Hello,
I am running into a problem with a big endian resource file.
It is a resource file containing the application version of the
application I am building.
When I construct a BAppFileInfo object pointing to the resource file,
the version information is wrong. Instead of 1.5.0 I get
16777216.83886080.0, which would be correct if it were a little endian
file.
I dug around a bit in the source code of Haiku that reads it, but I am
not sure how to solve it.
I found the following calls are being made:
- BAppFileInfo::GetVersionInfo is being called at a certain point
- This function calls _ReadData with type B_VERSION_INFO_TYPE which is
locally defined as 'APPV'
- _ReadData calls BResources::LoadResource
- LoadResource calls ResourceFile::ReadResource
- Finally ResourceFile::ReadResource reads the data from the file and
tries to convert it by swapping the data, but because
B_VERSION_INFO_TYPE is not known to the swap_data function (defined in
ByteOrder.h), the swap_data function returns B_BAD_VALUE and thus does
nothing.
I understand that the swap_data function cannot really do anything with
the type, but it seems that the BAppFileInfo::GetVersionInfo assumes
the data is valid as is and passes it back to the caller. I might be
able to fix it if BAppFileInfo could see that it is a big endian file,
but I don't see anywhere that information is accessible outside the
ResourceFile class.
Any pointers on how to fix it would be much appreciated.
Kind regards,
Mark Hellegers
--
Spangalese for beginners
`Maloya coy hoba huba.'
`My tapeworm washed the car.'
