re: ntdll: Fix NtQueryInformationToken(TokenGroups)

[Dan Kegel]

Rob wrote:
> Fix the buffer check for NtQueryInformationToken(TokenGroups) so that it
> doesn't return STATUS_BUFFER_TOO_SMALL when it shouldn't. Use the same
> code for returning the required buffer and for calculating whether the
> buffer is sufficient so this can't happen again.

Sadly, this doesn't seem to fix mdac installation.  I still need my
Magic Kludge:
--- a/dlls/ntdll/nt.c
+++ b/dlls/ntdll/nt.c
@@ -203,7 +203,7 @@ NTSTATUS WINAPI NtQueryInformationToken(
     switch (tokeninfoclass)
     {
     case TokenGroups:
-        len = sizeof(TOKEN_GROUPS);
+        len = sizeof(TOKEN_GROUPS) + 400 /* WAG */;
         break;
     case TokenOwner:
         len = sizeof(TOKEN_OWNER) + sizeof(SID);

Have you tested with mdac-2.7's installer?  It seems to tickle a path
you're not checking.
- Dan

--
Wine for Windows ISVs: http://kegel.com/wine/isv

ntdll: Fix NtQueryInformationToken(TokenGroups)

[Robert Shearman]

Dan Kegel wrote:
> Rob wrote:
> > Fix the buffer check for NtQueryInformationToken(TokenGroups) so that it
> > doesn't return STATUS_BUFFER_TOO_SMALL when it shouldn't. Use the same
> > code for returning the required buffer and for calculating whether the
> > buffer is sufficient so this can't happen again.
>
> Sadly, this doesn't seem to fix mdac installation.  I still need my
> Magic Kludge:
> --- a/dlls/ntdll/nt.c
> +++ b/dlls/ntdll/nt.c
> @@ -203,7 +203,7 @@ NTSTATUS WINAPI NtQueryInformationToken(
>     switch (tokeninfoclass)
>     {
>     case TokenGroups:
> -
>    len = sizeof(TOKEN_GROUPS);
> -
>    len = sizeof(TOKEN_GROUPS) + 400 /* WAG */;
>   break;
> case TokenOwner:
>       len = sizeof(TOKEN_OWNER) + sizeof(SID);
>
> Have you tested with mdac-2.7's installer?  It seems to tickle a path
> you're not checking.

Hi Dan,

Sorry about this regression. Hopefully, the attached patch should fix it.

ntdll: Fix NtQueryInformationToken(TokenGroups)

[Dan Kegel]

On 5/2/06, Robert Shearman  wrote:
> > Sadly, this doesn't seem to fix mdac installation.
>
> Sorry about this regression. Hopefully, the attached patch should fix it.

OK, this time I tried your patch mdac installed ok.  Must have been a brain fart
the first time.  Onwards and upwards...
- Dan

--
Wine for Windows ISVs: http://kegel.com/wine/isv