#include <cASNWriterRev.h>

Inheritance diagram for GrayLib::cASNWriterRev:

Public Member Functions
	cASNWriterRev (BYTE *pStart, size_t nLen)

	cASNWriterRev (cMemBlock &m)

size_t	get_LenLeft () const

size_t	get_LenWritten () const

BYTE *	get_OutPtr () const

void	AddOut (size_t nSize)

void	WriteByteRaw (BYTE b)

HRESULT	WriteByte (BYTE b)

HRESULT	WriteRawData (const void *pBuffer, size_t size)

HRESULT	WriteLengthCode (size_t len)

HRESULT	WriteTag (ASN_t nTagExpected, size_t len)

HRESULT	WriteTagNull ()

HRESULT	WriteTagBlock (ASN_t nTag, const void *pBuffer, size_t nSizeBuffer)

HRESULT	WriteTagBoolean (bool bVal)

HRESULT	WriteTagInt (int iVal)

HRESULT	WriteTagInt (const BYTE *pData, size_t nSize, bool bNegativeOrNA)

HRESULT	WriteTagInt (const cBitArray &X, bool bNegativeOrNA=false)

HRESULT	WriteTagOID (const char *oid, size_t oid_len)

HRESULT	WriteTagStringPrintable (const char *text, StrLen_t text_len=k_StrLen_UNK)

HRESULT	WriteTagStringIA5 (const char *text, StrLen_t text_len=k_StrLen_UNK)

HRESULT	WriteTagArrayBits (const BYTE *pBuffer, BIT_ENUM_t bits)

HRESULT	WriteTagArrayBytes (const BYTE *pBuffer, size_t size)

HRESULT	WriteTagTime (const cTimeUnits &Tu)

HRESULT	WriteTagTime (const cTimeInt &time, TZ_TYPE nTimeZoneOffset=TZ_LOCAL)

HRESULT	WriteSet1 (const cASNSet1 &s)

HRESULT	WriteSets (const cASNSets &rNames)

HRESULT	WriteExtensionList1 (const cASNSet1 *ext)

HRESULT	WriteExtensionList (const cASNSets &rExtensions)

HRESULT	WriteTagSeqAlg (const char *oid, size_t oid_len)

HRESULT	WriteTagSeqAlg2 (const char oid, size_t oid_len, BYTE pSig, size_t size)

Public Member Functions inherited from Gray::cMemBlock
	cMemBlock () noexcept

	cMemBlock (const void *pData, size_t nSize) noexcept

	cMemBlock (const cMemBlock &block) noexcept

	cMemBlock (const cMemBlock *pBlock) noexcept

size_t	get_DataSize () const noexcept

void *	get_Data () const noexcept

BYTE *	get_DataBytes () const noexcept

char *	get_DataA () const noexcept

	operator const BYTE * () const noexcept

bool	isValidPtr () const noexcept

bool	IsValidIndex (size_t i) const noexcept

bool	IsValidIndex2 (size_t i) const noexcept

bool	IsValidPtr (const void *p) const noexcept

bool	IsValidPtr2 (const void *p) const noexcept

bool	IsZeros () const noexcept

bool	IsEqualData (const void *pData, size_t nSize) const noexcept

bool	IsEqualData (const cMemBlock *pData) const noexcept

bool	IsEqualData (const cMemBlock &data) const noexcept

BYTE *	GetOffset (size_t nOffset) const

const void *	get_DataEnd () const noexcept

void	put_DataPtr (void *pStart) noexcept

void	put_Size (size_t nSize) noexcept

void	SetBlock (void *pData, size_t nSize) noexcept

void	SetEmptyBlock () noexcept

void	InitZeros () noexcept

StrLen_t	ConvertToString (char *pszDst, StrLen_t iDstSizeMax) const

Protected Member Functions
HRESULT	WriteSetsRev (const cASNSets *pCur)

Protected Attributes
BYTE *	m_pOutCur
	current write position. Moves down. More...

Protected Attributes inherited from Gray::cMemBlock
size_t	m_nSize
	size_t of m_pData in bytes. May be determined at runtime. More...

void *	m_pData

Additional Inherited Members
Static Public Member Functions inherited from Gray::cMemBlock
static COMPARE_t __stdcall	Compare (const void pData1, size_t iLen1, const void pData2, size_t iLen2)

Detailed Description

Helper class for writing an ASN blob in memory. Used for DER format. Similar to cStreamStatic Write BACKWARDS so we can prefix with calculated lengths. Weird. But since the length code itself is variable length I can't just leave an empty spot for it! similar to StrBuilder but backwards. Opposite to cASNReader Buffer ownership and delete responsibility is external.

