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VMS Help DCE, DCE_RPC, Application Routines, rpc_ns_binding_lookup_begin *Conan The Librarian |
NAME
rpc_ns_binding_lookup_begin - Creates a lookup context for an
interface and an object in the name
service database
Used by client applications.
SYNOPSIS
#include <dce/rpc.h>
void rpc_ns_binding_lookup_begin( unsigned32 entry_name_syntax,
unsigned_char_t *entry_name,
rpc_if_handle_t if_handle,
uuid_t *object_uuid,
unsigned32 binding_max_count,
rpc_ns_handle_t *lookup_context,
unsigned32 *status );
PARAMETERS
Input
entry_name_syntax
An integer value that specifies the syntax of the entry_name
parameter. To use the syntax specified in the
RPC_DEFAULT_ENTRY_SYNTAX logical name, provide the value
rpc_c_ns_syntax_default.
entry_name
Specifies the entry name at which the search for compatible
binding handles begins. This can be either the global or cell-
relative name. To use the entry name found in the
RPC_DEFAULT_ENTRY logical name, supply NULL or a null string (\0)
for this parameter. When this entry name is used, the RPC runtime
automatically uses the default name syntax specified in the
RPC_DEFAULT_ENTRY_SYNTAX logical name.
if_handle
A stub-generated data structure specifying the interface to look
up. If the interface specification has not been exported or is
of no concern to the caller, specify NULL for this parameter.
In this case the bindings returned are only guaranteed to be of
a compatible and supported protocol sequence and contain the
specified object UUID. The desired interface might not be
supported by the contacted server.
object_uuid
Specifies an optional object UUID.
If you specify NULL or a nil UUID for this parameter, the returned
binding handles contain one of the object UUIDs exported by the
compatible server. If the server did not export any object UUIDs,
the returned compatible binding handles contain a nil object UUID.
For a non-nil UUID, compatible binding handles are returned from
an entry only if the server has exported the specified object
UUID.Each returned binding handle contains the specified non-nil
object UUID.
binding_max_count
Sets the maximum number of bindings to return in the
binding_vector parameter of rpc_ns_binding_lookup_next().
Specify rpc_c_binding_max_count_default to use the default count.
Output
lookup_context
Returns the name service handle for use with the
rpc_ns_binding_lookup_next() and rpc_ns_binding_lookup_done()
routines.
status
Returns the status code from this routine. This status code
indicates whether the routine completed successfully or, if
not, why not. The possible status codes and their meanings
are as follows:
rpc_s_ok Success.
rpc_s_incomplete_name
Incomplete name.
rpc_s_invalid_name_syntax
Invalid name syntax.
rpc_s_invalid_object
Invalid object.
rpc_s_no_env_setup
Environment variable not set up.
rpc_s_unsupported_name_syntax
Unsupported name syntax.
DESCRIPTION
The rpc_ns_binding_lookup_begin() routine creates a lookup context for
locating compatible server binding handles for servers. These servers
offer the specified interface and object UUID in the respective
if_handle and object_uuid parameters.
Before calling rpc_ns_binding_lookup_next(), the client application
must first create a lookup context by calling
rpc_ns_binding_lookup_begin(). The parameters to this routine
control the operation of rpc_ns_binding_lookup_next().
When finished locating binding handles, the client application calls
the rpc_ns_binding_lookup_done() routine to delete the lookup context.
Permissions Required
No permissions are required.
RETURN VALUES
No value is returned.
RELATED INFORMATION
Functions: rpc_ns_binding_lookup_done
rpc_ns_binding_lookup_next
rpc_ns_mgmt_handle_set_exp_age
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