macutils compiled on x86-64 uses 64 bit integers for 32-bit CRC calculations

[Joseph Oswald]

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.

[Joseph Oswald (oz617)]

Hopefully, this is a properly formatted patch for a minimal change to crc/makecrc.c

I attempted to use git-buildpackage and git format-patch.

[Ubuntu Foundations Team Bug Bot (crichton)]

The attachment "0001-crc-makecrc.c-use-explictly-sized-uint16-32_t-types.patch" seems to be a debdiff. The ubuntu-sponsors team has been subscribed to the bug report so that they can review and hopefully sponsor the debdiff. If the attachment isn't a patch, please remove the "patch" flag from the attachment, remove the "patch" tag, and if you are member of the ~ubuntu-sponsors, unsubscribe the team.

[This is an automated message performed by a Launchpad user owned by ~brian-murray, for any issue please contact him.]