Constructor & Destructor Documentation

◆ cASNWriterRev() [1/2]

GrayLib::cASNWriterRev::cASNWriterRev	(	BYTE *	pStart,
		size_t	nLen
	)

inline

◆ cASNWriterRev() [2/2]

GrayLib::cASNWriterRev::cASNWriterRev ( cMemBlock & m )

inline

Member Function Documentation

◆ AddOut()

void GrayLib::cASNWriterRev::AddOut ( size_t nSize )

inline

◆ get_LenLeft()

size_t GrayLib::cASNWriterRev::get_LenLeft ( ) const

inline

Space left. intentionally backwards.

◆ get_LenWritten()

size_t GrayLib::cASNWriterRev::get_LenWritten ( ) const

inline

How much data written so far ? intentionally backwards.

◆ get_OutPtr()

BYTE* GrayLib::cASNWriterRev::get_OutPtr ( ) const

inline

get write position.

◆ WriteByte()

HRESULT GrayLib::cASNWriterRev::WriteByte ( BYTE b )

Write a ASN.1 tag in ASN.1 format

b = some byte to write.
Returns
the length written or <0 = error

◆ WriteByteRaw()

void GrayLib::cASNWriterRev::WriteByteRaw ( BYTE b )

inline

◆ WriteExtensionList()

HRESULT GrayLib::cASNWriterRev::WriteExtensionList ( const cASNSets & rExtensions )

– contains the DER encoding of an ASN.1 value – corresponding to the extension type identified – by extnID

◆ WriteExtensionList1()

HRESULT GrayLib::cASNWriterRev::WriteExtensionList1 ( const cASNSet1 * ext )

◆ WriteLengthCode()

HRESULT GrayLib::cASNWriterRev::WriteLengthCode ( size_t len )

Write a variable length, length field in ASN.1 format Write encoded length backwards since it is variable length itself. Opposite of ReadLengthCode()

Returns: the length written (1,2, or 3) or <0 = error

◆ WriteRawData()

HRESULT GrayLib::cASNWriterRev::WriteRawData	(	const void *	pBuffer,
		size_t	size
	)

Write raw buffer data

Note

function works backwards in data buffer

pBuffer = data buffer to write
size = length of the data buffer

Returns: the length written or <0 = error

◆ WriteSet1()

HRESULT GrayLib::cASNWriterRev::WriteSet1 ( const cASNSet1 & s )

RelativeDistinguishedName ::= SET OF AttributeTypeAndValue

AttributeTypeAndValue ::= SEQUENCE { type AttributeType, value AttributeValue }

AttributeType ::= OBJECT IDENTIFIER

AttributeValue ::= ANY DEFINED BY AttributeType

◆ WriteSets()

HRESULT GrayLib::cASNWriterRev::WriteSets ( const cASNSets & rNames )

◆ WriteSetsRev()

HRESULT GrayLib::cASNWriterRev::WriteSetsRev ( const cASNSets * pCur )

protected

Write in REVERSE

◆ WriteTag()

HRESULT GrayLib::cASNWriterRev::WriteTag	(	ASN_t	nTagExpected,
		size_t	len
	)

Opposite of ReadTag()

nTag = ASN_t

◆ WriteTagArrayBits()

HRESULT GrayLib::cASNWriterRev::WriteTagArrayBits	(	const BYTE *	pBuffer,
		BIT_ENUM_t	bits
	)

Write a ASN_ArrayBits and value in ASN.1 format

Note

function works backwards in data buffer

pBuffer = the bitstring
bits = the total number of bits in the bitstring

Returns: the length written or <0 = error

◆ WriteTagArrayBytes()

HRESULT GrayLib::cASNWriterRev::WriteTagArrayBytes	(	const BYTE *	pBuffer,
		size_t	size
	)

Write an octet string tag (ASN_ArrayBytes) and value in ASN.1 format

Note

function works backwards in data buffer

pBuffer = data buffer to write
size = length of the data buffer

Returns: the length written or <0 = error

◆ WriteTagBlock()

HRESULT GrayLib::cASNWriterRev::WriteTagBlock	(	ASN_t	nTag,
		const void *	pBuffer,
		size_t	nSizeBuffer
	)

Write ASN Tag and data in ASN.1 format

Note

function works backwards in data buffer opposite of ReadTagBlock()

pBuffer = the data to write
nSizeBuffer = length of the data

Returns: the length written or <0 = error

◆ WriteTagBoolean()

HRESULT GrayLib::cASNWriterRev::WriteTagBoolean ( bool bVal )

Write a boolean tag (ASN_BOOLEAN) and value in ASN.1 format opposite of ReadTagBoolean()

◆ WriteTagInt() [1/3]

HRESULT GrayLib::cASNWriterRev::WriteTagInt	(	const BYTE *	pData,
		size_t	nSize,
		bool	bNegativeOrNA
	)

DER format assumes 2s complement for numbers, the leftmost bit should be 0 for positive numbers and 1 for negative numbers.

bNegativeOrNA = true for unsigned or ignore sign.

