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DWC
Archive Utility
Release A5.01
5/31/88
by
Dean W. Cooper
(C) Copyright 1986,1987,1988 by Dean W. Cooper
ALL RIGHTS RESERVED
NOTE: The source code to the compressor/decompressor modules of DWC,
as of this release, is now considered Proprietary Information
and will no longer be distributed. However, the executable
version of DWC, and the source code that is not part of the
compressor/decompressor modules, is still available free of
charge for both private and commercial use and may be
distributed provided NO fee is charged. Updates are available
by sending a SASE with a floppy disk to: Dean W. Cooper,
18028 Cottage Garden Dr #103, Germantown, MD 20874
Contributions (of any kind) to help improve this program are welcomed.
INTRODUCTION:
------------
DWC is an archive utility patterned after ARC, (C) Copyright System
Enhancement Assoc., that has many improvements and added features. Please
note, however, that DWC is Not file compatible with ARC and cannot be used
to add or extract ARC files.
Basic improvements include compression speed and size, and error
handling. Also, DWC includes all of ARC's commands and options (except
the run command) and adds many new ones along with small improvements
over the old ones. These are detailed below.
DWC attempts to emulate ARC's interface and functionality so Users
do not need to learn a new style. New features are added as a super-set
to ARC's features.
An archive utility is a program that lets a User take a set of files,
compresses them, and put them together into one DOS file. This DOS file
is called the archive. DWC is an archive utility program that can be used
to add files to an archive, extract files from an archive, list the files
that are contained in the archive, and to delete one or more files in the
archive.
USAGE:
-----
When DWC is run with No arguments, the following usage information is
displayed:
DWC <command>[[option]...][g<passwd>] <archive>[/s] [<file>[/s] ...]
Commands: Options:
a Add files to archive <digits> Max number of entries in directory
m Move files to archive s Suppress compression of file
u Update files to archive b Retain backup copy of archive
f Freshen files to archive n Suppress normal program messages
d Delete files in archive w,! Suppress (w)arnings, or all (!) messages
e,x Extract files from archive q Query on each add or extract
p Extract to standard output o Only extract files with newer dates
l List files in the archive i Inquire comment field on each add
v Verbose list of files z,y Optimize for size (z), or speed (y)
t Test integrity of files = Make archive date equal newest file
c Convert files in archive j Merge archives on add
h Name header file of archive r Record directory on add, use on extract
i,k Edit comment field of files g Encrypt on add, decrypt on extract
= Make date equal newest file - Negate the following option
/s Extend wildcard expansion to all sub-directories
DWC can be run three ways as follows:
1) DWC by itself (displays above usage list)
2) DWC followed by,
- An archive file name (implies default command, usually list 'l')
3) DWC followed by,
- One of the commands
and None, one, or more of the options
- An archive file name
- An optional list of files
Normal DOS-style wildcards are allowed in both the archive's name and
all file names in the file list. If wildcards are given in the archive's
name and more than one archive is matched, then the given command is
simply run once for each archive that matches.
All commands work with the specified list of files. This list of files
can be only one of two things: either a list of DOS files to add to the
archive, or a list of one or more files in the archive to operate on.
If no files are given in the file list, then "*.*" is assumed.
ADD COMMANDS:
------------
These are commands that "add" DOS files to the archive. They are:
a Add - Adds all files in file list to the archive.
m Move - Adds all files in file list to the archive and then
deletes them from DOS.
u Update - Adds only the files in the file list that are not already
in the archive or that have a more recent date then the
ones in the archive.
f Freshen - Adds only the files in the file list that are already
in the archive and have a more recent date then the ones
in the archive.
If "*.*" is given for the the file list (or no files are listed), then
all files in the current directory are used for the file list. For
instance:
DWC a test
Adds all files in the current directory to the archive "test.dwc"
Paths may also be specified in order to add files from other drives
and directories:
DWC u test a:*.doc \include\sys\*.h *.c
This adds all "doc" files from the current directory on drive A, all
"h" files from the directory "\include\sys" on the current drive, and
all "c" files in the current directory to the archive test, except for
those files that are older than files already in the archive.
Adding a file to an archive that already has a file in it with the
same name, will cause the file in the archive to be replaced. An
archive cannot contain two files in it with the same name. Also,
the archive (and its backup) that is being added to is always auto-
matically eliminated from the file list and cannot be added to itself.
