Knowledge Base

This fix addresses the problem where the clnt_broadcast function was not getting a response from the Distinct portmapper even though the server that the client is attempting to connect to was registered.

The memory leak that was occuring in the rpc.dll when the portmapper was left running for a long time has been fixed.

Rpcgen32

1. The problem where the rpcgen32 utility was not producing the right files when absolute and relative paths of .x file were used is fixed.
2. Two new command line options are added to allow the file to be preprocessed by the C-Preprocessor by invoking the C preprocessor. BEFORE you can use this option you must add two values to the following registry key:
   
   

   HKEY_LOCAL_MACHINE\SOFTWARE/Distinct/Dlls\RPC32 Cpconst D CpDelim "/"

   
   The first of these sets the compiler definitions option to D and the second sets the argument delimeter to /. If your compiler uses different values set these here.
   
   

   By default, preprocessing will not be invoked. To invoke preprocessing follow these steps below:

   To invoke the C-preprocessor use the following syntax when running rpcgen32:

   rpcgen32 -p "compiler arguments" [-D name=value] where: -p invokes the preprocessor "arguments" are the set of arguments required by your compiler -D is optional and is used to specify specific compiler definitions.

   
   
   When do you need to use C-Preprocessing?
   
   Your files will require C-Preprocessing when they contain #if, #else, #ifdef, #ifndef, #if defined etc. If the files contain these definitions please use the C-Preprocessor option.
   
   Example

   If you are using cl.exe (Microsoft's Visual C++ compiler) the argument should be
   -p "cl.exe /EP /nologo" file.x.

   The existing command line options can be used in conjunction with -p option.

   If you are using a c-preprocessor other than cl.exe please enter the argument list as needed. The argument list should be able to send the processed file to the stdout and should only contain information for rcpgen32 to do further processing. That is, the output must not contain any banner or text issued by the compiler. For Microsoft C++ the /nologo option will inhibit these.
   
   Warning
   
   

   The program creates a temporary file having the name of the .x file but with a .i extension. If a file with the same name exists, its contents will be overwritten. The file will be created in the directory where the output files are generated. This file will be cleaned up before the program exits.

1. When used in the VC++ 6.0 environment the dll caused an access violation when the clnt_create() function call was called.
2. In VC++6.0 it appears that the select() function call does not honor a specified timeout. This was causing an unnecessary increase in the network traffic for each client-server call when used under the VC++6.0 environment. A workaround to this problem is included in this patch.
3. When the server is slow in responding to requests, the dll was not handling multiple client calls (clnt_call() function) which were sent from the same application in succession.
4. Some anomalies reported that were caused by the server receiving several megabytes of data have been fixed.
5. The xdr_free() routine is now correctly freeing the memory used by pmaplist.