Re: [PATCH 02/16] rpcrt4: Restore original error code when ReadFile fails with ERROR_MORE_DATA.

[Alexandre Julliard]

Jacek Caban <jacek(a)codeweavers.com> writes:
> @@ -448,6 +448,7 @@ static int rpcrt4_conn_np_read(RpcConnection *Connection,
>    char *buf = buffer;
>    BOOL ret = TRUE;
>    unsigned int bytes_left = count;
> +  DWORD err = GetLastError();
>
> while (bytes_left)
>    {
> @@ -460,6 +461,7 @@ static int rpcrt4_conn_np_read(RpcConnection *Connection,
>      bytes_left -= bytes_read;
>      buf += bytes_read;
>    }
> +  if (ret) SetLastError(err);

I'd suggest using NtReadFile instead.

-- 
Alexandre Julliard
julliard(a)winehq.org

[PATCH 02/16] rpcrt4: Restore original error code when ReadFile fails with ERROR_MORE_DATA.

[Jacek Caban]

On 06.10.2016 14:27, Alexandre Julliard wrote:
> Jacek Caban <jacek(a)codeweavers.com> writes:
> > @@ -448,6 +448,7 @@ static int rpcrt4_conn_np_read(RpcConnection *Connection,
> >    char *buf = buffer;
> >    BOOL ret = TRUE;
> >    unsigned int bytes_left = count;
> > +  DWORD err = GetLastError();
> >
> > while (bytes_left)
> >    {
> > @@ -460,6 +461,7 @@ static int rpcrt4_conn_np_read(RpcConnection *Connection,
> >      bytes_left -= bytes_read;
> >      buf += bytes_read;
> >    }
> > +  if (ret) SetLastError(err);
> > I'd suggest using NtReadFile instead.

Good point, thanks. I sent an updated patch. It seems to me that we
could even get rid the loop here once message mode support is in (but it
would need closer look at rpcrt4 first).

Thanks,
Jacek