2N/A/* -*- mode: c; c-basic-offset: 4; indent-tabs-mode: nil -*- */ 2N/A * Copyright 1995 by the Massachusetts Institute of Technology. 2N/A * All Rights Reserved. 2N/A * Export of this software from the United States of America may 2N/A * require a specific license from the United States Government. 2N/A * It is the responsibility of any person or organization contemplating 2N/A * export to obtain such a license before exporting. 2N/A * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and 2N/A * distribute this software and its documentation for any purpose and 2N/A * without fee is hereby granted, provided that the above copyright 2N/A * notice appear in all copies and that both that copyright notice and 2N/A * this permission notice appear in supporting documentation, and that 2N/A * the name of M.I.T. not be used in advertising or publicity pertaining 2N/A * to distribution of the software without specific, written prior 2N/A * permission. Furthermore if you modify this software you must label 2N/A * your software as modified software and not distribute it in such a 2N/A * fashion that it might be confused with the original M.I.T. software. 2N/A * M.I.T. makes no representations about the suitability of 2N/A * this software for any purpose. It is provided "as is" without express 2N/A * or implied warranty. 2N/A /* copy the new data first, so we can fail cleanly if malloc() 2N/A /* Find an existing entry of the specified type and point at 2N/A it, or NULL if not found */ 2N/A /* if necessary, chain a new record in the beginning and point at it */ 2N/A /* fill in the record */ 2N/A /* if the requested record isn't found, return zero bytes. 2N/A if it ever means something to have a zero-length tl_data, 2N/A this code and its callers will have to be changed */ 2N/A/* it seems odd that there's no function to remove a tl_data, but if 2N/A I need one, I'll add one */