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1987-05-03
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FIZ(1) **IX Programmer's Manual FIZ(1)
NAME
fiz - recover data from damaged Zoo archives
SYNOPSIS
fiz archive[.zoo]
DESCRIPTION
Fiz, the fix zoo utility, helps extract data from damaged
archives. When invoked on a zoo archive, fiz searches the
archive for directory entries. For each directory entry
found, it prints the position of the directory entry within
the archive (a decimal number), the associated path prefix
if any, the short filename, and the long filename if any.
The first directory entry listed (with a meaningless
filename) is usually the archive header and should be
ignored. The last directory entry listed (with null direc-
tory and file names) is the trailing null directory entry
that every zoo archive contains and this too should be
ignored.
Fiz converts any unprintable characters encountered in a
filename to printable equivalents before printing them.
Control characters are converted to corresponding digraphs
(e.g. control A becomes "^A") and characters with the eighth
bit set are printed preceded by a tilde ("~"). If fiz
detects a corrupted directory entry CRC (not the file data
CRC), it indicates so.
Make a record of Fiz's output by redirecting it to a file.
Then list the undamaged files using Zoo version 1.41 or
later as follows:
zoo l@n archive [.zoo]
where n is a position within the damaged zoo archive,
obtained from the output of fiz. If n is properly chosen,
the damaged portion of the zoo archive will be ignored and
all remaining undamaged filenames will be listed. To
extract undamaged files use the command:
zoo x@n archive[.zoo]
where n is a decimal integer obtained from fiz.
The @n option may be used in combination with all other
legal options for zoo.
SEE ALSO
zoo(1)
BUGS
Printed 2/6/87 February 6, 1987 1
FIZ(1) **IX Programmer's Manual FIZ(1)
DIAGNOSTICS
If fiz detects a CRC error in a directory entry it so indi-
cates. This simply serves as a warning and does not neces-
sarily imply that the file data are corrupted.
FUTURE DIRECTIONS
Currently fiz does not look for the file data, but only
locates undamaged directory entries. A future version will
also search for the leader that precedes each archived file
and permit extraction even if the corresponding directory
entry is damaged.
AUTHOR
Rahul Dhesi
Printed 2/6/87 February 6, 1987 2