dlls/userenv: fixed stubs GetUserProfileDirectoryW/A (7)

[Paul Vriens]

Andreas Rosenberg wrote:
> 
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> 
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It's quite common for these functions to check for the needed buffersize when 
buffer=NULL and size=0 is passed.

I did a quick check on W2K3 and this is what is returned:

     sizePath = 0;
     SetLastError( 0xDEADBEEF );
     r = GetUserProfileDirectoryA( htoken , NULL, &sizePath );

userenv.c:298: (A) r : 0, sizePath : 0, GLE : 87/00000057

     sizePath = 0;
     SetLastError( 0xDEADBEEF );
     r = GetUserProfileDirectoryW( htoken , NULL, &sizePath );

userenv.c:304: (W) r : 0, sizePath : 40, GLE : 122/0000007a

So one suggestion is to also add some A-checks to the tests. Another one is not 
to rely on buffer[MAX_PATH] but use the returned required buffersize for further 
processing (HeapAlloc).

-- 
Cheers,

Paul.