ADD VARIATION COMMANDS:
----------------------
These commands are variations on the "add" command:
d Delete - (Negative Add) Deletes all files in the file list from
the archive.
c Convert - (Internal Add) Temporarily extracts all files in the
file list and then re-adds them.
i,k Comment - (Attribute Add) Edits the comment field of all files in
the file list in the archive.
A file list must be given for the delete command as, otherwise, a null
file list would cause all files to be deleted.
The convert command can be used to convert the files from one storage
method to another. Files can be added during the day in un-compressed
form and then later converted to compressed form. Or they could be
converted from un-encrypted form to encrypted form (note that one cannot
convert from encryption using one password to encryption using another
password.)
The comment command is used to add a short comment to each file stored
in the archive. The comments are displayed when the archive is listed
with the 'l' command.
EXTRACT COMMANDS:
----------------
These are commands that extract files from the archive:
e,x Extract - Extract all files in the list from the archive to DOS
files.
p Print - Extract all files in the list from the archive to
standard output (the screen). This can be re-directed
to the printer.
t Test - Extract all files in the list from the archive to the
null output (nowhere) in order to test the integrity
of the files.
To extract all the files in an archive, just enter:
DWC e test
This will extract all files in the archive "test". To extract just
some of the files in an archive, just list them:
DWC t test *.h *.c
This will test all the "h" and "c" files in the archive "test".
The test command will uncompress the files, checking for valid CRC's
and other integrity checks.
The extract command can include directory paths to specify where to
put the extracted files. For example:
DWC x test \some\where\*.txt fred* b:\*.txt sam*
This will extract all "txt" files and all "fred" files to the directory
"\some\where", and it will extract all "txt" files (a second time) and
all "sam" files to the root directory of drive B. Note, that the
directory used on one file is remembered until it is overridden by
another directory.
If you extract a file and the file already exists in DOS, then you
will be warned and asked if you want to overwrite the existing file.
The warning message tells if the existing file is older, newer, or the
same date as the file being extracted. If warnings are suppressed, then
it is assumed you want to overwrite the file. However, if there is
any error in extracting the file, then you will be prompted if you
really want to overwrite the file with a corrupted one. Thus, one
does not need to worry about accidentally overwriting a file.
LIST COMMANDS:
-------------
These are commands that list the files in the archive:
l List - Lists all files in the file list along with their comments.
v Verbose - A more detailed (verbose) list of the files in the file
list.
The list command displays as follows:
Name Length Date Comment
============ ======== ========= ============================================
CHKDSK.COM 6468 19 Oct 83 System command to check disk integrity
DEBUG.COM 12223 19 Oct 83 Machine language debuger
DISKCOPY.COM 1703 30 Jan 84 Makes an image copy of one disk to another
EDLIN.COM 8080 19 Oct 83 DOS line oriented editor
==== ========
Total 4 28474
"Length" is the size of the file when un-compressed, and "Date" is
the date that DOS had for the file when it was added to the archive.
"Comment" is the User added comment field for each file.
Please note, that the "r" option will make the list command display
the directory path saved with each file instead of the comment field.
The verbose command displays as follows:
Last modified: 18 Dec 86 8:26a
Name Length Stowage SF Size now Date Time Pass
============ ======== ======== ==== ======== ========= ====== ====
CHKDSK.COM 6468 Crunched 17% 5419 19 Oct 83 7:51p --
DEBUG.COM 12223 Crunched 13% 10680 19 Oct 83 7:52p Pass
DISKCOPY.COM 1703 -- 0% 1703 30 Jan 84 12:59a --
EDLIN.COM 8080 Crunched 52% 3912 19 Oct 83 7:51p --
==== ======== ==== ========
Total 4 28474 24% 21714
The verbose list includes the method of storage ("Stowage") which is
either:
-- No compression
Crunched Lempel-Ziv compression
The stowage factor, "SF", is the percent the file was compressed.
"Size now" is the size of the file in the archive. "Pass" is either
"--" for not encrypted, or "Pass" for encrypted. The date given for
"Last modified" is the date the archive was last added to or modified.
ATTRIBUTE COMMANDS:
------------------
These are commands that modify an attribute of the archive:
h Header - Names one file in the archive to be the "header" file
of the archive. The header file is extracted and displayed
before a listing of the archive. There is no restriction
to the size or contents of this file.
= Equal - Resets the date of the archive to equal the newest file
in the archive if No file is specified in the file list.
Or resets the date to equal the date of one file given
in the file list.
