2017-04-19 07:56:45 +00:00
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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/*
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* item.c
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*
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* This contains some item-manipulation code.
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*/
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#ifndef BASE_H
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#include "base.h"
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#endif /* BASE_H */
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/*
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* nssItem_Create
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*
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* -- fgmr comments --
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*
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* The error may be one of the following values:
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* NSS_ERROR_INVALID_ARENA
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* NSS_ERROR_NO_MEMORY
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* NSS_ERROR_ARENA_MARKED_BY_ANOTHER_THREAD
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* NSS_ERROR_INVALID_POINTER
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2020-01-24 01:47:36 +00:00
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*
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2017-04-19 07:56:45 +00:00
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* Return value:
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* A pointer to an NSSItem upon success
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* NULL upon failure
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*/
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NSS_IMPLEMENT NSSItem *
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2020-01-24 01:47:36 +00:00
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nssItem_Create(NSSArena *arenaOpt, NSSItem *rvOpt, PRUint32 length,
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const void *data)
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2017-04-19 07:56:45 +00:00
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{
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2020-01-24 01:47:36 +00:00
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NSSItem *rv = (NSSItem *)NULL;
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2017-04-19 07:56:45 +00:00
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#ifdef DEBUG
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2020-01-24 01:47:36 +00:00
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if ((NSSArena *)NULL != arenaOpt) {
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if (PR_SUCCESS != nssArena_verifyPointer(arenaOpt)) {
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return (NSSItem *)NULL;
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}
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2017-04-19 07:56:45 +00:00
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}
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2020-01-24 01:47:36 +00:00
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if ((const void *)NULL == data) {
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if (length > 0) {
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nss_SetError(NSS_ERROR_INVALID_POINTER);
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return (NSSItem *)NULL;
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}
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2017-04-19 07:56:45 +00:00
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}
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#endif /* DEBUG */
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2020-01-24 01:47:36 +00:00
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if ((NSSItem *)NULL == rvOpt) {
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rv = (NSSItem *)nss_ZNEW(arenaOpt, NSSItem);
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if ((NSSItem *)NULL == rv) {
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goto loser;
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}
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} else {
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rv = rvOpt;
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2017-04-19 07:56:45 +00:00
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}
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2020-01-24 01:47:36 +00:00
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rv->size = length;
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rv->data = nss_ZAlloc(arenaOpt, length);
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if ((void *)NULL == rv->data) {
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goto loser;
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}
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2017-04-19 07:56:45 +00:00
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2020-01-24 01:47:36 +00:00
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if (length > 0) {
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(void)nsslibc_memcpy(rv->data, data, length);
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}
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2017-04-19 07:56:45 +00:00
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2020-01-24 01:47:36 +00:00
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return rv;
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2017-04-19 07:56:45 +00:00
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2020-01-24 01:47:36 +00:00
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loser:
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if (rv != rvOpt) {
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nss_ZFreeIf(rv);
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}
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2017-04-19 07:56:45 +00:00
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2020-01-24 01:47:36 +00:00
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return (NSSItem *)NULL;
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2017-04-19 07:56:45 +00:00
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}
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NSS_IMPLEMENT void
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2020-01-24 01:47:36 +00:00
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nssItem_Destroy(NSSItem *item)
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2017-04-19 07:56:45 +00:00
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{
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2020-01-24 01:47:36 +00:00
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nss_ClearErrorStack();
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2017-04-19 07:56:45 +00:00
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2020-01-24 01:47:36 +00:00
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nss_ZFreeIf(item->data);
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nss_ZFreeIf(item);
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2017-04-19 07:56:45 +00:00
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}
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/*
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* nssItem_Duplicate
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*
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* -- fgmr comments --
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*
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* The error may be one of the following values:
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* NSS_ERROR_INVALID_ARENA
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* NSS_ERROR_NO_MEMORY
