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227 lines
8.9 KiB
Plaintext
227 lines
8.9 KiB
Plaintext
================================
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For UnZip 6.1/who knows:
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================================
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o add extraction support for other compression algorithms used by new
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PKZIP, WinZIP, 7-Zip versions
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- LZMA, compression type 14 (most important, because of its efficiency)
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- PPMd, compression type 98 (maybe, less important)
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- WavPacked, compression type 97 (maybe, less important)
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LZMA is first-level priority for 6.1, other formats may be taken
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into consideration
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o add support for reading AES encrypted archives
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- WinZIP format (priority 1)
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- PKZip format (priority 2)
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top level item for 6.1
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o add multi-part zipfile handling
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major feature for 6.x!
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could happen for 6.1
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o better support for multilingual uses and different codepages;
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support unicode (UTF-8 coded) filenames and comment texts
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a requested feature getting more and more important,
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- partially done for the Windows port in 6.0
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(support restricted for chars of the current system codepage)
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- partially done (beta state) for Unix
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(requires native codepage to be UTF-8)
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o complete support for UTF-8 coded entry names (and comments)
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- add new "win32_wide" port to extend unicode support on Windows
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beyond the restrictions of the current (ANSI) system codepage
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- revise/extend the WinDLL interface to allow passing of "wide"
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string argument data
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- add simple built-in character translation between UTF-8 and the
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old (ISO-8851-1 / IBM850) code pages to allow old systems without
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standard UTF-8 support to read UTF-8 encoded archives.
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- extend the built-in translation tables to support other language
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regions besides "Western_Latin1" (e.g. Russian-kyrillic, Japanese,
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Chinese)
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- streamline the multilingual codepage and UTF-8 support for the UNIX
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port (standard codepage translation facility?, like WideChar<->AnsiCP
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translation functions under MS Windows)
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should happen for 6.1
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(there is internal alpha-state code for better "wide" support on
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Windows available at the time of the 6.0 release)
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o revise the "extended charcodes" handling in decryption password to
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support UTF-8 encoding on Unicode-aware systems where the "native"
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character coding is NOT UTF-8 (e.g. Windows).
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o revise the command line interface for more compatibility with Zip'
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command parser
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- implement the versatile command parser from Zip 3.0.
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- add "long option" definitions for all existing options; revise
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the UnZip user manual to document the long-option alternatives.
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- add support for reading the "process these entries" and the "skip
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these entries" pattern lists from a file (or from separate files ?).
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- add a (long) option to switch off UnZip's internal pattern matching
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on filename arguments.
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probably in 6.1,
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(first prototype of the revised command parser was available at the
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time of the 6.0 release)
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o add command line options for miscellaneous features requested by users
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and/or development team members:
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- display the Info-ZIP software license
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- more fine-tuning for file attributes set/restored at extraction, like:
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set/clear archive attribute on DOS/OS2/WIN32;
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apply/skip standard or user-defined umask filter on UNIX (& Unix-alike)
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- additional time-stamp related processing filters
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- more listing display modifications
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- overriding the default date-time display style
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- ...
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All these options are of minor importance and/or would collide with
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existing "one-character" options. The current UnZip maintainer does not
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want to reserve any of the few not-yet-occupied short option characters.
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for one of these features. So, any implementation effort for items
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of this feature wish-list has to be delayed until the "long option"
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support of the revised command line parser becomes available.
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some option may get implemented in 6.1
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o support for
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and/or development team members:
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o add new low-level, binary API; rewrite "normal" (command-line) UnZip
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to use it
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maybe soon (maybe 6.1)
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o MSDOS/WIN32/others: detection of "reserved" names (= names of character
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devices, or system extensions that look like a characters device driver)
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at runtime; with the goal of emitting "meaningful" error messages and/or
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rename queries.
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(Currently, these reserved names are catched as "non-deletable files".
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On MSDOS and WIN32, when the RTL stat() function allows to identify
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character devices, the "reserved" names are automatically prefixed with
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an underscore.)
