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