Zippy throws RangeDefect when parsing file permissions on 32-bit systems.

[nervecenter]

When compiled for Arm 32-bit and run on a Raspberry Pi Zero, zippy throws the following RangeDefect:

Error: unhandled exception: value out of range: 2176188416 notin -2147483648 .. 2147483647 [RangeDefect]

This is because the proc parseFilePermissions() is set up to read the platform-flexible signed int, and externalFileAttr: uint32 is converted to an int when parsing file permissions. It should instead be used as the uint32 it already is. We can fix this by changing the following two lines:

• internal.nim line 285:

  proc parseFilePermissions*(permissions: uint32): set[FilePermission] =

• ziparchives.nim line 386:

      filePermissions: parseFilePermissions(externalFileAttr shr 16)

These changes negate the issue on the Raspberry Pi Zero, and hopefully should do the same on other 32-bit systems.

[guzba]

Thanks for reporting the issue and debugging information. This should be fixed in release 0.10.16.