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o redesign "file exists -- is newer/older -- overwrite/skip/rename"
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logic in extract.c and the corresponding system specific mapname()
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services; to prevent superfluous decryption key prompts for entry
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that will be skipped, later.
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o rewrite to use fread/fseek/etc. [eventually: test
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write(bytes) vs. fwrite(words), especially on Crays/Alphas]
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soon (probably in conjunction with multi-part handling)
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o incorporate new backfill version of inflate()
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wait for zlib version
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o check NEXTBYTE for EOF in crypt.c, funzip.c and explode.c, too
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whenever
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o add option to force completely non-interactive operation (no queries
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for overwrite/rename, password, etc.); also allow some sort of non-
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interactive password provision? (file? command-line? env. variable?)
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someday?
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o add testing of extra fields (if have CRC)
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later
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o rewrite to allow use as a filter
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way, way later...
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o add Unix hard-link support?
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way, way later...
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o add ".ini" file support as a (more elaborate) alternative to the presently
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supported preconfiguring abilities via special environment variables
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(UNZIP on many systems...)?
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way, way later (if ever)...
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o add option to search zipfile contents for a string and print the
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results? ("zipgrep" option--e.g., unzip -g or unzip -S) (easy for
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fixed strings, hard for wildcards/true regex's)
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way, way later, if at all...probably use libregex
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o add -y "display symlinks" option to zipinfo? various sorting options?
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(-St date/time, -Sn name)?
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who knows
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o add "in-depth" option to zipinfo? (check local headers against
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central, etc.)--make it a better debugging tool (or just create
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zipfix)
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who knows (zip -F, -FF already exist)
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Some maintenance or OS specific topics for 6.0 release:
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* add "unix-style-path -> partitioned-dataset filename" conversion
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to MVS port
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* should we add support for (null) entry names (empty entry name field), to
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conform to the PKWARE specification?
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=======================================
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Requested features:
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- extract or exclude on basis of UID [Armin Bub, Armin.Bub@bk.bosch.de, 970904]
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=======================================
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o miscellaneous little stuff: whenever
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--------------------------
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- change DOS -f/-u stuff to use DOS API for getting filetimes, not stat()
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- add (-N?) option to lose all user input and/or switch to "(*input)()"
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function, replaceable by UzpAltMain() param
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- add -@ option to read from stdin (zip) or from file (PKZIP)? (go32 built-in)
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- add -oo option to overwrite OS/2 and DOS system and hidden files, too
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- add option to compute MD5 checksum on files and/or on entire zipfile?
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- decide whether to use WinGUI "skipping" diagnostics in extract.c
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- combine "y/n/A/N" query/response stuff into unified section with query
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function(s) (InputFn?)
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- disable ^V code in remaining mapname() routines
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- change filename-matching logic so case-insensitive if case-sensitive fails?
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- allow multiple dir creation with -d option? [Bob Maynard]
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- use gcc -pg, gprof to do profiling on unzip
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- Doug Patriarche (doug.patriarche.bvdhp01@nt.com) Northern Telecom Canada Ltd.
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"I need to do a port of zip/unzip for Wind River Systems' VxWorks OS"
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[GRR: 15 March 95 -> "early June"]
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Features from old BUGS file (mostly duplicates of other entries above):
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- ignore case for internal filename match on non-Unix systems, unless file-
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specs enclosed in single quotes
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- modify to decompress input stream if part of a pipe, but continue using
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central directory if not (BIG job!)--extended local header capability
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- add zipinfo option(s) to sort alphabetically, by date/time, in reverse, etc.
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- when listing filenames, use '?' for non-printables? [Thomas Wolff, 92.6.1]
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- add zipinfo "in-depth" option? (check local vs. central filenames, etc.)
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- create zipcat program to concatenate zipfiles
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- add -oo option (overwrite and override)? no user queries (if bad password,
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skip file; if disk full, take default action; if VMS special on non-VMS,
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unpack anyway; etc.)
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- add -Q[Q[Q]] option (quiet mode on comments, cautions, warnings and errors)?
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forget -oo, or make synonym? Default level -Q?
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