odbccp32: Implement SQLGetPrivateProfileString (try 7)

[Hugh McMaster]

On Tuesday, 7 July 2015, 10:31 pm UTC+10, Nikolay Sivov wrote:
>On 07.07.2015 11:15, Alistair Leslie-Hughes wrote:
>
>> +    retval = heap_alloc(cbRetBuffer*sizeof(WCHAR));
>> +
>> +    ret = SQLGetPrivateProfileStringW(sect, entry, string, retval, cbRetBuffer, file);
>
>cbRetBuffer is A-buffer length, you're still using it as W-buffer length.

Unless I'm reading MSDN [1] incorrectly, this should work.

cbRetBuffer is the size, in characters, of RetBuffer (i.e. the A-buffer).

retval is the W-buffer. Its allocated byte size is double that of RetBuffer,
but its size, in characters, is still the same.

[1] https://msdn.microsoft.com/en-us/library/ms714560%28v=vs.85%29.aspx