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CD ROM Paradise Collection 4 1995 Nov.iso
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unzip51.zip
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BUGS
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1994-02-02
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4KB
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68 lines
Bogus bugs (not our fault!):
---------------------------
By far THE BIGGEST source of bug reports to Info-ZIP/zip-bugs is the
incorrect transfer of zipfiles (or of the UnZip executable itself).
ALWAYS TRANSFER IN BINARY MODE! This includes ftp transfers and *both*
ends of a Kermit connection ("set file type binary"). If your copy
isn't exactly the same size as the original, you made a mistake.
Another common source of errors such as "compression method 8 not sup-
ported" is the existence of an old version of UnZip somewhere in your
path. Make sure you're using the version you think you're using; give
the full path explicitly if necessary. Executing "unzip" without any
options will print a help screen, at the top of which is the UnZip
version number and release date.
Bugs (real and/or imagined):
---------------------------
- DEC Ultrix: on long zipfiles, unzip will sometimes fail (bad CRC, not always
reproducible); this is apparently due either to a hardware bug (cache mem)
or OS bug (page faults?) [Igor, Jean-loup, bottom of BUGS.long]
- Pyramid: USE_FWRITE causes CRC errors (???) [Kevin]
- possible problems with unzip -a on binary file in compact-model-MSDOS-Zip-
created archive? (showed up with MSDOS zip 1.9l and various unzips; inflate
crashes(?)) [Piet]
- funzip/more/decryption/no-echo bug: race condition(?) causes terminal
to be "reset" to no-echo state
- directory dates/times (special Unix perms?) not restored
- Macintosh (100200), Atari (020000) external file attributes not interpreted
correctly (both unzip and zipinfo)
- pkbug error: zipfile with incorrect csize and/or ucsize--check for end of
compressed (csize) data in uncompression routines:
unimplod.c: while ((!zipeof) && ((outpos + outcnt) < ucsize)) {
unreduce.c: while (((outpos + outcnt) < ucsize) && (!zipeof)) {
[James Birdsall, Mark, bottom of BUGS.long]
- OS/2: directory EAs not restored if directory exists [Kai Uwe, KG27515@uark]
(subsequent note: no way to determine which EAs are newer ==> cannot
restore without user input)
- MS-DOS: Borland executables don't allow other than 80-column, 25/43/50-line
screen modes (Borland bug) [Michael Stillwell]
Features (possible and/or definite):
-----------------------------------
- put man pages in more "proper" nroff format
- ignore case for internal filename match on non-Unix systems, unless file-
specs enclosed in single quotes
- save/extract Unix mtime/ctime/atime/UID/GID info (Unix extra field)
- modify to decompress input stream if part of a pipe, but continue using
central directory if not (BIG job!)--extended local header capability
- add zipinfo option(s) to sort alphabetically, by date/time, in reverse, etc.
- add "near" to global vars [Steve Salisbury, 92.4.21]
- modify set_file_time routines to share common code (macro?)
- when listing filenames, use '?' for non-printables? [Thomas Wolff, 92.6.1]
- add zipinfo "in-depth" option? (check local vs. central filenames, etc.)
- create zipcat program to concatenate zipfiles
- assembly-language routines?
- VM/CMS version (Walter Moore, Phil Howard, Chua Kong Sian, others)
- add -oo option (overwrite and override)? no user queries (if bad password,
skip file; if disk full, take default action; if VMS special on non-VMS,
unpack anyway; etc.)
- add -Q[Q[Q]] option (quiet mode on comments, cautions, warnings and errors)?
forget -oo, or make synonym? Default level -Q?
- add OS/2 .INF format helpfiles for UnZip and ZipInfo?