ADD OPTIONS:
-----------
These are options that modify the "add" commands:
s Suppress - Suppresses compression of files when they are added. Just
an image copy will be added. (Does not apply to the delete
or comment commands.)
b Backup - Creates a backup copy of the archive before it is changed
by adding to it.
i Inquire - Prompts User for comment fields for each file as they are
added. (Does not apply to the delete command.)
z Size - Optimizes compression of files for smaller size when they
are added. The default compression technique is optimized
for speed and requires less memory. (Does not apply to
the delete or comment commands.)
y Speed - Uses the compression algorithm that is designed for speed
of compression as compared to size. This algorithm
requires less memory then the "size" option. (Does not
apply to the delete or comment commands.)
= Equal - Makes the date of the new archive equal the date of the
newest file in the archive.
j Merge - When a file in the file list is an archive, it is merged
into the new archive instead of being added like a normal
file. (Does not apply to delete, comment, or convert.)
EXTRACT OPTIONS:
---------------
These are options that modify the "extract" commands:
o Only - Causes only the files with more recent dates than the
DOS files they would overwrite to be extracted. The
warning that a file is going to be overwritten, is
automatically suppressed.
BOTH ADD & EXTRACT OPTIONS:
--------------------------
These are options that modify both the add and extract commands:
q Query - Queries the User for confirmation before each add or
extract is performed. (Applies to the print command
but not the comment command.)
r Record - Records what DOS directory the file was in when added
to the archive and then extracts the file to that
directory when extracting unless overridden. Can be
used with the list command to display the directories
recorded for each file. (Does not apply to delete,
comment, or convert.)
g Garble - This option must be the last option listed. The
characters following it are interpreted as a password.
Using this password, files are encrypted when added
and decrypted when extracted. If a file is encrypted
and one attempts to extract it without supplying a
password, he will be warned.
n Notes - Normal screen output is suppressed by sending it to the
null output.
w Warnings - Warning messages are suppressed such as the warning that
an extracted file will overwrite an existing DOS file.
Also suppressed is the warning that the directory one is
extracting to does not exist. In this case, the
directory is automatically created.
! All - All messages will be suppressed including notes, warnings
and errors. This is useful in a batch file that can
check for any error codes returned by DWC. The only
things that can't be suppressed are the query option, the
inquire option/command, and the list commands.
Examples:
DWC agxyz test *.txt
This will add all "txt" files in the current directory to the archive
"test". They will be encrypted using the password "xyz" (case insensitive).
The attribute that the files were encrypted is recorded, but the password
is not saved. Thus, care must be taken using this option, as it is
unlikely that the file could be recovered if the password was lost. To
extract these files, just type:
DWC egxyz test
The record option is a good way to backup an entire directory including
all sub-directories. When restoring, the directories will automatically
be created. For example:
DWC ar backup \source/s
This will add all files in the directory "source", and all of its sub-
directories, to the archive "backup". The names of the directories
that the files are in will be recorded with the files in the archive.
To reproduce the entire directory tree on another drive, one could type:
DWC erw backup d:
This will extract all the files in the archive "backup" to drive D.
The files that have a directory recorded with them will be put in those
directories on drive D. If the directories do not exist, they will
automatically be created. If the "warning" option was not used, you
would be prompted whether or not you want the directories created. If
the "record" option was not used, all files would simply be extracted to
the current directory of drive D. If the following was typed:
DWC erwq backup d:*.c a:\*.c
This would extract all "c" files in the archive to drive D, to their
recorded directories, and create the directories automatically. Then
all "c" files would be extracted (a second time) to the root directory
of drive A ignoring what directories were recorded with the files. As
each file is extracted, the User would be be prompted for confirmation
as to whether or not that file should be extracted.
Please note that currently, no two files with the same name can be added
to the archive even though they are in different directories. This will
be corrected in a future release.
MISCELLANEOUS OPTIONS:
---------------------
- Negate - Negates or reverses the effect of the option following.
This is useful to override options that were prepended
automatically when using the DWCADD environment variable.
For example:
"-b" means don't do backups
"-s" means don't suppress compression
"-w" means don't suppress warning messages
"-z" means don't optimize for size (use speed)
.. etc ..
<digits> - This number is the maximum number of entries allowed
in the archive's directory when loaded into memory.
The default is 900 which requires about 30K, but can
be set from 100 to 1800.
