Filename case handling

[Duane Clark]

I have a question about the handling of filename case when trying to 
find an existing file. When files are on a win filesystem, the case is 
ignored, by the setting of flags by DRIVE_GetFlags(). As expected.

When on a ext filesystem, that call sets the DRIVE_CASE_SENSITIVE flag, 
which is ok. But then the flag is used in the call to 
DOSFS_FindUnixName() (from DOSFS_GetFullName()), and I guess the 
fundamental question I have is under what circumstances wine would want 
to do a case sensitive search.

One of my apps (Xilinx ngdbuild) always supplies upper case names when 
searching for a file, but the files always have lower case names (they 
were created by another Xilinx app). When searching for this file in 
DOSFS_FindUnixName() on an ext filesystem, the first test always fails, 
because we do a case sensitive test:

             if (!ignore_case)
             {
                 if (!strncmp( long_name, name, len )) break;
             }

However, and here is the other part I am questioning, if the file is an 
8.3 filename, an alternate dos filename is created by 
DOSFS_ToDosFCBFormat(), and then a second test is performed here:

             if (!strcmp( dos_name, short_name )) break;

This call passes and the file is found.

However, if the file is not an 8.3 filename, the call to 
DOSFS_ToDosFCBFormat() fails, and no case insensitive test is made.

So it seems to me that either a case sensitive search should be made in 
both cases, or in neither case. And of course I think that it should be 
both cases (since this fixes my app) :-)

Duane