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/* $Id: asn1-ut-null.cpp $ */
/** @file
* IPRT - ASN.1, NULL type.
*/
/*
* Copyright (C) 2006-2023 Oracle and/or its affiliates.
*
* This file is part of VirtualBox base platform packages, as
* available from https://www.virtualbox.org.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation, in version 3 of the
* License.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <https://www.gnu.org/licenses>.
*
* The contents of this file may alternatively be used under the terms
* of the Common Development and Distribution License Version 1.0
* (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
* in the VirtualBox distribution, in which case the provisions of the
* CDDL are applicable instead of those of the GPL.
*
* You may elect to license modified versions of this file under the
* terms and conditions of either the GPL or the CDDL or both.
*
* SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
*/
/*********************************************************************************************************************************
* Header Files *
*********************************************************************************************************************************/
#include "internal/iprt.h"
#include <iprt/asn1.h>
#include <iprt/err.h>
#include <iprt/string.h>
#include <iprt/formats/asn1.h>
/*
* ASN.1 NULL - Special Methods.
*/
/*
* ASN.1 NULL - Standard Methods.
*/
RT_DECL_DATA_CONST(RTASN1COREVTABLE const) g_RTAsn1Null_Vtable =
{
"RTAsn1Null",
sizeof(RTASN1NULL),
ASN1_TAG_NULL,
ASN1_TAGCLASS_UNIVERSAL | ASN1_TAGFLAG_PRIMITIVE,
0,
(PFNRTASN1COREVTDTOR)RTAsn1Null_Delete,
(PFNRTASN1COREVTENUM)RTAsn1Null_Enum,
(PFNRTASN1COREVTCLONE)RTAsn1Null_Clone,
(PFNRTASN1COREVTCOMPARE)RTAsn1Null_Compare,
(PFNRTASN1COREVTCHECKSANITY)RTAsn1Null_CheckSanity,
NULL,
NULL
};
RTDECL(int) RTAsn1Null_Init(PRTASN1NULL pThis, PCRTASN1ALLOCATORVTABLE pAllocator)
{
RT_NOREF_PV(pAllocator);
return RTAsn1Core_InitEx(&pThis->Asn1Core, ASN1_TAG_NULL, ASN1_TAGCLASS_UNIVERSAL | ASN1_TAGFLAG_PRIMITIVE,
&g_RTAsn1Null_Vtable, RTASN1CORE_F_PRESENT | RTASN1CORE_F_PRIMITE_TAG_STRUCT);
}
RTDECL(int) RTAsn1Null_Clone(PRTASN1NULL pThis, PCRTASN1NULL pSrc, PCRTASN1ALLOCATORVTABLE pAllocator)
{
AssertPtr(pSrc); AssertPtr(pThis); AssertPtr(pAllocator); RT_NOREF_PV(pAllocator);
RT_ZERO(*pThis);
if (RTAsn1Null_IsPresent(pSrc))
{
AssertReturn(pSrc->Asn1Core.pOps == &g_RTAsn1Null_Vtable, VERR_INTERNAL_ERROR_3);
AssertReturn(pSrc->Asn1Core.cb == 0, VERR_INTERNAL_ERROR_4);
int rc = RTAsn1Core_CloneNoContent(&pThis->Asn1Core, &pSrc->Asn1Core);
if (RT_FAILURE(rc))
return rc;
}
return VINF_SUCCESS;
}
RTDECL(void) RTAsn1Null_Delete(PRTASN1NULL pThis)
{
if ( pThis
&& RTAsn1Null_IsPresent(pThis))
{
Assert(pThis->Asn1Core.pOps == &g_RTAsn1Null_Vtable);
RT_ZERO(*pThis);
}
}
RTDECL(int) RTAsn1Null_Enum(PRTASN1NULL pThis, PFNRTASN1ENUMCALLBACK pfnCallback, uint32_t uDepth, void *pvUser)
{
RT_NOREF_PV(pThis); RT_NOREF_PV(pfnCallback); RT_NOREF_PV(uDepth); RT_NOREF_PV(pvUser);
Assert(pThis && (!RTAsn1Null_IsPresent(pThis) || pThis->Asn1Core.pOps == &g_RTAsn1Null_Vtable));
/* No children to enumerate. */
return VINF_SUCCESS;
}
RTDECL(int) RTAsn1Null_Compare(PCRTASN1NULL pLeft, PCRTASN1NULL pRight)
{
Assert(pLeft && (!RTAsn1Null_IsPresent(pLeft) || pLeft->Asn1Core.pOps == &g_RTAsn1Null_Vtable));
Assert(pRight && (!RTAsn1Null_IsPresent(pRight) || pRight->Asn1Core.pOps == &g_RTAsn1Null_Vtable));
return (int)RTAsn1Null_IsPresent(pLeft) - (int)RTAsn1Null_IsPresent(pRight);
}
RTDECL(int) RTAsn1Null_CheckSanity(PCRTASN1NULL pThis, uint32_t fFlags, PRTERRINFO pErrInfo, const char *pszErrorTag)
{
RT_NOREF_PV(fFlags);
if (RT_UNLIKELY(!RTAsn1Null_IsPresent(pThis)))
return RTErrInfoSetF(pErrInfo, VERR_ASN1_NOT_PRESENT, "%s: Missing (NULL).", pszErrorTag);
return VINF_SUCCESS;
}
/* No NULL object collections. */
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