Client message callback example

This is an example of a client message callback:

/*

         ** ex_clientmsg_cb()

**

         ** Type of function:

         **      Example program client message handler

**

         ** Purpose:

         **      Installed as a callback into Open Client.

**

         ** Returns:

         **      CS_SUCCEED

**

         ** Side Effects:

         **      None

*/

        CS_RETCODE CS_PUBLIC

         ex_clientmsg_cb(context, connection, errmsg)

         CS_CONTEXT        *context

         CS_CONNECTION     *connection;

         CS_CLIENTMSG      *errmsg;

             fprintf(EX_ERROR_OUT, "\nOpen Client Message:\n");

             fprintf(EX_ERROR_OUT, "Message number:

                 LAYER = (%ld) ORIGIN = (%ld) ",

                 CS_LAYER(errmsg->msgnumber),

                 CS_ORIGIN(errmsg->msgnumber));

             fprintf(EX_ERROR_OUT, "SEVERITY = (%ld)

                 NUMBER = (%ld)\n",

                 CS_SEVERITY(errmsg->msgnumber),

                 CS_NUMBER(errmsg->msgnumber));

             fprintf(EX_ERROR_OUT, "Message String: %s\n",

                 errmsg->msgstring);

             if (errmsg->osstringlen > 0)

                 fprintf(EX_ERROR_OUT, "Operating System \

                     Error: %s\n", errmsg->osstring);

            return CS_SUCCEED;