| /* ********************************************************************* |
| * |
| * Sun elects to have this file available under and governed by the |
| * Mozilla Public License Version 1.1 ("MPL") (see |
| * http://www.mozilla.org/MPL/ for full license text). For the avoidance |
| * of doubt and subject to the following, Sun also elects to allow |
| * licensees to use this file under the MPL, the GNU General Public |
| * License version 2 only or the Lesser General Public License version |
| * 2.1 only. Any references to the "GNU General Public License version 2 |
| * or later" or "GPL" in the following shall be construed to mean the |
| * GNU General Public License version 2 only. Any references to the "GNU |
| * Lesser General Public License version 2.1 or later" or "LGPL" in the |
| * following shall be construed to mean the GNU Lesser General Public |
| * License version 2.1 only. However, the following notice accompanied |
| * the original version of this file: |
| * |
| * Version: MPL 1.1/GPL 2.0/LGPL 2.1 |
| * |
| * The contents of this file are subject to the Mozilla Public License Version |
| * 1.1 (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * http://www.mozilla.org/MPL/ |
| * |
| * Software distributed under the License is distributed on an "AS IS" basis, |
| * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License |
| * for the specific language governing rights and limitations under the |
| * License. |
| * |
| * The Original Code is the Netscape security libraries. |
| * |
| * The Initial Developer of the Original Code is |
| * Netscape Communications Corporation. |
| * Portions created by the Initial Developer are Copyright (C) 1994-2000 |
| * the Initial Developer. All Rights Reserved. |
| * |
| * Contributor(s): |
| * |
| * Alternatively, the contents of this file may be used under the terms of |
| * either the GNU General Public License Version 2 or later (the "GPL"), or |
| * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), |
| * in which case the provisions of the GPL or the LGPL are applicable instead |
| * of those above. If you wish to allow use of your version of this file only |
| * under the terms of either the GPL or the LGPL, and not to allow others to |
| * use your version of this file under the terms of the MPL, indicate your |
| * decision by deleting the provisions above and replace them with the notice |
| * and other provisions required by the GPL or the LGPL. If you do not delete |
| * the provisions above, a recipient may use your version of this file under |
| * the terms of any one of the MPL, the GPL or the LGPL. |
| * |
| *********************************************************************** */ |
| /* |
| * Copyright (c) 2007, Oracle and/or its affiliates. All rights reserved. |
| * Use is subject to license terms. |
| */ |
| |
| #pragma ident "%Z%%M% %I% %E% SMI" |
| |
| /* |
| * Support routines for SECItem data structure. |
| * |
| * $Id: secitem.c,v 1.14 2006/05/22 22:24:34 wtchang%redhat.com Exp $ |
| */ |
| |
| #include <sys/types.h> |
| |
| #ifndef _WIN32 |
| #ifndef __linux__ |
| #include <sys/systm.h> |
| #endif /* __linux__ */ |
| #include <sys/param.h> |
| #endif /* _WIN32 */ |
| |
| #ifdef _KERNEL |
| #include <sys/kmem.h> |
| #else |
| #include <string.h> |
| |
| #ifndef _WIN32 |
| #include <strings.h> |
| #endif /* _WIN32 */ |
| |
| #include <assert.h> |
| #endif |
| #include "ec.h" |
| #include "ecl-curve.h" |
| #include "ecc_impl.h" |
| |
| void SECITEM_FreeItem(SECItem *, PRBool); |
| |
| SECItem * |
| SECITEM_AllocItem(PRArenaPool *arena, SECItem *item, unsigned int len, |
| int kmflag) |
| { |
| SECItem *result = NULL; |
| void *mark = NULL; |
| |
| if (arena != NULL) { |
| mark = PORT_ArenaMark(arena); |
| } |
| |
| if (item == NULL) { |
| if (arena != NULL) { |
| result = PORT_ArenaZAlloc(arena, sizeof(SECItem), kmflag); |
| } else { |
| result = PORT_ZAlloc(sizeof(SECItem), kmflag); |
| } |
| if (result == NULL) { |
| goto loser; |
| } |
| } else { |
| PORT_Assert(item->data == NULL); |
| result = item; |
| } |
| |
| result->len = len; |
| if (len) { |
| if (arena != NULL) { |
| result->data = PORT_ArenaAlloc(arena, len, kmflag); |
| } else { |
| result->data = PORT_Alloc(len, kmflag); |
| } |
| if (result->data == NULL) { |
| goto loser; |
| } |
| } else { |
| result->data = NULL; |
| } |
| |
| if (mark) { |
| PORT_ArenaUnmark(arena, mark); |
| } |
| return(result); |
| |
| loser: |
| if ( arena != NULL ) { |
| if (mark) { |
| PORT_ArenaRelease(arena, mark); |
| } |
| if (item != NULL) { |
| item->data = NULL; |
| item->len = 0; |
| } |
| } else { |
| if (result != NULL) { |
| SECITEM_FreeItem(result, (item == NULL) ? PR_TRUE : PR_FALSE); |
| } |
| /* |
| * If item is not NULL, the above has set item->data and |
| * item->len to 0. |
| */ |
| } |
| return(NULL); |
| } |
| |
| SECStatus |
| SECITEM_CopyItem(PRArenaPool *arena, SECItem *to, const SECItem *from, |
| int kmflag) |
| { |
| to->type = from->type; |
| if (from->data && from->len) { |
| if ( arena ) { |
| to->data = (unsigned char*) PORT_ArenaAlloc(arena, from->len, |
| kmflag); |
| } else { |
| to->data = (unsigned char*) PORT_Alloc(from->len, kmflag); |
| } |
| |
| if (!to->data) { |
| return SECFailure; |
| } |
| PORT_Memcpy(to->data, from->data, from->len); |
| to->len = from->len; |
| } else { |
| to->data = 0; |
| to->len = 0; |
| } |
| return SECSuccess; |
| } |
| |
| void |
| SECITEM_FreeItem(SECItem *zap, PRBool freeit) |
| { |
| if (zap) { |
| #ifdef _KERNEL |
| kmem_free(zap->data, zap->len); |
| #else |
| free(zap->data); |
| #endif |
| zap->data = 0; |
| zap->len = 0; |
| if (freeit) { |
| #ifdef _KERNEL |
| kmem_free(zap, sizeof (SECItem)); |
| #else |
| free(zap); |
| #endif |
| } |
| } |
| } |