[Bug 14465] New: NdrClientCall2 is unaware of comm_status and fault_status variables

[wine-bugs at winehq.org]

http://bugs.winehq.org/show_bug.cgi?id=14465

           Summary: NdrClientCall2 is unaware of comm_status and
                    fault_status variables
           Product: Wine
           Version: CVS/GIT
          Platform: Other
        OS/Version: other
            Status: UNCONFIRMED
          Severity: critical
          Priority: P2
         Component: rpc
        AssignedTo: wine-bugs at winehq.org
        ReportedBy: winesku at googlemail.com


Created an attachment (id=14783)
 --> (http://bugs.winehq.org/attachment.cgi?id=14783)
Test project (VS2005) of a simple RPC client/server to repro the problem

Rpc clients that specify variables or the return value as a comm_status or
fault_status variable normally do not guard their RPC call with a SEH
try-except clause. After all, using comm_status or fault_status variables is
usually done, because with these variables,  SEH try-except can be omitted, as
any exception from the client side or server side part of the call is
transformed into an error value that is assigned to the comm or fault status
variable. However, the current implementation of NdrClientCall2 unconditionally
raises exceptions, which an RPC client using comm_status and fault_status
variables is not prepared or expected to handle. As a result, such RPC clients
crash immediately if any error occurs during the course of an RPC call. Find
attached a VS2005 project of a simple RPC client and server that can call a
variety of RPCs with different comm and fault status behaviour on client and
server side, that can be used to reproduce the problem. Start the server using 

rpcsrv.exe portnumber

Start the client interactively and choose the RPC variant of choice.


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