In the 1990s, I registed my copy of Compact Pro and used it extensively
for Mac file compression. Besides firing up an emulator to run an
extractor, anyone know how to decompress the .cpt files it made?
Old Mac and DOS binaries, but I was hoping for something I could run on
Linux (preferred) or NetBSD.
On Monday, April 5, 2021 at 12:31:21 PM UTC+10, Eli the Bearded wrote:
Old Mac and DOS binaries, but I was hoping for something I could run ontry this, it says it supports compact pro: http://ibiblio.org/pub/linux/utils/compress/macutils.tar.gz
Linux (preferred) or NetBSD.
char *lzh_pointer;
But it just gives me CRC errors. These files do decompress with the DOS program I have (but then I get DOS names out, with long filenames
shortened with tildes), so I don't believe the files are corrupt as a
CRC might imply.
But it just gives me CRC errors. These files do decompress with the DOS
program I have (but then I get DOS names out, with long filenames
shortened with tildes), so I don't believe the files are corrupt as a
CRC might imply.
I looked at the DOS unpacker and the macutils sources and they look
very close and should work OK. I could debug the issue if you provide
some CompactPro archives to test.
Eight files of various sizes and content.
Eight files of various sizes and content.That's easy. Replace the entire table in crc/zip.c with the normal one starting with 0x77073096 (easily found online).
I also made a Python script to extract the archives.
Sysop: | Keyop |
---|---|
Location: | Huddersfield, West Yorkshire, UK |
Users: | 339 |
Nodes: | 16 (2 / 14) |
Uptime: | 05:32:12 |
Calls: | 7,467 |
Calls today: | 3 |
Files: | 12,691 |
Messages: | 5,628,213 |