packed_buffer_next_entry_info

	status.i4.v = packed_buffer_next_entry_info(packed_buffer.s.r
						    [,data_type.i4.r]
						    [,data_length.i4.r])

	This routine will retrieve information about the next entry
	in a packed data buffer.

	packed_buffer	packed data buffer to retrieve from
	[data_type]	returned next data type to be retrieved from buffer
			(CNV_xxx constants)
	[data_length]	returned next length/number of elements to be
			retrieved from buffer

	This function returns ACNET status values as follows:

	OK			success
	CLIB_NOINIT		no information in buffer
	CLIB_NO_SUCH		entire buffer has been read

	This function requires the following include files:

	cbslib_h

	Related functions:

	packed_buffer_get_c, packed_buffer_init, packed_buffer_rewind,
	packed_buffer_fill_c, packed_buffer_add_c, packed_buffer_free,
	packed_buffer_size, packed_buffer_copy_data_c

	C/C++ usage:

	int	status;
	int	data_type;
	int	data_length;
	PACKED_BUFFER_DATA	packed_buffer;

	status = packed_buffer_next_entry_info(&packed_buffer,&data_type,
					       &data_length);