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/* trust-item.c - Trust item objects.
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Copyright (C) 2000 Werner Koch (dd9jn)
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Copyright (C) 2001, 2002, 2003, 2004 g10 Code GmbH
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This file is part of GPGME.
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GPGME is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as
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published by the Free Software Foundation; either version 2.1 of
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the License, or (at your option) any later version.
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GPGME is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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02111-1307, USA. */
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#if HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include <stdlib.h>
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#include <string.h>
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#include <assert.h>
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#include <errno.h>
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#include "util.h"
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#include "ops.h"
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#include "sema.h"
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#include "debug.h"
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/* Protects all reference counters in trust items. All other accesses
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to a trust item are either read only or happen before the trust
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item is available to the user. */
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DEFINE_STATIC_LOCK (trust_item_ref_lock);
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/* Create a new trust item. */
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gpgme_error_t
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_gpgme_trust_item_new (gpgme_trust_item_t *r_item)
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{
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gpgme_trust_item_t item;
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item = calloc (1, sizeof *item);
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if (!item)
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return gpg_error_from_syserror ();
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item->_refs = 1;
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item->keyid = item->_keyid;
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item->_keyid[16] = '\0';
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item->owner_trust = item->_owner_trust;
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item->_owner_trust[1] = '\0';
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item->validity = item->_validity;
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item->_validity[1] = '\0';
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*r_item = item;
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return 0;
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}
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/* Acquire a reference to ITEM. */
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void
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gpgme_trust_item_ref (gpgme_trust_item_t item)
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{
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LOCK (trust_item_ref_lock);
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item->_refs++;
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UNLOCK (trust_item_ref_lock);
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}
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/* gpgme_trust_item_unref releases the trust item object. Note that
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this function may not do an actual release if there are other
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shallow copies of the object. You have to call this function for
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every newly created trust item object as well as for every
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gpgme_trust_item_ref() done on the trust item object. */
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void
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gpgme_trust_item_unref (gpgme_trust_item_t item)
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{
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LOCK (trust_item_ref_lock);
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assert (item->_refs > 0);
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if (--item->_refs)
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{
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UNLOCK (trust_item_ref_lock);
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return;
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}
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UNLOCK (trust_item_ref_lock);
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if (item->name)
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free (item->name);
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free (item);
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}
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/* Compatibility interfaces. */
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void
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gpgme_trust_item_release (gpgme_trust_item_t item)
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{
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gpgme_trust_item_unref (item);
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}
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/* Return the value of the attribute WHAT of ITEM, which has to be
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representable by a string. */
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const char *gpgme_trust_item_get_string_attr (gpgme_trust_item_t item,
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_gpgme_attr_t what,
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const void *reserved, int idx)
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{
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const char *val = NULL;
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if (!item)
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return NULL;
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if (reserved)
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return NULL;
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if (idx)
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return NULL;
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switch (what)
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{
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case GPGME_ATTR_KEYID:
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val = item->keyid;
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break;
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case GPGME_ATTR_OTRUST:
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val = item->owner_trust;
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break;
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case GPGME_ATTR_VALIDITY:
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val = item->validity;
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break;
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case GPGME_ATTR_USERID:
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val = item->name;
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break;
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default:
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break;
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}
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return val;
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}
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/* Return the value of the attribute WHAT of KEY, which has to be
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representable by an integer. IDX specifies a running index if the
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attribute appears more than once in the key. */
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int gpgme_trust_item_get_int_attr (gpgme_trust_item_t item, _gpgme_attr_t what,
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const void *reserved, int idx)
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{
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int val = 0;
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if (!item)
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return 0;
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if (reserved)
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return 0;
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if (idx)
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return 0;
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switch (what)
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{
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case GPGME_ATTR_LEVEL:
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val = item->level;
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break;
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case GPGME_ATTR_TYPE:
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val = item->type;
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break;
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default:
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break;
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}
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return val;
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}
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