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* NSS_ERROR_ARENA_MARKED_BY_ANOTHER_THREAD
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* NSS_ERROR_INVALID_ITEM
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2020-01-24 01:47:36 +00:00
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*
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2017-04-19 07:56:45 +00:00
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* Return value:
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* A pointer to an NSSItem upon success
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* NULL upon failure
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*/
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NSS_IMPLEMENT NSSItem *
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2020-01-24 01:47:36 +00:00
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nssItem_Duplicate(NSSItem *obj, NSSArena *arenaOpt, NSSItem *rvOpt)
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2017-04-19 07:56:45 +00:00
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{
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#ifdef DEBUG
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2020-01-24 01:47:36 +00:00
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if ((NSSArena *)NULL != arenaOpt) {
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if (PR_SUCCESS != nssArena_verifyPointer(arenaOpt)) {
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return (NSSItem *)NULL;
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}
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2017-04-19 07:56:45 +00:00
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}
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2020-01-24 01:47:36 +00:00
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if ((NSSItem *)NULL == obj) {
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nss_SetError(NSS_ERROR_INVALID_ITEM);
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return (NSSItem *)NULL;
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}
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2017-04-19 07:56:45 +00:00
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#endif /* DEBUG */
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2020-01-24 01:47:36 +00:00
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return nssItem_Create(arenaOpt, rvOpt, obj->size, obj->data);
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2017-04-19 07:56:45 +00:00
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}
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#ifdef DEBUG
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/*
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* nssItem_verifyPointer
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*
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* -- fgmr comments --
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*
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* The error may be one of the following values:
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* NSS_ERROR_INVALID_ITEM
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*
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* Return value:
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* PR_SUCCESS upon success
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* PR_FAILURE upon failure
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*/
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NSS_IMPLEMENT PRStatus
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2020-01-24 01:47:36 +00:00
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nssItem_verifyPointer(const NSSItem *item)
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2017-04-19 07:56:45 +00:00
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{
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2020-01-24 01:47:36 +00:00
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if (((const NSSItem *)NULL == item) ||
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(((void *)NULL == item->data) && (item->size > 0))) {
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nss_SetError(NSS_ERROR_INVALID_ITEM);
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return PR_FAILURE;
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}
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2017-04-19 07:56:45 +00:00
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2020-01-24 01:47:36 +00:00
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return PR_SUCCESS;
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2017-04-19 07:56:45 +00:00
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}
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#endif /* DEBUG */
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/*
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* nssItem_Equal
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*
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* -- fgmr comments --
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*
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* The error may be one of the following values:
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* NSS_ERROR_INVALID_ITEM
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*
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* Return value:
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* PR_TRUE if the items are identical
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* PR_FALSE if they aren't
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* PR_FALSE upon error
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*/
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NSS_IMPLEMENT PRBool
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2020-01-24 01:47:36 +00:00
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nssItem_Equal(const NSSItem *one, const NSSItem *two, PRStatus *statusOpt)
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2017-04-19 07:56:45 +00:00
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{
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2020-01-24 01:47:36 +00:00
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if ((PRStatus *)NULL != statusOpt) {
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*statusOpt = PR_SUCCESS;
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}
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2017-04-19 07:56:45 +00:00
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2020-01-24 01:47:36 +00:00
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if (((const NSSItem *)NULL == one) && ((const NSSItem *)NULL == two)) {
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return PR_TRUE;
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}
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2017-04-19 07:56:45 +00:00
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2020-01-24 01:47:36 +00:00
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if (((const NSSItem *)NULL == one) || ((const NSSItem *)NULL == two)) {
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return PR_FALSE;
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}
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2017-04-19 07:56:45 +00:00
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2020-01-24 01:47:36 +00:00
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if (one->size != two->size) {
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return PR_FALSE;
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}
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2017-04-19 07:56:45 +00:00
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2020-01-24 01:47:36 +00:00
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return nsslibc_memequal(one->data, two->data, one->size, statusOpt);
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2017-04-19 07:56:45 +00:00
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}
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