acl_register_host_request_func

	status.i4.v = acl_register_host_request_func(request_func.f.v)

	This routine registers a host request function for the Accelerator
	Command Language (ACL).  A host request function is the means for
	an ACL script (through the use of the "host_request" command) to
	pass a request to the program which executed the script.

	request_func	pointer to host request function
			(called as follows:
			 status.i4.v = request_func(request_string.i1a.r,
						    once_only.i4.v,
						    num_values.i4.r,
						    value_type.i4.r,
						    value.gp.r))

	This function returns ACNET status values as follows:

	OK			success
	CLIB_DUPREQ		a function has already been registered

	This function requires the following include files:

	ul_acl_h:acl_h, acnet_errors_h

	Related functions:

	intro_acl, acl_unregister_host_request_func,
	acl_register_login_func, acl_unregister_login_func,
	acl_register_terminal_size_func, acl_unregister_terminal_size_func,
	acl_register_user_exit_handler, acl_unregister_user_exit_handler,
	acl_execute_c, acl_file_execute_c, acl_file_read_c, acl_file_write_c,
	acl_file_exists_c, acl_db_file_exists_c, acl_compile_c, acl_free_c,
	acl_free_arg_info_c, acl_read_symbol_c, acl_read_symbol_as_string_c,
	acl_read_symbol_info_c, acl_read_symbol_dynamic_info_c,
	acl_read_symbol_names, acl_read_intrinsic_symbol_names,
	acl_parse_symbol_name, acl_script_argument_info_c,
	acl_script_has_symbol_list_c, acl_delete_symbol, acl_reinit_symbol,
	acl_info_c, acl_cancel_requests_c, acl_set_symbol_c,
	acl_default_data_source_c, acl_log_file_c, acl_default_script_path_c,
	acl_script_is_executing, acl_translate_command_string,
	acl_file_read_description_c, acl_file_read_author_c,
	acl_file_read_title_c, acl_search_db_files_c,
	acl_file_is_in_repository_c, acl_parse_script_argument_string_c,
	acl_expand_file_name_c, acl_get_user_execution_privilege,
	acl_get_user_db_edit_permission

	C/C++ usage:

	int	status;
	acl_host_request_function	request_func;

	status = acl_register_host_request_func(request_func);