WILDCARDS:
---------
Wildcards can be used in both the archive name and all files in the
file list. If a name used is the name of a DOS directory, then
"*.*" is assumed. For example:
DWC a test dos
If "dos" is a file, then it will be added as normal. But if "dos"
is a directory then all files in that directory will be added just
as if the following command was given:
DWC a test dos\*.*
This is the same for the archive name. If "test" is the name of a
directory, then all archives in that directory will be operated on just
as if the following command was given:
DWC a test\*.* dos\*.*
Wildcards in the archive name are more common when listing or extracting.
For example:
DWC ewo a:* \include\*.h *.lib \doc\*.doc
This will extract from all archives on drive A. Only the files with
more recent dates, or that do not already exist, will be extracted and
all warnings (such as "File not found" warnings) will be suppressed.
"h" files and "lib" files will be extracted to the directory "\include",
while "doc" files will be extracted to the directory "\doc".
The "/s" option may be tacked onto the end of any archive name or file
name to extend wildcard expansion to all sub-directories. For example:
DWC a test dos\*.txt/s
This means to add all "txt" files in the "dos" directory and all
directories in the "dos" directory and all directories in those
directories, and so on. One can add all files on a drive by giving
the command:
DWC a test \*.*/s
Or even more simply:
DWC a test \/s
Or:
DWC a test a:\/s
Which adds all files in all directories on the A drive.
PATHNAMES:
---------
All file path names may be formed using either back slashes or forward
slashes. Thus, the following two commands are identical:
DWC a c:\util\save d:\stuff\*.*
DWC a c:/util/save d:/stuff/*.*
RAMDISK SUPPORT:
---------------
When adding to an archive, a temporary archive is created and then
re-named to the new archive when the add is successfully completed.
This archive is normally put in the current directory, but can be
put in any other directory by specifying the path in an environment
variable. The following environment variables are searched in order
for a path to use:
DWCTEMP
ARCTEMP
TEMP
TMP
To make DWC put the temporary archive on a ramdisk on drive D, just
type:
set DWCTEMP=D:
Another temporary file that DWC uses is a temporary extract file.
When a file is extracted, it is first extracted to a temporary file
and, if successful, re-named to the actual extracted file. (Note,
this only happens if an existing file is being overwritten.)
When re-naming a temporary file from one drive to another, there
may be an out of disk space error. In this case, the file is re-named
in place and the User is warned what happened to his file. If there
is an error re-naming the file in place, then the User is told the
name of the temporary file where his data is now at.
Also, the control-C interrupt is handled, and all temporary files
are deleted before the program terminates.
ENVIRONMENT VARIABLES:
---------------------
Besides the environment variable used to indicate where the temporary
files should be place, there are three other environment variables as
follows:
DWCDEF - Defines the default command and options to execute
when none are given.
DWCADD - Defines options to prepend to the ones given on the
command line.
TZ - Sets the time zone for your computer. (This is a
standard MicroSoft C library environment variable.)
For example:
C>set DWCDEF=x
Will cause an archive to be automatically extracted when no command is
given as in:
C>dwc test
Here all files from the archive "test" will be extracted because the
default command is "x" as defined be the environment variable DWCDEF.
If this environment variable is not set, the default command will be
'l', or the list command.
C>set DWCADD=zq
Will cause the options "z" and "q" to be prepended to whatever options
the user supplies on the command line. The command:
C>dwc a test
will in effect become,
C>dwc zqa test
Here, files will be added using the "size" algorithm and the user will
be prompted before each file is added. Please note that options are
parsed in left to right order, so that the following command:
C>dwc ay test
would override the effect of the "z" option. Also, options that do
not apply for a given command are simply ignored.
The environment variable TZ is used to set the time zone that you
are in. This effects how a file's time (and possibly date) is
displayed when files are listed with the 'v' and 'l' options and
effects what date and time the files are given when they are extracted.
Say someone who lives in New York adds a file dated Nov 23, 87 - 9:19p
to an archive and then gives the archive to a friend in California.
Normally, if neither user has set the TZ environment variable, the
file when extracted in California would be given the same date and
time. However, if both users have set the TZ variable appropriately,
then the file extracted in California would be given the time 6:19p,
which shows the correct time of its creation.
The default time zone is Pacific daylight savings time. This is
denoted as follows:
SET TZ=PST8PDT
The value of TZ must be a three-letter time zone name (such as EST),
followed by a signed or unsigned number giving the difference between
Greenwich mean time and the local time zone. The number may be followed
by a three-letter daylight-saving-time zone name (such as EDT).
