record.c revision 7c478bd95313f5f23a4c958a745db2134aa03244
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright (c) 1994, by Sun Microsytems, Inc.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
#include "libtnf.h"
/*
* Check a record datum
*/
void
_tnf_check_record(tnf_datum_t datum)
{
CHECK_DATUM(datum);
/* All records must be tagged */
if (!INFO_TAGGED(DATUM_INFO(datum)))
_tnf_error(DATUM_TNF(datum), TNF_ERR_TYPEMISMATCH);
}
/*
* Retrieve the tag arg, encoded in low 16 bits of tag word
*/
tnf_datum_t
tnf_get_tag_arg(tnf_datum_t datum)
{
TNF *tnf;
tnf_ref32_t *arg;
CHECK_RECORD(datum);
tnf = DATUM_TNF(datum);
/* Should not give an error if not found */
/* LINTED pointer cast may result in improper alignment */
arg = _tnf_get_tag_arg(tnf, DATUM_RECORD(datum));
if (arg == TNF_NULL)
return (TNF_DATUM_NULL);
else /* repackage the tag arg with its taginfo */
return (RECORD_DATUM(tnf, arg));
}