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/* trust-item.c - Trust item objects.
* Copyright (C) 2000 Werner Koch (dd9jn)
* Copyright (C) 2001, 2002, 2003, 2004 g10 Code GmbH
*
* This file is part of GPGME.
*
* GPGME is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* GPGME is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this program; if not, see <https://gnu.org/licenses/>.
* SPDX-License-Identifier: LGPL-2.1-or-later
*/
#if HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdlib.h>
#include <string.h>
#include <assert.h>
#include <errno.h>
#include "util.h"
#include "ops.h"
#include "sema.h"
#include "debug.h"
/* Protects all reference counters in trust items. All other accesses
to a trust item are either read only or happen before the trust
item is available to the user. */
DEFINE_STATIC_LOCK (trust_item_ref_lock);
/* Create a new trust item. */
gpgme_error_t
_gpgme_trust_item_new (gpgme_trust_item_t *r_item)
{
gpgme_trust_item_t item;
item = calloc (1, sizeof *item);
if (!item)
return gpg_error_from_syserror ();
item->_refs = 1;
item->keyid = item->_keyid;
item->_keyid[16] = '\0';
item->owner_trust = item->_owner_trust;
item->_owner_trust[1] = '\0';
item->validity = item->_validity;
item->_validity[1] = '\0';
*r_item = item;
return 0;
}
/* Acquire a reference to ITEM. */
void
gpgme_trust_item_ref (gpgme_trust_item_t item)
{
LOCK (trust_item_ref_lock);
item->_refs++;
UNLOCK (trust_item_ref_lock);
}
/* gpgme_trust_item_unref releases the trust item object. Note that
this function may not do an actual release if there are other
shallow copies of the object. You have to call this function for
every newly created trust item object as well as for every
gpgme_trust_item_ref() done on the trust item object. */
void
gpgme_trust_item_unref (gpgme_trust_item_t item)
{
LOCK (trust_item_ref_lock);
assert (item->_refs > 0);
if (--item->_refs)
{
UNLOCK (trust_item_ref_lock);
return;
}
UNLOCK (trust_item_ref_lock);
if (item->name)
free (item->name);
free (item);
}
/* Compatibility interfaces. */
void
gpgme_trust_item_release (gpgme_trust_item_t item)
{
gpgme_trust_item_unref (item);
}
/* Return the value of the attribute WHAT of ITEM, which has to be
representable by a string. */
const char *gpgme_trust_item_get_string_attr (gpgme_trust_item_t item,
_gpgme_attr_t what,
const void *reserved, int idx)
{
const char *val = NULL;
if (!item)
return NULL;
if (reserved)
return NULL;
if (idx)
return NULL;
switch (what)
{
case GPGME_ATTR_KEYID:
val = item->keyid;
break;
case GPGME_ATTR_OTRUST:
val = item->owner_trust;
break;
case GPGME_ATTR_VALIDITY:
val = item->validity;
break;
case GPGME_ATTR_USERID:
val = item->name;
break;
default:
break;
}
return val;
}
/* Return the value of the attribute WHAT of KEY, which has to be
representable by an integer. IDX specifies a running index if the
attribute appears more than once in the key. */
int gpgme_trust_item_get_int_attr (gpgme_trust_item_t item, _gpgme_attr_t what,
const void *reserved, int idx)
{
int val = 0;
if (!item)
return 0;
if (reserved)
return 0;
if (idx)
return 0;
switch (what)
{
case GPGME_ATTR_LEVEL:
val = item->level;
break;
case GPGME_ATTR_TYPE:
val = item->type;
break;
default:
break;
}
return val;
}

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