MEMORY:
------
Memory requirements vary. Given lots of memory, the program will use
the following amounts:
"size" compression - 410K
"speed" compression - 320K
decompression - 306K
Those figures include two very large buffers that can be as large as
63K each. However, if memory does not permit, then these buffers will
be automatically reduced so that memory requirements are as follows:
"size" compression - 290K
"speed" compression - 198K
decompression - 182K
Now this assumes the default size of the in-memory directory which
at 900 entries requires about 30K. This can be reduced to 100
entries or raised to 1800 entries. Say it's reduced to 300, that
would give us:
"size" compression - 270K
"speed" compression - 178K
decompression - 162K
Now, the "size" compression is a special case, as it can be reduced
even more. If one wants to use the "z" option, but memory does not
permit, then the program will automatically reduce the size of the
hash table until memory permits. The hash table starts out at 31K
and will be reduced down to 26K. This is the number of entries in
the hash table each of which requires 4 bytes. Thus, at best this
would give us:
"size" compression - 250K
This as the trade-off requiring more time (shouldn't be more than
twice as slow). If memory still doesn't permit, then the string table
will be reduced in order to make more room. The string table has 22K
entries and will be reduced down to 16K if need be. This will save
us 5 bytes per entry, or at best would give us:
"size" compression - 220K
This has the trade-off of worse compression as the "size" compression
gets most of its advantage by using a large string table. However,
this is still better than the "speed" option which uses a 12K string
table and squashing which uses a 8K string table (ARC uses a 4K table).
Please note, that the "l" and "v" commands (the list commands) usually
require only about 60K of memory. However, if one is listing an
archive that has a header file, then the header file will be extracted
during the list, and thus, require the same amount of memory described
above for decompression. Also, if one lists more than one archive at
a time, then DWC assumes the worst case and allocs memory assuming one
of the archives will contain a header file.
Also note, that in the case of the "l", "v", "h", and "x" or "e"
commands, when used with only one archive, that the size of the
in-memory directory is based on the actual number of entries in the
archive. Thus, if the archive has more entries than had been specified
for the directory to hold, there will be no directory overflow error.
Also, the minimum amount of memory will be used.
ERROR CODES:
-----------
DWC returns error codes to DOS that can be tested for in batch files.
If no errors or warnings occur, then DWC will return 0. The following
sections list all possible errors and warnings along with the codes
returned if that warning or error occurs.
Please note that often, DWC will continue as best it can even after a
warning or error occurs. In this case, multiple errors or warnings
may occur. They are given the following error codes:
Multiple errors: 2
Multiple warnings: 3
Also, error codes override any warnings. So if to two warnings occur
and only one error with the code of 20, then DWC will return 20.
If DWC is terminated by a Control-C, then DWC will return:
Control-C: 1
USAGE ERRORS:
------------
These are the possible errors that result in immediate termination
of DWC with an error message and the normal usage display. They
can only be suppressed with the "!" option.
Code Message
10 ERROR: Illegal parameter in argument list.
- A character in the command and options argument was not
a known command or option. If "!" follows the offending
character, this message would not be suppressed.
11 ERROR: No command specified.
- Only options but no command was found in the command and
options argument.
12 ERROR: Only ONE command allowed.
- More than one command was found in the command and options-
argument. This is illegal.
13 ERROR: Password required with the 'g' option.
- No password was found to follow the "g" option in the command
and options argument.
14 ERROR: Missing archive file in argument list.
- Archive file listed on command has an extension other than
".DWC", or ".*".
ERRORS:
------
These are the possible errors that DWC can report. They can only be
suppressed with the "!" option.
Code Message
20 ERROR: Out of memory
- Ran out of memory. See section on memory requirements. It's
possible to run out of memory even if your computer has lots
as memory for various reasons. One possible reason is too many
files matching the wildcards specified. This error causes
immediate termination.
21 ERROR: Files must be specified to be deleted.
- The delete command was given but no files specified. This error
causes immediate termination.
22 ERROR: No header file specified.
- The header command was given but no header file was specified.
This error causes immediate termination.
23 ERROR: Can't open NULL output channel
- When messages are suppressed, they are redirected to the nul
output, but it failed to open. This error causes immediate
termination.
24 ERROR: Can't open archive ssss.xxx for writing to.
- The header command could not re-open the archive in write mode.
This error causes immediate termination.
