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/*
* 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"
/*
* Defines
*/
#define DATUM_KIND(d) (DATUM_INFO(d)->kind)
/*
* Declarations
*/
static int has_prop(tnf_datum_t, tag_props_t);
/*
* Datum operations: for more debuggability
*/
#ifndef _DATUM_MACROS
tnf_datum_t
_tnf_datum(struct taginfo *info, caddr_t val)
{
return (_DATUM(info, val));
}
struct taginfo *
_tnf_datum_info(tnf_datum_t datum)
{
return ((struct taginfo *)_DATUM_HI(datum));
}
caddr_t
_tnf_datum_val(tnf_datum_t datum)
{
return ((caddr_t)_DATUM_LO(datum));
}
#endif
/*
* Check for valid datum
*/
void
_tnf_check_datum(tnf_datum_t datum)
{
caddr_t val;
TNF *tnf;
if (datum == TNF_DATUM_NULL)
_tnf_error(NULL, TNF_ERR_BADTNF);
val = DATUM_VAL(datum);
tnf = DATUM_TNF(datum);
if ((val <= tnf->file_start) || (val >= tnf->file_end))
_tnf_error(tnf, TNF_ERR_BADDATUM);
}
/*
* Retrieve datum kind from cached information
*/
tnf_kind_t
tnf_get_kind(tnf_datum_t datum)
{
CHECK_DATUM(datum);
/* The kind field is always completely initialized */
return (DATUM_KIND(datum));
}
/*
* Classification predicates: check the cached tag props
*/
static int
has_prop(tnf_datum_t datum, tag_props_t prop)
{
CHECK_DATUM(datum);
/* Note: No need to get base info because props inherited */
return (INFO_PROP(DATUM_INFO(datum), prop));
}
int
tnf_is_inline(tnf_datum_t datum)
{
return (has_prop(datum, TAG_PROP_INLINE));
}
int
tnf_is_scalar(tnf_datum_t datum)
{
return (has_prop(datum, TAG_PROP_SCALAR));
}
int
tnf_is_record(tnf_datum_t datum) /* XXX was: tnf_is_tagged */
{
return (has_prop(datum, TAG_PROP_TAGGED));
}
int
tnf_is_array(tnf_datum_t datum)
{
return (has_prop(datum, TAG_PROP_ARRAY));
}
int
tnf_is_string(tnf_datum_t datum)
{
return (has_prop(datum, TAG_PROP_STRING));
}
int
tnf_is_struct(tnf_datum_t datum)
{
return (has_prop(datum, TAG_PROP_STRUCT));
}
int
tnf_is_type(tnf_datum_t datum)
{
return (has_prop(datum, TAG_PROP_TYPE));
}
/*
* Get the type datum for any datum
*/
tnf_datum_t
tnf_get_type(tnf_datum_t datum)
{
struct taginfo *info;
CHECK_DATUM(datum);
info = DATUM_INFO(datum);
return (DATUM(info->meta, (caddr_t)info->tag));
}
/*
* Get the type name for any datum
* XXX Beware: this is a pointer into the file
*/
char *
tnf_get_type_name(tnf_datum_t datum)
{
CHECK_DATUM(datum);
return (DATUM_INFO(datum)->name); /* cached */
}
/*
* Get the size of any datum
*/
size_t
tnf_get_size(tnf_datum_t datum)
{
struct taginfo *info;
size_t size;
CHECK_DATUM(datum);
info = DATUM_INFO(datum);
size = info->size;
if (size == (size_t)-1) /* self sized */
/* XXX tnf_get_slot_named(datum, TNF_N_SELF_SIZE) */
/* LINTED pointer cast may result in improper alignment */
return (_tnf_get_self_size(info->tnf, DATUM_RECORD(datum)));
else
return (size);
}
/*
* Get raw pointer to any datum
*/
caddr_t
tnf_get_raw(tnf_datum_t datum)
{
CHECK_DATUM(datum);
return (DATUM_VAL(datum));
}
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