Public bug reported:
Using macunpack from macutils to unpack a CompactPro archive results in
an error message
Header CRC mismatch: got 0x79c895e4, need 0xebae4ed4
However, the CPT file unpacks successfully using CompactPro 1.52 on an
emulated Macintosh.
It appears the problem is that macunpack uses (unsigned long) 64-bit
integers for the computation of the "Zip CRC", but the CRC computation
of CompactPro only uses 32 bits.
Patching several unsigned long -> uint32_t values allows macunpack to
decode the archive.
** Affects: macutils (Ubuntu)
Importance: Undecided
Status: New
** Attachment added: "CompactPro archive exhibiting the issue"
https://bugs.launchpad.net/bugs/2136046/+attachment/5933813/+files/Terminal_2.2.cpt.bin
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https://bugs.launchpad.net/bugs/2136046
Title:
macutils compiled on x86-64 uses 64 bit integers for 32-bit CRC
calculations
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