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170 lines
4.8 KiB
C
170 lines
4.8 KiB
C
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is the Netscape security libraries.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1994-2000
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#ifdef DEBUG
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static const char CVS_ID[] = "@(#) $RCSfile: find.c,v $ $Revision: 1.4 $ $Date: 2006/03/02 22:48:54 $";
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#endif /* DEBUG */
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#include "ckdbm.h"
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static void
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nss_dbm_mdFindObjects_Final
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(
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NSSCKMDFindObjects *mdFindObjects,
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NSSCKFWFindObjects *fwFindObjects,
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NSSCKMDSession *mdSession,
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NSSCKFWSession *fwSession,
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NSSCKMDToken *mdToken,
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NSSCKFWToken *fwToken,
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NSSCKMDInstance *mdInstance,
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NSSCKFWInstance *fwInstance
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)
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{
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nss_dbm_find_t *find = (nss_dbm_find_t *)mdFindObjects->etc;
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/* Locks might have system resources associated */
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(void)NSSCKFWMutex_Destroy(find->list_lock);
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(void)NSSArena_Destroy(find->arena);
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}
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static NSSCKMDObject *
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nss_dbm_mdFindObjects_Next
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(
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NSSCKMDFindObjects *mdFindObjects,
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NSSCKFWFindObjects *fwFindObjects,
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NSSCKMDSession *mdSession,
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NSSCKFWSession *fwSession,
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NSSCKMDToken *mdToken,
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NSSCKFWToken *fwToken,
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NSSCKMDInstance *mdInstance,
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NSSCKFWInstance *fwInstance,
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NSSArena *arena,
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CK_RV *pError
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)
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{
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nss_dbm_find_t *find = (nss_dbm_find_t *)mdFindObjects->etc;
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struct nss_dbm_dbt_node *node;
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nss_dbm_object_t *object;
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NSSCKMDObject *rv;
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while(1) {
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/* Lock */
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{
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*pError = NSSCKFWMutex_Lock(find->list_lock);
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if( CKR_OK != *pError ) {
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return (NSSCKMDObject *)NULL;
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}
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node = find->found;
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if( (struct nss_dbm_dbt_node *)NULL != node ) {
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find->found = node->next;
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}
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*pError = NSSCKFWMutex_Unlock(find->list_lock);
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if( CKR_OK != *pError ) {
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/* screwed now */
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return (NSSCKMDObject *)NULL;
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}
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}
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if( (struct nss_dbm_dbt_node *)NULL == node ) {
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break;
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}
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if( nss_dbm_db_object_still_exists(node->dbt) ) {
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break;
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}
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}
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if( (struct nss_dbm_dbt_node *)NULL == node ) {
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*pError = CKR_OK;
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return (NSSCKMDObject *)NULL;
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}
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object = nss_ZNEW(arena, nss_dbm_object_t);
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if( (nss_dbm_object_t *)NULL == object ) {
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*pError = CKR_HOST_MEMORY;
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return (NSSCKMDObject *)NULL;
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}
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object->arena = arena;
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object->handle = nss_ZNEW(arena, nss_dbm_dbt_t);
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if( (nss_dbm_dbt_t *)NULL == object->handle ) {
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*pError = CKR_HOST_MEMORY;
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return (NSSCKMDObject *)NULL;
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}
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object->handle->my_db = node->dbt->my_db;
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object->handle->dbt.size = node->dbt->dbt.size;
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object->handle->dbt.data = nss_ZAlloc(arena, node->dbt->dbt.size);
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if( (void *)NULL == object->handle->dbt.data ) {
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*pError = CKR_HOST_MEMORY;
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return (NSSCKMDObject *)NULL;
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}
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(void)memcpy(object->handle->dbt.data, node->dbt->dbt.data, node->dbt->dbt.size);
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rv = nss_dbm_mdObject_factory(object, pError);
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if( (NSSCKMDObject *)NULL == rv ) {
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return (NSSCKMDObject *)NULL;
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}
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return rv;
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}
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NSS_IMPLEMENT NSSCKMDFindObjects *
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nss_dbm_mdFindObjects_factory
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(
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nss_dbm_find_t *find,
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CK_RV *pError
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)
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{
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NSSCKMDFindObjects *rv;
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rv = nss_ZNEW(find->arena, NSSCKMDFindObjects);
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if( (NSSCKMDFindObjects *)NULL == rv ) {
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*pError = CKR_HOST_MEMORY;
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return (NSSCKMDFindObjects *)NULL;
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}
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rv->etc = (void *)find;
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rv->Final = nss_dbm_mdFindObjects_Final;
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rv->Next = nss_dbm_mdFindObjects_Next;
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return rv;
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}
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