25 ERROR: Out of disk space on drive X:, giving up.
- Ran out of space on the indicated drive. The temporary archive
file is deleted. This error causes immediate termination.
40 ERROR: Archive file ssss.xxx does not exist.
- Command requires an archive and it cannot be opened.
41 ERROR: Can't create temporary file tttt.xxx ... Skipping ssss.xxx
- The temporary extract file could not be created, so the file
ssss.xxx is not extracted.
42 ERROR: Unexpected EOF while reading ssss.xxx ... Skipping
- An unexpected EOF was encountered while seeking to the position
in the archive where the file ssss.xxx was supposed to be.
43 ERROR: File ssss.xxx corrupted, CRC error
43 ERROR: File ssss.xxx corrupted, Stack Overflow
43 ERROR: File ssss.xxx corrupted, Size Mismatch
- The extracted file was corrupted as detected by a CRC error, or
a Lempel-Ziv un-compress stack overflow, or the extracted file's
size does not equal the saved size.
44 ERROR: ssss.xxx not a DWC archive file or is corrupted.
- The last three bytes of a DWC archive file must be the letters
"DWC". Either this or some other obvious error in the file
was found when opening it.
45 ERROR: Directory of archive ssss.xxx corrupted.
- The number of directory entries stored with the archive caused
a seek past the beginning of the file.
46 ERROR: Can't create temporary DWC file ssss.xxx
- Temporary archive file used on a add could not be created.
47 ERROR: Archive ssss.xxx too corrupted to use.
- All directory entries in the archive are corrupted.
48 ERROR: Can't create file ssss.xxx
- While re-naming a file, the new file could not be created.
49 ERROR: Ran out of disk space. File ssss.xxx is now in the temporary
directory dddd
- While copying a temporary file from one drive to another, we
ran out of disk space, so the file specified is now in the
directory specified.
50 ERROR: Ran out of disk space. File ssss.xxx is now in the temporary
directory and file ddd\tttt.xxx
- While copying a temporary file from one drive to another, we
ran out of disk space, so the file specified is now in the
directory specified and has the new name specified.
51 ERROR: Drive x: does not exist.
- When trying to open the archive file, we found that the drive
specified did not exist.
52 ERROR: Can't create archive tttt.xxx.
- The archive name includes wildcard characters and cannot be
created.
WARNINGS:
--------
These are the possible warnings that DWC can report. They can be
suppress using the "w" option or the "!" option.
Code Message
none WARNING: Not enough memory to optimize
- In order to optimize for size, one needs at least 248K of
free memory (up to 410K will be used.) Normal compression
requires at least 198K of free. These figures assume the
default size of the in-memory directory.
60 WARNING: File ssss.xxx repeated ... Ignoring
- One cannot add more than one file with the same name.
61 WARNING: File not found: ssss.xxx
- The file specified is not in the archive.
62 WARNING: Can't open temporary file tttt.xxx ... Skipping ssss.xxx
- The temporary extract file could not be created, so the file
ssss.xxx, that was to be converted, is skipped
63 WARNING: Can't find file ssss.xxx ... Skipping it.
- The file that was to be added could not be found, so it is
skipped
63 WARNING: Can't open file ssss.xxx ... Skipping it.
- The file that was to be added could not be opened, so it is
skipped
64 WARNING: File ssss.xxx archived with password ... Skipping
- An attempt was made to extract an encrypted file without
giving a password, so it is skipped
65 WARNING: Extraction of the archive file ssss.xxx from itself
and on top of itself is NOT allowed ... Skipping\n");
- This warning is not likely, but is given to warn the User
of a destructive extraction.
66 UNKNOWN compression method ... Skipping
- The file was compressed using an unknown method and cannot
be uncompressed using this release of the archiver.
67 WARNING: Header file not found in archive.
- The header file named does not match any file in the archive.
68 WARNING: More than one header specified. Using ssss.xxx.
- More than one archive file was listed in the file list.
So DWC will just use the first one.
69 WARNING: File(s) specified not found in archive.
- The file (or files) specified for the equal command could
not be found in the archive.
70 WARNING: Only xx directory entries out of nn found.
- The archive's directory is tacked onto the end of the archive
file and EOF was reached before all entries were read in.
71 WARNING: Directory entry # xx, file "ssss.xxx" corrupted .. Ignoring.
- The specified directory has corrupted data
72 WARNING: Unexpected EOF, ignoring...
- While copying a file, an unexpected EOF was encountered.