VirtualBox

source: vbox/trunk/src/VBox/Runtime/common/asn1/asn1-ut-null.cpp@ 70643

Last change on this file since 70643 was 69111, checked in by vboxsync, 7 years ago

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1/* $Id: asn1-ut-null.cpp 69111 2017-10-17 14:26:02Z vboxsync $ */
2/** @file
3 * IPRT - ASN.1, NULL type.
4 */
5
6/*
7 * Copyright (C) 2006-2017 Oracle Corporation
8 *
9 * This file is part of VirtualBox Open Source Edition (OSE), as
10 * available from http://www.virtualbox.org. This file is free software;
11 * you can redistribute it and/or modify it under the terms of the GNU
12 * General Public License (GPL) as published by the Free Software
13 * Foundation, in version 2 as it comes in the "COPYING" file of the
14 * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15 * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16 *
17 * The contents of this file may alternatively be used under the terms
18 * of the Common Development and Distribution License Version 1.0
19 * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
20 * VirtualBox OSE distribution, in which case the provisions of the
21 * CDDL are applicable instead of those of the GPL.
22 *
23 * You may elect to license modified versions of this file under the
24 * terms and conditions of either the GPL or the CDDL or both.
25 */
26
27
28/*********************************************************************************************************************************
29* Header Files *
30*********************************************************************************************************************************/
31#include "internal/iprt.h"
32#include <iprt/asn1.h>
33
34#include <iprt/err.h>
35#include <iprt/string.h>
36
37#include <iprt/formats/asn1.h>
38
39
40/*
41 * ASN.1 NULL - Special Methods.
42 */
43
44
45/*
46 * ASN.1 NULL - Standard Methods.
47 */
48
49
50RT_DECL_DATA_CONST(RTASN1COREVTABLE const) g_RTAsn1Null_Vtable =
51{
52 "RTAsn1Null",
53 sizeof(RTASN1NULL),
54 ASN1_TAG_NULL,
55 ASN1_TAGCLASS_UNIVERSAL | ASN1_TAGFLAG_PRIMITIVE,
56 0,
57 (PFNRTASN1COREVTDTOR)RTAsn1Null_Delete,
58 (PFNRTASN1COREVTENUM)RTAsn1Null_Enum,
59 (PFNRTASN1COREVTCLONE)RTAsn1Null_Clone,
60 (PFNRTASN1COREVTCOMPARE)RTAsn1Null_Compare,
61 (PFNRTASN1COREVTCHECKSANITY)RTAsn1Null_CheckSanity,
62 NULL,
63 NULL
64};
65
66
67RTDECL(int) RTAsn1Null_Init(PRTASN1NULL pThis, PCRTASN1ALLOCATORVTABLE pAllocator)
68{
69 RT_NOREF_PV(pAllocator);
70 return RTAsn1Core_InitEx(&pThis->Asn1Core, ASN1_TAG_NULL, ASN1_TAGCLASS_UNIVERSAL | ASN1_TAGFLAG_PRIMITIVE,
71 &g_RTAsn1Null_Vtable, RTASN1CORE_F_PRESENT | RTASN1CORE_F_PRIMITE_TAG_STRUCT);
72}
73
74
75RTDECL(int) RTAsn1Null_Clone(PRTASN1NULL pThis, PCRTASN1NULL pSrc, PCRTASN1ALLOCATORVTABLE pAllocator)
76{
77 AssertPtr(pSrc); AssertPtr(pThis); AssertPtr(pAllocator); RT_NOREF_PV(pAllocator);
78 RT_ZERO(*pThis);
79 if (RTAsn1Null_IsPresent(pSrc))
80 {
81 AssertReturn(pSrc->Asn1Core.pOps == &g_RTAsn1Null_Vtable, VERR_INTERNAL_ERROR_3);
82 AssertReturn(pSrc->Asn1Core.cb == 0, VERR_INTERNAL_ERROR_4);
83
84 int rc = RTAsn1Core_CloneNoContent(&pThis->Asn1Core, &pSrc->Asn1Core);
85 if (RT_FAILURE(rc))
86 return rc;
87 }
88 return VINF_SUCCESS;
89}
90
91
92RTDECL(void) RTAsn1Null_Delete(PRTASN1NULL pThis)
93{
94 if ( pThis
95 && RTAsn1Null_IsPresent(pThis))
96 {
97 Assert(pThis->Asn1Core.pOps == &g_RTAsn1Null_Vtable);
98 RT_ZERO(*pThis);
99 }
100}
101
102
103RTDECL(int) RTAsn1Null_Enum(PRTASN1NULL pThis, PFNRTASN1ENUMCALLBACK pfnCallback, uint32_t uDepth, void *pvUser)
104{
105 RT_NOREF_PV(pThis); RT_NOREF_PV(pfnCallback); RT_NOREF_PV(uDepth); RT_NOREF_PV(pvUser);
106 Assert(pThis && (!RTAsn1Null_IsPresent(pThis) || pThis->Asn1Core.pOps == &g_RTAsn1Null_Vtable));
107
108 /* No children to enumerate. */
109 return VINF_SUCCESS;
110}
111
112
113RTDECL(int) RTAsn1Null_Compare(PCRTASN1NULL pLeft, PCRTASN1NULL pRight)
114{
115 Assert(pLeft && (!RTAsn1Null_IsPresent(pLeft) || pLeft->Asn1Core.pOps == &g_RTAsn1Null_Vtable));
116 Assert(pRight && (!RTAsn1Null_IsPresent(pRight) || pRight->Asn1Core.pOps == &g_RTAsn1Null_Vtable));
117
118 return (int)RTAsn1Null_IsPresent(pLeft) - (int)RTAsn1Null_IsPresent(pRight);
119}
120
121
122RTDECL(int) RTAsn1Null_CheckSanity(PCRTASN1NULL pThis, uint32_t fFlags, PRTERRINFO pErrInfo, const char *pszErrorTag)
123{
124 RT_NOREF_PV(fFlags);
125 if (RT_UNLIKELY(!RTAsn1Null_IsPresent(pThis)))
126 return RTErrInfoSetF(pErrInfo, VERR_ASN1_NOT_PRESENT, "%s: Missing (NULL).", pszErrorTag);
127 return VINF_SUCCESS;
128}
129
130/* No NULL object collections. */
131
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