CPaddingNone Class Reference

#include <padding.h>

class CPaddingNone : public CPadding

Inherits from

Public Member Functions
virtual TInt MaxPaddedLength(TInt)
virtual TInt MinPaddingLength(void)
IMPORT_C CPaddingNone *NewL(TInt)
IMPORT_C CPaddingNone *NewLC(TInt)
virtual voidUnPadL(const TDesC8 &, TDes8 &)
Protected Member Functions
CPaddingNone(TInt)
Inherited Functions
CBase::CBase()
CBase::Delete(CBase *)
CBase::Extension_(TUint,TAny *&,TAny *)
CBase::operator new(TUint)
CBase::operator new(TUint,TAny *)
CBase::operator new(TUint,TLeave)
CBase::operator new(TUint,TLeave,TUint)
CBase::operator new(TUint,TUint)
CBase::~CBase()
CPadding::BlockSize(void)const
CPadding::CPadding(TInt)
CPadding::GetExtension(TUint,TAny *&,TAny *)
CPadding::MaxUnPaddedLength(TInt)const
CPadding::PadL(const TDesC8 &,TDes8 &)
CPadding::SetBlockSize(TInt)

Detailed Description

This concrete subclass of CPadding appends no padding.

aOutput will be a copy of aInput after any call to PadL() or UnPadL().

Constructor & Destructor Documentation

CPaddingNone ( TInt )

IMPORT_CCPaddingNone(TIntaBlockBytes)[protected]

Constructor

Parameters
aBlockBytesThe block size in bytes.

Member Function Documentation

MaxPaddedLength ( TInt )

TInt MaxPaddedLength(TIntaInputBytes)const [virtual]

Reimplemented from CPadding::MaxPaddedLength(TInt)const

Gets the size of the aOutput buffer, in a call to PadL(), must be in order to accommodate a block size of BlockSize() and an input size of aInputBytes.

Note:

By default, this function returns the output of BlockSize(). If a derived padding system outputs more than a single block of padding, one must override this function and return the appropriate value.

Parameters
aInputBytesThe amount of data to be padded out in bytes.
Return Value
A TInt representing the maximum amount of padded output data (in bytes) for a given block and input size.

MinPaddingLength ( void )

TInt MinPaddingLength(void)const [virtual]

Reimplemented from CPadding::MinPaddingLength(void)const

Gets the smallest number of bytes that PadL() will ever add to aInput in order to get a valid block aligned aOutput.

For example, in SSLv3 padding, if the block size is 8 and aInput is 7 bytes, it will append 1 byte of padding. For SSLv3 padding, this is the smallest amount possible as an 8 byte input will add another block size (8 more bytes) of padded data.

Return Value
A TInt containing the smallest number of padding bytes possible.

NewL ( TInt )

IMPORT_C CPaddingNone *NewL(TIntaBlockBytes =  KMaxTInt )[static]

Creates a new CPaddingNone object.

Parameters
aBlockBytesThe block size in bytes.
Return Value
A pointer to the new CPaddingNone object.

NewLC ( TInt )

IMPORT_C CPaddingNone *NewLC(TIntaBlockBytes =  KMaxTInt )[static]

Creates a new CPaddingNone object and leaves a pointer to it on the cleanup stack.

Parameters
aBlockBytesThe block size in bytes.
Return Value
A pointer to the new CPaddingNone object.

UnPadL ( const TDesC8 &, TDes8 & )

voidUnPadL(const TDesC8 &aInput,
TDes8 &aOutput
)[virtual]

Removes padding from aInput and appends unpadded result to aOutput.

Parameters
aInputData to be unpadded.
aOutputOn return, the unpadded data.
© Nokia 2005.