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129 lines
4.5 KiB
C
129 lines
4.5 KiB
C
/* ***** 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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#ifndef _SECITEM_H_
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#define _SECITEM_H_
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#include "utilrename.h"
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/*
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* secitem.h - public data structures and prototypes for handling
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* SECItems
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*
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* $Id: secitem.h,v 1.8 2008/06/14 14:20:38 wtc%google.com Exp $
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*/
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#include "plarena.h"
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#include "plhash.h"
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#include "seccomon.h"
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SEC_BEGIN_PROTOS
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/*
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** Allocate an item. If "arena" is not NULL, then allocate from there,
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** otherwise allocate from the heap. If "item" is not NULL, allocate
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** only the data buffer for the item, not the item itself. If "len" is
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** 0, do not allocate the data buffer for the item; simply set the data
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** field to NULL and the len field to 0. The item structure is allocated
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** zero-filled; the data buffer is not zeroed. The caller is responsible
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** for initializing the type field of the item.
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**
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** The resulting item is returned; NULL if any error occurs.
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**
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** XXX This probably should take a SECItemType, but since that is mostly
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** unused and our improved APIs (aka Stan) are looming, I left it out.
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*/
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extern SECItem *SECITEM_AllocItem(PLArenaPool *arena, SECItem *item,
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unsigned int len);
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/*
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** Reallocate the data for the specified "item". If "arena" is not NULL,
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** then reallocate from there, otherwise reallocate from the heap.
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** In the case where oldlen is 0, the data is allocated (not reallocated).
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** In any case, "item" is expected to be a valid SECItem pointer;
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** SECFailure is returned if it is not. If the allocation succeeds,
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** SECSuccess is returned.
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*/
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extern SECStatus SECITEM_ReallocItem(PLArenaPool *arena, SECItem *item,
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unsigned int oldlen, unsigned int newlen);
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/*
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** Compare two items returning the difference between them.
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*/
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extern SECComparison SECITEM_CompareItem(const SECItem *a, const SECItem *b);
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/*
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** Compare two items -- if they are the same, return true; otherwise false.
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*/
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extern PRBool SECITEM_ItemsAreEqual(const SECItem *a, const SECItem *b);
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/*
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** Copy "from" to "to"
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*/
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extern SECStatus SECITEM_CopyItem(PLArenaPool *arena, SECItem *to,
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const SECItem *from);
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/*
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** Allocate an item and copy "from" into it.
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*/
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extern SECItem *SECITEM_DupItem(const SECItem *from);
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/*
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** Allocate an item and copy "from" into it. The item itself and the
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** data it points to are both allocated from the arena. If arena is
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** NULL, this function is equivalent to SECITEM_DupItem.
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*/
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extern SECItem *SECITEM_ArenaDupItem(PLArenaPool *arena, const SECItem *from);
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/*
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** Free "zap". If freeit is PR_TRUE then "zap" itself is freed.
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*/
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extern void SECITEM_FreeItem(SECItem *zap, PRBool freeit);
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/*
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** Zero and then free "zap". If freeit is PR_TRUE then "zap" itself is freed.
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*/
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extern void SECITEM_ZfreeItem(SECItem *zap, PRBool freeit);
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PLHashNumber PR_CALLBACK SECITEM_Hash ( const void *key);
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PRIntn PR_CALLBACK SECITEM_HashCompare ( const void *k1, const void *k2);
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SEC_END_PROTOS
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#endif /* _SECITEM_H_ */
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