "$n.Z"
- fi
-done
-exit $res
diff --git a/gnu/usr.bin/gzip/znew.1 b/gnu/usr.bin/gzip/znew.1
deleted file mode 100644
index 5cfb472..0000000
--- a/gnu/usr.bin/gzip/znew.1
+++ /dev/null
@@ -1,39 +0,0 @@
-.TH ZNEW 1
-.SH NAME
-znew \- recompress .Z files to .gz files
-.SH SYNOPSIS
-.B znew
-[ -ftv9PK] [ name.Z ... ]
-.SH DESCRIPTION
-.I Znew
-recompresses files from .Z (compress) format to .gz (gzip) format.
-If you want to recompress a file already in gzip format, rename the file
-to force a .Z extension then apply znew.
-.SH OPTIONS
-.TP
-.B \-f
-Force recompression from .Z to .gz format even if a .gz file already exists.
-.TP
-.B \-t
-Tests the new files before deleting originals.
-.TP
-.B \-v
-Verbose. Display the name and percentage reduction for each file compressed.
-.TP
-.B \-9
-Use the slowest compression method (optimal compression).
-.TP
-.B \-P
-Use pipes for the conversion to reduce disk space usage.
-.TP
-.B \-K
-Keep a .Z file when it is smaller than the .gz file
-.SH "SEE ALSO"
-gzip(1), zmore(1), zdiff(1), zgrep(1), zforce(1), gzexe(1), compress(1)
-.SH BUGS
-.I Znew
-does not maintain the time stamp with the -P option if
-.I cpmod(1)
-is not available and
-.I touch(1)
-does not support the -r option.
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