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VMS Help DCE, DCE_RPC, Application Routines, rpc_cs_eval_with_universal *Conan The Librarian |
NAME
rpc_cs_eval_with_universal - Evaluates a server's supported
character sets and code sets during
the server binding selection process
Used indirectly by client applications.
SYNOPSIS
#include <dce/rpc.h>
void rpc_cs_eval_with_universal( rpc_ns_handle_t binding_handle,
idl_void_p_t eval_args,
idl_void_p_t *context );
PARAMETERS
Input
binding_handle
The server binding handle.
eval_args
An opaque data type that contains matching criteria that the
routine uses to perform character and code sets compatibility
evaluation.
Input/Output
context
An opaque data type that contains search context to perform
character and code sets compatibility evaluation. The routine
returns the result of the evaluation in a field within context.
DESCRIPTION
The rpc_cs_eval_with_universal() routine is a DCE RPC character and
code sets evaluation routine that can be added to an import context.
The routine provides a mechanism for a client application that is
passing character data in a heterogeneous character set and code sets
environment to evaluate a server's character and code sets
compatibility before establishing a connection with it.
Client applications do not call rpc_cs_eval_with_universal() directly.
Instead, they add it to the import context created by the
rpc_ns_binding_import_begin() routine by calling the routine
rpc_ns_import_ctx_add_eval() and specifying the routine name and the
RPC server entry name to be evaluated. When the client application
calls the rpc_ns_binding_import_next() routine to import compatible
binding handles for servers, this routine calls
rpc_cs_eval_with_universal(), which applies client-server code sets
compatibility checking as another criteria for compatible binding
selection.
The rpc_cs_eval_with_universal() routine directs the
rpc_ns_binding_import_next() routine to reject servers with
incompatible character sets. If client and server character sets
are compatible, but their supported code sets are not, the routine
establishes tags that direct the client and/or server stubs to
convert character data to the user-defined (if any) or default
intermediate code set, which is the ISO10646 (or "universal") code
set.
Application programmers need not pay attention to the arguments of
this routine. They only need to use the rpc_ns_import_ctx_add_eval()
to set the routine, for example:
rpc_ns_import_ctx_add_eval( &import_context,
rpc_c_eval_type_codesets,
(void *) nsi_entry_name,
rpc_cs_eval_with_universal,
NULL,
&status );
Permissions Required
No permissions are required.
RETURN VALUES
No value is returned.
RELATED INFORMATION
Functions: rpc_cs_eval_without_universal
rpc_cs_get_tags
rpc_ns_binding_import_begin
rpc_ns_binding_import_done
rpc_ns_binding_import_next
rpc_ns_import_ctx_add_eval
rpc_ns_mgmt_handle_set_exp_age
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