◆ WriteTagInt() [2/3]

HRESULT GrayLib::cASNWriterRev::WriteTagInt	(	const cBitArray &	X,
		bool	bNegativeOrNA = `false`
	)

Write a big number (ASN_INTEGER) in ASN.1 format

Note

function works backwards in data buffer

X = the MPI to write

Returns: the length written or <0 = error

◆ WriteTagInt() [3/3]

HRESULT GrayLib::cASNWriterRev::WriteTagInt ( int iVal )

Write an int tag (ASN_INTEGER) and value in ASN.1 format. Variable length.

Note

function works backwards in data buffer

iVal = the integer value

Returns: the length written or <0 = error opposite of ReadTagInt()

Todo:: FIXME negative values DER format assumes 2s complement for numbers, so the leftmost bit should be 0 for positive numbers and 1 for negative numbers.

◆ WriteTagNull()

HRESULT GrayLib::cASNWriterRev::WriteTagNull ( )

Write a ASN_NULL tag with zero data in ASN.1 format

Note: function works backwards in data buffer

Returns: the length written or <0 = error

◆ WriteTagOID()

HRESULT GrayLib::cASNWriterRev::WriteTagOID	(	const char *	oid,
		size_t	oid_len
	)

Write an OID tag (ASN_OID) and data in ASN.1 format

Note

function works backwards in data buffer

oid = the OID to write
oid_len = length of the OID

Returns: the length written or <0 = error

◆ WriteTagSeqAlg()

HRESULT GrayLib::cASNWriterRev::WriteTagSeqAlg	(	const char *	oid,
		size_t	oid_len
	)

Write an AlgorithmIdentifier sequence in ASN.1 format

Note

function works backwards in data buffer

oid = the OID of the algorithm
oid_len = length of the OID If 0, nullptr parameters are added

Returns: the length written or <0 = error

◆ WriteTagSeqAlg2()

HRESULT GrayLib::cASNWriterRev::WriteTagSeqAlg2	(	const char *	oid,
		size_t	oid_len,
		BYTE *	pSig,
		size_t	size
	)

◆ WriteTagStringIA5()

HRESULT GrayLib::cASNWriterRev::WriteTagStringIA5	(	const char *	text,
		StrLen_t	text_len = `k_StrLen_UNK`
	)

Write an IA5 string tag (ASN_StringIA5) and value in ASN.1 format

Note

function works backwards in data buffer

text = the text to write
text_len = length of the text

Returns: the length written or <0 = error

◆ WriteTagStringPrintable()

HRESULT GrayLib::cASNWriterRev::WriteTagStringPrintable	(	const char *	text,
		StrLen_t	text_len = `k_StrLen_UNK`
	)

Write a ASN_StringPrintable tag and value in ASN.1 format

Note

function works backwards in data buffer

text = the text to write
text_len = length of the text

Returns: the length written or <0 = error

◆ WriteTagTime() [1/2]

HRESULT GrayLib::cASNWriterRev::WriteTagTime	(	const cTimeInt &	time,
		TZ_TYPE	nTimeZoneOffset = `TZ_LOCAL`
	)

Write ASN_TimeUTC or ASN_TimeGeneral Compliment of ReadTagTime()

◆ WriteTagTime() [2/2]

HRESULT GrayLib::cASNWriterRev::WriteTagTime ( const cTimeUnits & Tu )

Write ASN_TimeUTC or ASN_TimeGeneral Compliment of ReadTagTime() e.g. "20131231235959" for December 31st 2013 at 23:59:59

Member Data Documentation

◆ m_pOutCur

BYTE* GrayLib::cASNWriterRev::m_pOutCur

protected

current write position. Moves down.

The documentation for this class was generated from the following files:

c:/Dennis/Source/Gray/GrayLib/include/File/cASNWriterRev.h
c:/Dennis/Source/Gray/GrayLib/src/File/cASNWriterRev.cpp

Public Member Functions

Protected Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ cASNWriterRev() [1/2]

◆ cASNWriterRev() [2/2]

Member Function Documentation

◆ AddOut()

◆ get_LenLeft()

◆ get_LenWritten()

◆ get_OutPtr()

◆ WriteByte()

◆ WriteByteRaw()

◆ WriteExtensionList()

◆ WriteExtensionList1()

◆ WriteLengthCode()

◆ WriteRawData()

◆ WriteSet1()

◆ WriteSets()

◆ WriteSetsRev()

◆ WriteTag()

◆ WriteTagArrayBits()

◆ WriteTagArrayBytes()

◆ WriteTagBlock()

◆ WriteTagBoolean()

◆ WriteTagInt() [1/3]

◆ WriteTagInt() [2/3]

◆ WriteTagInt() [3/3]

◆ WriteTagNull()

◆ WriteTagOID()

◆ WriteTagSeqAlg()

◆ WriteTagSeqAlg2()

◆ WriteTagStringIA5()

◆ WriteTagStringPrintable()

◆ WriteTagTime() [1/2]

◆ WriteTagTime() [2/2]

Member Data Documentation

◆ m_pOutCur