Possible compress bug
john s salmi
salmi at dicome.uucp
Tue May 20 00:27:26 AEST 1986
In article <1145 at ariel.UUCP> dbw at ariel.UUCP (DAVE B. WOOD) writes:
>> It looks like compress 4.0 mangle. I just had a C source get mangled
>> the same way. I think it looks like part of the decompression table is
>> wrong so stuff is garbled.
>
>Losing a single byte will trash the rest of a decompressed file.
>
>Dave Wood
it appears that the compress/uncompress fault occurs only when uncompressing
multiple files, ie, ``uncompress ~/stuff/*''. i have been testing
compress 4.0 rather severely since the bug surfaced at our last local users
meeting, and have made the following observation...
i have been compressing/uncompressing rather large (14-40 Mb) raster images
and then viewing them. the uncompress bug does NOT appear if i uncompress
1 file at a time. however, if i compress a slew of files and then uncompress
them, i get errors when i cmp the uncompressed version to the virgin version.
i have NOT been able to make compress/uncompress fail on ascii files, either
single or multiple. another clue may be some indiscriminate incompatibility
between version 3.0 and version 4.0.
any other comments/views?
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