[PATCH 1/3] ntdll: Implemenent ObjectTypeInformation class support in NtQueryObject.

[Nikolay Sivov]

On 01.06.2015 12:52, Qian Hong wrote:
> Hi,
>
> This patch fixed QQ crashing on recent Wine. Thanks Sebastian for
> improving my patch.
> Tested with wine-staging for weeks.
>
> ---
>   dlls/ntdll/om.c       | 64
> +++++++++++++++++++++++++++++++++++++++++++++++++++
>   dlls/ntdll/tests/om.c | 28 +++++++++++-----------
>   server/directory.c    |  5 ----
>   server/handle.c       | 18 +++++++++++++++
>   server/object.h       |  5 ++++
>   server/protocol.def   |  9 ++++++++
>   6 files changed, 110 insertions(+), 19 deletions(-)
>

> +            if (!(status = server_get_unix_name( handle, &unix_name )))
> +            {
> +                static const WCHAR type_fileW[] = {'F','i','l','e','\0'};
> +                int type_size = sizeof(type_fileW);
> +
> +                if (len < sizeof(*p))
> +                    status = STATUS_INFO_LENGTH_MISMATCH;
> +                else if (len < sizeof(*p) + type_size)
> +                    status = STATUS_BUFFER_OVERFLOW;
> +                else
> +                {
> +                    p->TypeName.Buffer = (WCHAR *)(p + 1);
> +                    p->TypeName.Length = type_size - sizeof(WCHAR);
> +                    p->TypeName.MaximumLength = type_size;
> +                    memcpy( p->TypeName.Buffer, type_fileW, type_size );
> +
> +                }
> +                if (used_len) *used_len = sizeof(*p) + type_size;
> +                RtlFreeAnsiString( &unix_name );
> +                break;
> +            }

Why do you need a separate server call/special case for files?